--1--

E94X25-TE

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

Structure

Bipolar silicon monolithic IC

Absolute Maximum Ratings (Ta=25°C)

· Supply voltage

· Operating temperature Topr

10 to +75

°C

· Storage temperature

Tstg

65 to +150

°C

· allowable power dissipation

(when mounted on board)

CXA1700AQ 1050 mW

CXA1700AR 1010 mW

Operating Condition

· Supply voltage

4.75

+0.5

0.25

Description

The CXA1700AQ/AR is an IC designed for 8mm

VCR Y/C main signal processing for consumer use.

Equipped with many built-in filters, the

CXA1700AQ/AR is a one-chip main signal

processing system that greatly reduces the number

of external components.

Features

· Built-in auto-adjusting filters

· Supports simple Hi-8 video.

· Supports camera recording.

· Supports power saving mode.

140mW for composite signal input

250mW for separate signal input

· Supports electronic volume (EVR) control.

· Supports BUS LINE.

· Supports NTSC/PAL.

Function

2-input INPUT SELECT, VIDEO AGC, DDS (Y

signal superimposition), synchronous separation,

VIDEO OUT DRIVE, Y/C mixing, Y/C

separation comb filter, Y/C cross talk elimination,

playback chroma feedback comb, Y dropout

compensation, Yd playback switching, Y signal H

correlation detection, Y pre-emphasis/de-emphasis,

white/dark clipping, clipping compensation,

MOD/DEMOD, HHS/HHS cancel, ACC, chroma

emphasis/de-emphasis, burst emphasis/de-

emphasis, XO/VXO, APC, AFC, APC ID, AFC ID,

burst ID, ACK, APC compensation, HHK, PI/PS,

frequency conversion system, PB C BPF, REC C

LPF, PB C LPF, CARRIER BPF, 4.1V regulator

Luminance and Color Signal Processing for 8mm VCR

CXA1700AQ

CXA1700AR

64 pin QFP (Plastic)

64 pin LQFP (Plastic)

CXA1700AQ/AR

For the availability of this product, please contact the sales office.

--2--

CXA1700AQ/AR

Block Diagram and Pin Configuration

(CXA1700AQ)

S · REC
+ACK · REC

BUS
DECODER

HHK

AFC DET

AFC ID

APC ID

1/8

APC
DET

ACK BID
DET

ACK
CONT

ACK

BID
FF

AUTO

CAR
CONV

1/N

CAR
BPF

VXO

VCO

CXA1700AQ

SWP

CAR. CONT

DEV. CONT

SMEAR. CONT

HHS

LPF

DEMOD

LIM

MOD

SYNC SEP

CLAMP

VIDEO
AGC

AGC DET

VD/HD
INSERT

Y MUTE

DDS

DOC TRAP

VCA 1

CLAMP 1

SYNC

ATT

BPF

ATT

LIM

TRAP

s c

TRAP

VCA 2

CLAMP 2

CLAMP 3

Sharpness

HPF

Y CORRE DET

NOISE CANCELLER

W/D CLIP

SMEAR COMP

Y EMPH

Y DE EMPH

CLAMP

HARD
CLIP

HHS CANCEL

SWP

CLIP COMP

PI
PS

REC C
LPF

REC
CONV

BURST
EMPH

BURST
DEEMPH

CROMA
EMPH

ACC
AMP

CAR
INV

PB C
LPF

PB
CONV

PB C
BPF

ACC
CONT

ACC
DET

CROMA
DEEMPH

SWP

ACK
SW

SWP

ACK
SW

C MUTE

INSEL

AGC OFF

S · REC+PB

REC

TEST2

REC

TEST2

TEST1

REC

CAM REC

TEST1

REC

TEST1

REC

C SEL

REC

S · REC

EDIT

PB · ACK

NO CORR

S · REC

W · PB

DOP

W ·PB

Yd PB

REC

W · PB

REC

SHP
THROU

PB+REC · CORR

REC · (S+443+EDIT+NO CORR)

C EMPH
CONT

MAIN
EMPH OUT

MAIN
EMPH TC

SUB
EMPH TC

EMPH IN

NC TC IN

DEMOD
OUT

REC
C OUT

COMP TC

DEEMPH
IN

VG1

C TRAP

LIM C

Y COMB
OUT

COMB
ADJ

AGC TC3

CLAMP
TC3

DL OUT2

SYN

DDS

ASK

V I

Y I

C L

EXT

C I

DC F

I R

V R

X T

C O

C I

X T

S ·REC
+ACK · REC

CLAMP

TC1

Y OUT

V OUT

GND

VIDEO

OUT

INV IN

RF/V

Y RF

OUT

Y RF IN

SMEAR

CONT

DEV

CONT

CARR
CONT

PB C IN

SWP

APC
FL

D. O.
PULSE

RF GND

+ +

90°
SHIFT

--3--

CXA1700AQ/AR

Block Diagram and Pin Configuration

(CXA1700AR)

CRO

S ·

HHK

C DE

I
D

APC

I
D

APC

K BI

BPF

VXO

1700A

.
CO

EAR

.
C

HHS

SYN

SEP

C DE

/
H

I
N

SER

Y M

DDS

C T

A 1

P 1

SYN

BPF

A 2

P 2

P 3

har

pnes

RRE

I
S

NCE

/
D CL

I
P

EAR

Y EM

Y D

I
P

HHS

NCE

I
P

C C

URS

EEM

PB C

BPF

CRO

EEM

C M

I
N

SEL

C+

EST

SEL

I
T

PB ·

S ·

W ·

HRO

C ·

(

443+

I
T

)

C E

I
N

B EM

NC T

D O

C C O

EEM

C T

CLA

TC3

OUT

CLA

TC2

OUT

AGC

IN1

COM

SYNC

DDS/

MASK

WDC

V IN

AGC

V IN

Y IN

REC L

JVD

D. O.

PUL

APC

AFC

EXT

C IN

DC FB

I RE

GND

X TA

V RE

X TA

OUT

CAM

SHP

FSC

OUT

VCO

C OU

C IN

P T

Y O

I
D

O OU

EAR

RR CO

PB C

S ·

90°

I
F

--4--

CXA1700AQ/AR

Pin Description

Symbol

Pin voltage

Equivalent circuit

Description

No.

Chroma emphasis f

(center

frequency) adjustment. (Refer

to item 7 on Description of

Operation.)

Main emphasis and main de-

emphasis time constant.

When recording, the

emphasized Y signal prior to

white/dark clipping is output.

Main emphasis and main de-

emphasis time constant. Apply

an external constant between

this pin and Pin 2, as shown

below.

HPF time constant that forms

sub emphasis and sub de-

emphasis. Add resistance

between this pin and Pin 11.

During recording, Y emphasis

input. During playback, this

signal to the noise canceler is

input. Performs diode

clamping (sync tip clamping),

with the clamp capacitance

attached externally.

25µA

150

1mA

150

100

150

C EMPH

CONT

MAIN

EMPH

OUT

MAIN

EMPH

SUB

EMPH

EMPH IN

Control

range:

1.8V to 3.8V

2.05V (sync

tip level)

2.05V (when

time constant

connected)

2.05V (when

time constant

connected)

2.05V (sync

tip level)

250mVp-p

Output

500mVp-p

Input

VG1

--5--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Connects external time

constant for HPF of noise

canceler. (Refer to item 11 on

Description of Operation.)

Y signal output that has been

FM demodulated and has

passed though the DEMOD

LPF.

During recording, a chroma

signal that has been burst

emphasized, chroma

emphasized, and frequency

converted is output. During

ACK, the output DC goes to

0V. During recording, if

TEST1 is High the burst

emphasized signal is output.

Connects external time

constant for HPF of the

white/dark clipping

compensation circuit during

playback.

Input for de-emphasis circuit

during playback. The signal is

input to the de-emphasis

circuit through the clipping

compensation circuit.

150

1mA

SAT

200

150

2.05V

NCTC IN

DEMOD

OUT

REC C

OUT

COMP TC

10 DEEMPH

2.05V (when

time constant

connected)

1.6V

2.0V

2.05V (when

time constant

connected)

2.05 V

(center DC)

140mVp-p

output during

standard

playback

Low-

frequency

conversion

chroma

signal

300mVp-p

output

180mVp-p

input during

playback

VG1

Input

VG1

--6--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Internal reference voltage

source. (Can not be used as

external bias for Pins other

than 4, 6, and 9.)

Outputs chroma signal that

has passed through PB C

BPF and chroma feedback

comb filter subtracter

after frequency conversion

during playback.

Connects decoupling

capacitor for limiter of the

playback Y comb block.

Outputs Y signal processed by

comb filter. During playback,

the signal is output through

the sharpness circuit. If mode

E is set High, the signal is

output without passing

through the f sc Trap; if mode

SHP THRU is set High, the

signal is output without

passing through the sharp

-ness circuit.

VCA gain adjustment in the

comb filter block. (Refer to

Adjustment Procedure.)

150

2.5k

150

300

0.6mA

270

150

10k

1.4mA

150

11 VG1

12 C TRAP

13 LIM C

14 Y COMB

OUT

15 COMB ADJ

2.05V

2.4V

1.2V

(sync tip

level)

Control

range: 1.8V

to Vcc

Chroma

signal

300mVp-p

output during

playback

Y signal

500mVp-p

output

--7--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Time constant for VCA circuit

in comb filter block. A DC

limiter circuit with an upper

limit of 4.0V and a lower limit

of 2.2V is built in.

Not connected. Normally,

connect to GND.

Time constant for feedback

clamp circuit in the comb filter

block.

Inputs CCD DL (delay line)

output signal to the VCA

circuit.

Time constant for feedback

clamp circuit in the comb filter

block.

150

40k

150

2.1V

150

16 AGC TC3

17 NC

18 CLAMP

TC3

19 DL OUT2

20 CLAMP

TC2

2.2V to 4.0V

2.1V (center

DC)

Video

500mVp-p

input

--8--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Inputs CCD DL (delay line)

output signal to VCA circuit.

Time constant for VCA circuit

in the comb filter block. A DC

limiter circuit with an upper

limit of 4.0V and a lower limit

of 2.2V is built in.

Output for inputting a signal to

the CCD DL (delay line).

Normally, Y+C signal is

output.

Composite sync signal output.

No output if mode SYNC SEP

OFF is set High.

Main block power supply.

40k

150

2.1V

150

1mA

150

2.5V

270

20k

270

50k

21 DL OUT1

22 AGC TC2

23 DL IN1

24 COMP

SYNC

25 V

2.1V (center

DC)

2.2V to 4.0V

2.2V

High :

2.5V,

Low :

output

=4.75V

Video

500mVp-p

input

Video

500mVp-p

output

--9--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Input for VOW (character

level) signal, VOB (character

background) timing pulse of

DDS (date display system)

and masking timing pulse.

MASK :

= 1.1V

DDS :

= 2.0V

By varying the input DC for

DDS over a range of 2.3V to

3.0V, the character level can

be changed.

(Refer to item 4 on Description

of Operation.)

Determines the white/dark

clipping levels. When open,

the standard white clipping

level is 235%, and the dark

clipping level is 95%.

(Mode DC1, 2 = Low, High)

(Refer to item 5 on Description

of Operation.)

Video signal input. Performs

diode clamping, with the

clamp capacitance externally

connected. If the mode MUTE

is set High, the charge of the

clamp capacitance is

discharged.

Time constant for the video

AGC circuit in the I/O block.

During mute and playback, the

charge of the external

capacitance is discharged.

150

45k

15k

2.0V

1.1V

16k

150

2.05V

10k

4.1V

30k

MUTE
ON

270

100nA

4µA

100

47k

MUTE ON
PB ON

DDS/MASK

WDC

V IN2

AGC TC1

2.0V

(when open)

(MASK)

1.5V

(DDS)

2.3 to 3.0V

2.6V

(when open)

2.05V

(sync tip

level)

Video

500mVp-p

input

--10--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Video signal input. Performs

diode clamping, with the

clamp capacitance externally

connected. If the mode MUTE

is set High, the charge of the

clamp capacitance is

discharged.

Level adjustment during

recording. The adjustment

range is 1.3V to 2.6V. During

playback, serves as input for

JOG (variable speed

playback) VD pulse and HD

pulse.

= 2.7V

(Refer to item 3 on Description

of Operation.)

Video signal input for video

out circuit. Performs diode

clamping, with the clamp

capacitance externally

connected.

Time constant for feedback

clamp circuit in I/O block.

I/O block signal output.

270

100nA

4µA

MUTE
ON

150

270

100nA

100

150

3.4k

27k

2.05V

30 V IN1

31 REC L/JVD

32 Y IN

33 CLAMP TC1

34 Y OUT

2.05V

(sync tip

level)

1.9V

(Typical value

during REC

LEVEL

adjustment)

1.6V

(sync tip

level)

1.8V

(sync tip

level)

Video

500mVp-p

input

Video

500mVp-p

input

Video

500mVp-p

output

--11--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

GND for the video out circuit.

Video out 75

driver output.

Inverted input for V sag

compensation for the video

out 75

driver.

Video out circuit and RF

system block power supply.

During recording, FM-

modulated Y signal output.

If mode TEST2 is set High

during recording, the Y signal

after white/dark clipping is

output.

RF block GND.

During playback, inputs Y-RF

signal to FM modulation

circuit.

During recording, adjustment

for high Luminance Smear

Compensation.

100

2.5mA

45k

150

10p

150

35 VOUT GND

36 VIDEO

OUT

37 INV IN

38 RF/V V

39 Y RF OUT

40 RF GND

41 Y RF IN

42 SMEAR

CONT

1.6V

(sync tip

level)

1.5V

=4.75V

2.1V

Control

range:

1.8V to Vcc

Video

2.0Vp-p

output

Video

1.0Vp-p

input

Y FM output

500mVp-p

YFM

200mVp-p

input

--12--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

During recording, adjustment

for deviation of Y-FM

modulation.

During recording, adjustment

for carrier of Y-FM modulation.

During playback, chroma RF

signal input.

PB C LPF is built in, so that a

signal with the AFM and ATF

components (Y RF + C RF)

eliminated can be input.

RF SWP (switching pulse) and

HCHG (head change) pulse

input. Half H shift, HHS

cancel, ACC channel hold,

and PI/PS switching operate

at V

= 0.7V. Yd playback

during playback operates at

= 2.05V (same as when

mode Yd is High).

Input to BUS DECODER. CS

is used as chip select, and

data is latched at rising edge.

CK is the clock input. Use a

clock frequency fck of less

than 1.3MHz. SI is used as a

serial data input.

150

50k

150

3.1V

150

2.05V

43 DEV CONT

44 CARR

CONT

45 PB C IN

46 SWP

47 CS

48 SI

49 CK

Control

range:

1.8V to Vcc

Control

range:

1.8V to Vcc

3.1V

(during

playback)

High :

Vcc,

Low :

input

(PB Y RF)

(PB C RF

100mVp-p)

input

--13--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Drop out pulse input.

= 2.05V

If the drop out pulse is input,

the signal prior to 1H is output

for the Y system and the APC

and ACC system errors are

held for the C system.

Connects an APC external

filter.

Connects an AFC external

filter.

During recording, the chroma

signal is input. When the

typical level is 75% color bar

input, the input signal is

314mVp-p.

Connects a DC feedback

external filter for a non-

adjustment VCO.

150

2.05V

100k

200

during
playback

200

50k

150

2.6V

200

50 D.O.PULSE

51 APC FL

52 AFC FL

53 EXT C IN

54 DCFB

High :

3.1V,

Low :

input

2.25V (typ.)

during lock

2.25V (typ.)

during lock

2.6V

2.25V (typ.)

during lock

(Chroma

signal

314mVp-p

input

--14--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

External reference current

source. Connect external

resistance of 18k

to GND.

Be careful concerning

interference pin.

Main block GND.

Crystal oscillation reference

input. Be careful concerning

interference pin and the

floating capacitance.

4.1V regulator output.

Crystal oscillation reference

output. Connects the crystal

between this pin and Pin 57.

Subcarrier input during

camera recording.

200mVp-p(min). Sharpness

control during playback.

20k

during
playback

270

100

15k

310

540µA

200

60k

55 I REF

56 GND

57 XTAL IN

58 VREG

59 XTAL OUT

60 CAM FSC

SHP

1.8V (when

resistance

connected)

2.0V

4.1V

3.1V

Sharpness

control range:

1.8V to V

260mVp-p

(NTSC)

during

playback

340mVp-p

(NTSC)

during

playback

--15--

CXA1700AQ/AR

Symbol

Pin voltage

Equivalent circuit

Description

No.

Subcarrier output. This

subcarrier is used for the CCD

delay line clock frequency.

Burst flag and VCO OUT

output for testing. When using

this pin, connect 3.3k

resistance to GND. Serves as

VCO output when mode

TEST2 is High.

During recording, outputs

chroma signal after Y/C

separation or for chroma

signal input from Pin 53.

During playback, the playback

chroma signal is output.

During ACK, the output DC

becomes 0V.

Inputs chroma signal to Y/C

MIX circuit in the I/O block.

During component signal

recording or playback, this

signal is Y/C mixed and is

then output from V OUT.

0.5mA

200

46k

54k

SAT

200

100

28k

2.05V

61 FSC OUT

62 BF VCO

63 C OUT

64 C IN

NTSC

600mVp-p

PAL

450mVp-p

550mVp-p

during VCO

output

Chroma

signal

314mVp-p

output

(during

recording)

Chroma

signal

314mVp-p

input

2.2V

During BF

output

High :

1.8V,

Low :

Low during

BF interval

2.0V

2.05V

--16--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

Composite signal input

Current consumption

during recording

Separate signal input

Current consumption

during recording

Composite signal input

Current consumption in

power saving mode

Separate signal input

Current consumption in

power saving mode

Current consumption

during playback

Internal reference voltage

source 1

Internal reference

voltage source 1

)

Internal reference

voltage source 1

Internal reference

voltage source 2

Reference current

source

SYNC AGC

input Low level

SYNC AGC

input High level

PEAK AGC

Symbol

REC1

REC2

PS1

PS2

REG

REG+

REF

AGCL

AGCH

AGCP

SG30

Amplitude

Frequency

Voltage

SW30

P58

P11

P55

P34

Measurement method

=4.75V, voltage at Pin 58 :V

REG

=4.5V, voltage at Pin 58 :V

REG1

REG

REG1

REG

=5.25V, voltage at Pin 58 :V

REG2

REG

+=V

REG2

REG

Voltage at Pin 11

IREF=(voltage at Pin 55 /18k

Measures the output SYNC level

Measures the output amplitude level

Min.

3.90

1.95

Typ.

4.13

2.08

100

143

550

Max.

113

100

120

4.36

+12

2.21

106

Unit

µA

Electrical Characteristics

= 4.75V, Ta = 25°C, see Electrical Characteristics Test Circuit and BUS DECODER Mode Condition Table.

Start measurements after adjustments in accordance with the Precautions Concerning Measurements.

(

)

Video AGC

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--17--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

For video AGC off

For video AGC on

300kHz gain for

TRAP off

300kHz gain for

TRAP on

fsc TRAP

3.58MHz gain

Hard clip amount

White clip amount

Dark clip amount

3dB

500kHz

3dB

2MHz

10dB

2MHz

20dB

2MHz

Symbol

IO1

IO2

YC1

YC2

YC3

H.C

W.C

D.C

E11

E12

E13

E14

SG30

SG5-1

SG5-2

Amplitude

Sine wave

357mVp-p

Sine wave

357mVp-p

500mVp-p

647mVp-p

500mVp-p

3dB

(354mVp-p)

10dB

(158mVp-p)

20dB

(50mVp-p)

Frequency

300kHz

/5MHz

300kHz

3.58MHz

10kHz/

500kHz

10kHz/

2MHz

Voltage

SW30

SW5-1

SW5-3

P34

P14

P39

Measurement method

Level ratio between 300kHz sine wave and

5MHz sine wave

I/O gain of 300kHz sine wave

(Refer to output waveform measurement

Nos. 14 and 15.)

Level ratio between 300kHz sine wave and

3.58MHz sine wave (Refer to output

waveform measurement Nos. 14 and 15.)

Level ratio of this signal output with

500mVp-p input and with

647mVp-p input

Measures level ratio of

each output frequency

component.

(These emphasis

characteristics include white/

dark clipping.)

Min.

1.5

10.7

11.8

15.0

19.5

Typ.

0.3

0.6

115

235

Max.

1.5

11.7

15.8

19.0

25.5

Unit

Pre-emphasis standard

frequency characteristics

I/O frequency

characteristics

Y COMB OUT frequency

characteristics

W.C

100

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

V (500kHz)

V (10kHz)

V (2MHz)

V (10kHz)

--18--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

Output level

Secondary distortion

Carrier control

minimum frequency (L)

Carrier control

maximum frequency (L)

Deviation control

minimum frequency (L)

Deviation control

maximum frequency (L)

Linearity (L)

PB Y

comb filter ATT level

HHS canceler

EDIT

MIN

MAX

Symbol

MOD

CL MIN

CL MAX

DL MIN

DL MAX

MODL

DEHHS

SHP0

SHP1

SHP2

SG3

Amplitude

30mVp-p

175mVp-p

Frequency

300kHz

300kHz/

2.15MHz

V44

V5-1

V43

V5-1

V43

V5-1

V60

Voltage

1.8V

4.75V

+0.5V

1.8V

+0.5V

4.75V

+0.25V

+0.5V

1.8V

4.75V

SW5-2

SW3-1

SW4

SW46-1

ON/OFF

SW3-1

SW4

P39

P14

P23

P14

Measurement method

Signal level with

4.2MHz output

Ratio to secondary higher harmonic

components with 4.2M output V

(8.4MHz)/V (4.2MHz)

Measures the

output

frequency

Makes initial setting of V44, applies

test 9 measurement V

+0.5V to V5-1

and then measures the output

frequency.

Makes initial setting of V44, applies

test 9 measurement V

. V

+0.25V

and V

+0.5V to V5-1 and then

calculates the following equation using

the output frequency.

+0.5V)(V

+0.25V)

+0.25V)(V

)

Measures the I/O gain under all mode

conditions.

DC level difference at P23 (Pin 23 DL

IN1) when SW46-1 is turned on and off

Measures the level ratio of P14 (Pin

14 Y COMB OUT) output between

300kHz input and 2.15MHz input.

V (2.15MHz)

V (300kHz)

Min.

440

4.2

5.4

0.9

7.8

9.3

Typ.

500

5.2

5.0

5.9

1.0

4.8

6.3

1.6

1.0

Max.

560

4.2

5.4

1.1

1.8

3.3

Unit

mVp-p

MHz

PB sharpness

frequency

characteristics

FM modulator

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--19--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

NC1

3dB

1MHz

20dB

1MHz

30dB

1MHz

NC2

30dB

1MHz

NC3

30dB

1MHz

NC4

30dB

1MHz

NC5

30dB

1MHz

Gain (L)

Linearity (L)

Gain (E)

Linearity (E)

Carrier leak

DOC Trap

Symbol

NC10

NC11

NC12

NC2

NC3

NC4

NC5

DEMOD1

DEMOD2

LDEMOD

TRAP

SG5-2

SG41

SG19

Amplitude

3dB

(354mVp-p)

20dB

(50mVp-p)

30dB

(15.8mVp-p)

200mVp-p

300mVp-p

Frequency

10kHz/

1MHz

3MHz

5MHz

7MHz

4MHz

7MHz

10MHz

4.2M

300kHz/

3.58MHz

Voltage

SW5-1

SW5-3

SW6

SW24-1

SW33

SW41

SW19

SW20

SW22

SW50

P34

P17

P23

Measurement method

Measures the level ratio of each

output frequency component.

V (1MHz)

V (10kHz)

Calculates the

V (7M)V (3M)

equations at right

7-3

with the output DC

V (7M)V (5M)

at P7 (Pin 7

V (5M)V (3M)

DEMOD OUT) for

V (10M)V (4M)

each input

104

frequency

V (10M)V (7M)

V (7M)V (4M)

Ratio of 4.2M

component of output to

input

Level ratio of P23 (pin 23 DL IN1)

between 300kHz input and 3.58MHz input

V (3.58MHz)

V (300kHz)

Min.

0.9

Typ.

2.9

6.3

6.7

5.0

2.5

4.6

115

0.96

1.02

Max.

140

1.1

Unit

MHz

Noise canceler frequency characteristics

FM demodulation

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--20--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

300kHz gain

2.5MHz frequency

characteristic

6.12MHz frequency

characteristic

300kHz gain

4.0MHz frequency

characteristic

7.8MHz frequency

characteristic

VOB

VOW

JOG VD

High

level

Low

level

Pulse width

Delay

Amplifier gain

5MHz frequency

characteristic

Symbol

GLPF11

FLPF12

FLPF13

GLPF21

FLPF22

FLPF23

VOB

VOW

OGVD

CS-H

CS-L

BUFF

SG41

SG26

SG30

SG31

SG30

SG32

Amplitude

200mVp-p

Sine wave

357mVp-p

Frequency

300kHz

2.5MHz

6.12MHz

300kHz

4.0MHz

7.8MHz

300kHz

/5MHz

Voltage

SW41

SW26

SW30

SW31

SW30

SW32

P34

P24

P34

P36

Measurement method

(300kHz I/O gain)

(compensation item G

)

V (2.5MHz)

V (300kHz)

V (6.12MHz)

V (300kHz)

(300kHz I/O gain)

(compensation item G

)

V (4.0MHz)

V (300kHz)

V (7.8MHz)

V (300kHz)

Refer to Detailed

Explanation of

Measurement

Method (2).

P24 ( 24 COMP SYNC)

P34 ( 34 YOUT)

Measures the I/O gain for a 300kHz sine wave

overlapping the Y signal.

Measures level ratio for a 300kHz sine wave and

5MHz sine wave overlapping the Y signal.

Min.

1.5

0.5

2.3

0.1

5.5

Typ.

1.0

340

2.5

0.03

4.5

0.35

6.0

Max.

1.5

2.0

2.7

0.2

0.7

6.5

Unit

µsec

Demodulation LPF frequency characteristics

Standard mode

Refer to Detailed Explanation (1).

Refer to Detailed Explanation (2).

Hi-8 mode

DDS

(Date display system)

Composite sync pulse

Video buffer

Calculates the

equations at left using

the output level of P7

(Pin 7 DEMOD OUT)

for each input

frequency.

Refer to Detailed

Explanation of

Measurement Method

(1) for compensation

values GC1 and GC2.

The amplitude

frequency indicated for

the input conditions is

the value of SG54 in

SG41.

Measures the DC

level difference with

the pedestal level.

Measures the DC

level difference with

the sync tip level.

-
L

-
H

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--21--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

C OUT LEVEL 1

(REC)

C OUT LEVEL 2

(S·REC)

Gain

Maximum

gain

Minimum

gain

Burst emphasis

level

0dB

+500kHz

0dB

+500kHz

10dB

+500kHz

10dB

ACK OFF

ACK ON

Symbol

COUT1

COUT2

CENACC

MAXACC

MINACC

CE1

CE11

CE12

CE2

CE21

CE22

ACK OFF

ACK ON

SG30

SG53

Amplitude

Sine wave

314mVp-p

143mVp-p

10mVp-p

363mVp-p

143mVp-p

VC=

314mVp-p

VC=

99.3mVp-p

20mVp-p

2mVp-p

Frequency

3.58MHz

4.08MHz

3.08MHz

3.58MHz

4.08MHz

3.08MHz

3.58MHz

Voltage

SW30

SW53

SW24-1

SW24-2

SW53

SW24-1

SW24-2

SW53

SW24-1

SW24-2

SW53

SW24-1

SW24-2

SW53

P63

Measurement method

Measures the I/O level ratio for 3.58MHz

sine wave.

Measures the I/O level ratio.

Until measurement No. 126, input signal

I from SG24.

Measures the level ratio between the output

burst interval and the chroma interval.

Measures the output level for the input

frequency of the chroma interval. V

CE1

Measures the ratio between V

CE1

and the

output level for the input frequency of the

chroma interval.

Measures the output level for the input

frequency of the chroma interval. V

CE2

Measures the ratio between V

CE2

and the

output level for the input frequency of the

chroma interval. Measures the output DC

level.

Min.

1.5

3.3

5.0

200

1.4

1.7

Typ.

0.3

1.3

9.5

6.0

270

1.0

3.0

2.0

Max.

1.5

0.7

7.0

360

2.6

120

5.4

2.3

200

Unit

mVp-p

ACC AMP

C OUT DC

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

Chroma emphasis characteristics

--22--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

Measurement item

REC C RF

LEVEL

REC Chroma band1

(750kHz)

REC Chroma band2

(300kHz)

REC Chroma band3

(+300kHz)

REC Chroma band4

(+650kHz)

Upper

pull-in range

Lower

pull-in range

Upper

pull-in range

Lower

pull-in range

Upper

pull-in range

Lower

pull-in range

Upper

pull-in range

Lower

pull-in range

Symbol

RECC

RECC1

RECC2

RECC3

RECC4

APCRN+

APCRN

APCRP+

APCRP

AFCN+

AFCN

AFCP+

AFCP

SG53

SG24

Amplitude

VC=

314mVp-p

143mVp-p

Frequency

3.58MHz

2.83MHz

3.28MHz

3.88MHz

4.23MHz

3.58MHz

4.43MHz

+DHz

4.43MHz

16.206kHz

(+3%)

15.262kHz

(3%)

16.094kHz

(+3%)

15.156kHz

(3%)

Voltage

SW24-1

SW24-2

SW53

SW24-1

SW24-2

SW53

SW24-1

SW24-2

SW51

SW53

SW57

SW59

SW24-1

SW24-2

SW62

P61

P62

Measurement method

Measures the output level of the

chroma interval. V

RECC

Measures the ratio between V

RECC

and the output level for the chroma

interval.

The output frequencies of 3.58MHz +

kHz are converted to

743kHz

kHz for frequency

conversion.

Upper input frequency pulled in within

2 seconds by the SG53 input

frequency (3.58MHz+1kHz).

Lower input frequency pulled in within

2 seconds by the SG53 input

frequency (3.58MHz3kHz).

Upper input frequency pulled in within

2 seconds by the SG53 input

frequency (4.43MHz +

1kHz).

Lower input frequency pulled in within

2 seconds by the SG53 input

frequency (4.43MHz3kHz).

Measures the output frequency one

second later after switching the mode

conditions.

Min.

210

230

200

Typ.

300

2.0

2.5

1.0

6125979

5769126

6035156

5683594

Max.

420

230

200

Unit

mVp-p

Rec APC Pull-in

Range (NTSC)

Rec APC Pull-in

Range (PAL)

Rec AFC Pull-in

Range (NTSC)

REC AFC Pull-in

Range (PAL)

Rec C RF Level

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--23--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

100

101

102

103

104

105

106

107

108

Measurement item

PB C OUT

level

PB chroma band 1

(650kHz)

PB chroma band 2

(300kHz)

PB chroma band 3

(+300kHz)

PB chroma band 4

(+1.2MHz)

Gain difference

between channels 1-2

Gain difference

between channels 1-3

Gain difference

between channels 1-4

High-speed ACC

compression ratio

Burst de-emphasis level

Frequency deviation

Output level

Secondary distortion

Symbol

PBCO

PBC1

PBC2

PBC3

PBC4

CH12

CH13

CH14

ACC

XON

2XON

a/k

SG45

SG46

SG53

SG45

Amplitude

VC=

200mVp-p

1.4Vo-p

200mVp-p

Frequency

743kHz

100kHz

443kHz

1043kHz

1.9MHz

743kHz

50Hz

743kHz

Voltage

SW16

SW18

SW24-1

SW24-2

SW45

SW16

SW18

SW24-1

SW24-2

SW45

SW46-1

SW46-2

SW24-1

SW24-2

SW53

SW16

SW18

SW24-1

SW24-2

SW45

P63

P61

Measurement method

Measures the output level of the

chroma interval. V

PBCO

Measures the ratio between V

PBCO

and the output level of the chroma

interval.

The output frequencies of 743kHz

kHz are converted to

3.58MHz

kHz for frequency

conversion.

Refer to Detailed Explanation of

Measurement Method (3). Measures

the gain difference between channels.

Refer to Detailed Explanation of

Measurement Method (4).

Measures the level ratio between the

burst interval and the chroma interval

of output.

Difference between output frequency

and

SCN

=3579545Hz.

XON

SCN

Measures the output level.

Ratio with secondary higher harmonic

component.

V (7.16MHz)/V (3.58MHz)

Min.

130

0.5

5.5

450

Typ.

200

2.4

0.5

2.3

0.6

4.5

600

Max.

300

0.5

3.0

3.5

750

Unit

mVp-p

PB C OUT Level

PB ACC gain differencebetween channels

XO characteristics (NTSC)

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--24--

CXA1700AQ/AR

Input conditions

Control DC

Ratings

No.

109

110

111

112

113

114

115

116

117

Measurement item

Frequency deviation

Output level

Secondary distortion

Upper

pull-in range

Lower

pull-in range

Upper

pull-in range

Lower

pull-in range

Delay

Pulse width

Symbol

XOP

HD2

XOP

APCN+

APCN

APCP+

APCP

SG45

SG24

SG45

SG24

SG45

SG24

SG45

SG24

SG5-1

Amplitude

200mVp-p

Frequency

765.747kHz

(+3%)

16.206kHz

(+3%)

721.141kHz

(3%)

15.262kHz

(3%)

754.395kHz

(+3%)

16.094kHz

(+3%)

710.449kHz

(3%)

15.156kHz

(3%)

Voltage

SW57

SW59

SW16

SW18

SW24-1

SW24-2

SW45

SW62

SW16

SW18

SW24-1

SW24-2

SW45

SW51

SW57

SW59

SW62

SW5-1

SW24-1

SW24-2

SW62

P61

P62

Measurement method

Difference between output frequency

and

SCP

= 4433619Hz.

XOP

SCP

Measures the output level.

Ratio with secondary higher harmonic component.

V (8.86MHz)/V (4.43MHz)

Measures the output frequency one

second later after switching the mode

conditions.

Min.

320

3.5

3.3

Typ.

460

6125979

5769126

6035156

5683594

4.1

4.3

Max

650

4.7

5.3

Unit

mVp-p

µsec

XO characteristics (PAL)

PB APC

Pull-in Range (PAL)

Burst Flag

PB APC

Pull-in Range (NTSC)

24 (

24 C

)

62 (

62 B

)

Signal

source

Voltage

source

Mode

Measu-

set to

condi-

rement

tions

point

--25--

CXA1700AQ/AR

Electrical Characteristics Test Circuit

R17

5600

C18

10µ

22µH

3300

(

1% )

C26

47µ

C25

10µ

C24

47µ

R10

47k

C23

10µ

C22

47µ

C21

01µ

C20

10µ

C19

100µ

24-2

24-1

C17

10µ

C16

3µ

C14

3 µ

C15

10µ

16 2.

15 3v

C13 10µ

C12 10µ

C11 0.

01µ

C10 10µ

C9 47µ

C8 470p

37v

47µ

220p

-1

1200

47µ

390 (

1%)

470

(

1%)

C4 150p

C3 150p

C2 330p

C1 390p

C45

10µ

C44

01µ

C43

1000p

(PAL

)

R19

C41

82p

C42

01µ

R18

18k

C40

1µ

R16

3900

R15

6800

C38

68µ

0.022µ

C36

C39

1000p

C33

1µ

C35

6800p

C34

330p

µ-

46-

46 1.

C32

100p

C31 0.

01µ

C30 10µ

R14

R12

R11

C28 220

C29 2.

2 µ

C27

1µ

1200 (

1%)

1700A

C37

R13

--26--

CXA1700AQ/AR

Input signal

Signal

Input signal waveform

Signal

source

SG3

SG5-2

SG19

SG41

SG45

SG53

SG5-1

SG30

SG32

SG30

Frequency f (Hz)

Amplitude
V (mVp-p)

100% white
SYNC 0dB

357mV

143mV

1.5µsec

4.6µsec

4.5µsec

63.5µsec

71.5mV

SYNC 6dB

286mV

SYNC +6dB

357mV

71.5mV

100% white
SYNC 6dB

0.4µsec

4.6µsec

2.2µsec

210mVp-p

3.58MHz

143mV

SYNC 0dB With color burst

141% white
SYNC 0dB

504mV

143mV

50% white
Overlapping sine
wave
SYNC 0dB

Frequency f (Hz)

178.5mV

143mV

Sine wave
amplitude
357mVp-p

Signal

Input signal waveform

Signal

source

SG53

SG45

SG24

SG53

SG45

SG46

Burst signal V

(3.58MHz/143mVp-p)

Chroma signal VC(fHz/VmVp-p)

90° phase shift

f(Hz)/V(mVp-p)

90°

0°

90°

V in MIN

V in MAX

fsc/143mVp-p: 60Hz, 35% AM modulated

100 = 35%

V in MAX V in MIN
V in MAX +V in MIN

PBC RF signal

Chroma signal
(fHz/200mVp-p)

Burst signal V

(743kHz/200mVp-p)

10m sec

1.4V

180° phase inversion

f(Hz)/V(mVp-p)

180°

0°

180°

4.7µsec

1H(NTSC)63.56µsec: 15.734kHz

2.5V

--27--

CXA1700AQ/AR

Detailed Explanation of Measurement Method

(1) DEMOD LPF frequency characteristics measurement

Using the CXA1207A as a modulator, the configuration for SG41 is shown below.

First, without inputting SG54, adjust V

CAR

so that the Y RF OUT (Pin 43) output frequency of the

CXA1207A is 5MHz. Use V

CARO

for the V

CAR

voltage. Next, apply V

CARO

+ 500mV, measure the Y RF

OUT (Pin 43) output frequency fo of the CXA1207A, and then calculate the MOD gain using the following

equation.

GMOD =

fo (MHz)5 (MHz)

500 (mV)

The compensation values are derived from GMOD and from GDEMOD1 and GDEMOD2 of measurement

Nos. 48 and 50.

Standard mode compensation value : G

= 20log [G

MOD

(MHz/mV) x G

DEMOD1

(mV/MHz)]

Hi-8 mode compensation value :

= 20log [G

MOD

(MHz/mV) x G

DEMOD2

(mV/MHz)]

Next, in order to set the SG41 carrier frequency, adjust V

CAR

so that the Y RF OUT (Pin 43) output of the

CXA1207A in standard mode is 4.8MHz and in Hi-8 mode is 6.7MHz.

In the above state, measure the I/O gain for the SG54 (200mVp-p/300kHz) input and P7 (Pin 7 DEMOD

OUT), with the gain for standard mode being G

LPF10

and for Hi-8 mode G

LPF20

Using these measured values and compensation values, the low frequency gain for DEMOD LPF is

determined using the following equations:

Standard mode :

LPF11

= G

LPF10

- G

(dB)

Hi-8 mode :

LPF21

= G

LPF20

- G

(dB)

CXA1207A

REC MODE

SW41

YRFIN

LIM

DEMOD

LPF

DEMOD
OUT

CXA1700A to be measured

CAR

1µ

4700

SG54

CAR

(SG41)

YRFOUT

FM
MOD

--28--

CXA1700AQ/AR

(2) DDS measurement

When a pulse with the following timing is input, the output from P34 (Pin 34 Y OUT) becomes as shown

below; measures each DC differential.

(3) Measurement of gain difference between PB ACC channels

The ACC amplifier in the CXA1700 has a built-in 4-channel time constants, and those time constants can

be switched by SWP (Pin 46) input. In addition, in NTSC playback chroma signal processing, PI return

occurs in the SWP (Pin 46) input for Low interval. In this measurement, the signal k, that is phase-inverted

each 1H, is input to PBC IN (Pin 45) for the Low interval of SWP; the continuous wave of the signal is

input for the High interval of SWP.

In this case, measure each channel level V

, V

,and V

of output P63 (Pin 63 C OUT) and calculate

the gain difference between channels using the following equations:

CH12

CH13

CH14

P34 (Pin 34 Y OUT) output

SG26 (Pin 26 DDS/MASK input)

SG30 (Pin 30 VIN1 input)

357mV

143mV

100% white
Y signal

1.5V

VOB

VOW

JOGV

SG31 (Pin 31 RECL/JVD input)

Pedestal level reference

Sync tip level reference

--29--

CXA1700AQ/AR

SIGNAL a

SIGNAL k

CXA1700 to be measured

PB C
LPF

ACC
AMP

ACC
DET

ACC
CH HOLD

PB C IN

SWP

V46

SW45

C32
100p

SG46

(SG45)

C OUT

P63

P63 (Pin 63 C OUT output)

SG 46 (Pin 46 SWP input)

SIGNAL a

10m Sec

SIGNAL k

SIGNAL a

SIGNAL k

SG45 (Pin 45 PB C IN input)

200mVp-p/743kHz

P8 (Pin 8 REC C OUT output)

SG53 (Pin 53 EXT CIN input)

INMIN

INMAX

0MIN

0MAX

ACC

20log V

OMAX

OMIN

(4) High-speed ACC compression ratio measurement

Measure the high-speed ACC compression ratio in JOG mode by inputting a modulation wave as shown

below.

--30--

CXA1700AQ/AR

BUS DECODER Condition Table for Measuring Electrical Characteristics

(Blanks indicate Low)

TEST2

TEST1

SYNC OFF

CORRE H

SHP THROU

ACK OFF

FBC L2

C SEL

DC2

DC1

C MUTE OFF

PAL

CAMREC

NCLP2

NCLP1

NCL2

NCL1

CFL2

CFL1

FBC L1

JOG

EDIT

CCIR

WCCD

MUTE

Video AGC

INSEL

Mode

condition

Description

Composite REC 9Video AGC OFF)

Composite REC (Video AGC ON)

Separate REC

Composite REC power save

Separate REC power save

Normal PB

Y comb OUT f characteristics

Y pre-emphasis characteristics

PB Y comb filter ATT level

PB sharpness characteristics

Noise canceler frequency

characteristics

Hi-8 demodulation characteristics

C OUT level (REC)

C OUT level (S/REC)

ACC, BE, CE characteristics

REC C measurement 9NTSC)

REC C measurement (PAL)

REC AFC pull-in range

(NTSC)

REC AFC pull-in range

(PAL)

PB C measurement

High-speed ACC compression ratio

PB APC pull-in range

(NTSC)

PB APC pull-in range

(PAL)

--31--

CXA1700AQ/AR

Precautions Concerning Measurements (Refer to Electrical Characteristics Test Circuit).

1. Start measurements after making the following adjustments.

1) Recording level (video AGC) adjustment

With the SW conditions (SW30: on) and the mode conditions: B the same as for measurement Nos.

11 to 13, adjust V31 so that the P34 (Pin 34 Y OUT) output is 500mVp-p when signal b (100% white,

500mVp-p Y signal) is input from SG30.

2) CAR adjustment (normal)

With the SW conditions at the initial settings and the mode conditions: A, adjust V44 so that the

frequency of the P39 (Pin 39 Y RF OUT) output is 4.2MHz.

3) Chroma emphasis adjustment

With the SW conditions (SW24-1, SW24-2, SW53: on), and the mode conditions: P the same as for

measurement Nos. 75 to 80, adjust V1 so that the signal level for the chroma interval of the P8 (Pin 8

REC C OUT) output is at a minimum when signal l is input from SG24 and signal i is input from SG53.

(chroma interval 3.58MHz/99.3mVp-p)

2. Although no input conditions are indicated for C measurement Nos. 71 to 117, signal l is input from SG24.

Unless otherwise specified in the input conditions, the frequency for SG24 is 15.734kHz.

3. Note that in regards to the measurements shown below, the characteristics change depending on the

floating capacitance.

White/dark clipping level

Pre-emphasis characteristics

REC APC pull-in range

4. When taking measurements, use metal film resistors with an allowable deviation of 1% for R1, R2, R3, and

R5, and use temperature compensation CH types for C1, C2, C3, and C4.

--32--

CXA1700AQ/AR

BUS DECODER

1) Data contents

TEST2

TEST1

SYNC

OFF

CORRE H

SHP

THRU

ACK OFF

F.B.C. L2

(Feed

Back Comb)

C SEL

TEST2

1) Outputs VCO OUT signal to BF VCO

(Pin 62).

2) Outputs white/dark-clipped Y

signal to Y REF OUT (Pin 39).

Normal

TEST1 mode

1) Cuts APC loop and inputs signal from

CAM FSC SHP (Pin 60) to VCO OUT.

2) During REC, outputs burst emphasis

output to REC C OUT (Pin 8).

3) For the PB chroma feedback comb

measurement, inputs signal from EXT

C IN (pin 53) to the comb block without

passing it through PB CONV.

Normal

Sync Separation does not operate.

(External input to COMP SYNC (Pin 24) is

possible).

Normal

Fixes the correlation pulse High so that

there is always correlation.

Detects correlation.

Sharpness block through (does not pass

through fsc Trap, Sharpness, LPF and

EQ)

Normal

ACK SW does not operate according to

ACK DET; always fixed to color mode.

ACK operation is performed according to

ACK DET.

Switches the feedback amount of the FBC

(feedback comb).

Refer to Table 1.

During recording, the signal input to EXT

C IN (Pin 53) is input directly to the ACC

amplifier.

Normal

bit

No.

MODE

CONTENT

DC 2

(Dark Clip)

DC 1

C MUTE

OFF

PAL

CAM REC

(Power

Save)

The dark clipping level is switched as

shown below. (when white clipping is

235% and WDC (Pin 27) is left open)

(UNIT: %)

Switches the amount of the dark clipping

level offset to the white clipping level,

which can be varied in steps of 10%.

Disables MUTE for the chroma signal by

the MASK signal.

Mutes the chroma signal by the MASK

signal.

PAL (chroma function)

NTSC

During recording, inputs fsc, locked to

burst, from CAM FSC SHP (Pin 60)

without performing APC with the input

chroma signal, and then performs

frequency conversion using this fsc.

Recordable time can be reduced to 0.2

seconds or less from power saving mode

with separate input.

Normal

1) S·PS (31.S=Low)

Changes to power saving mode with

composite input. Power consumption:

140mW (V

=4.75V)

2) S·PS (31.S=High)

Changes to power saving mode with

separate input. Power

consumption:250mW (V

=4.75V)

Normal

Performs Yd playback during playback.

Normal

High

Low

High

Low

105

115

DC 1

DC 2

bit

No.

MODE

CONTENT

--33--

CXA1700AQ/AR

NCLP2

NCLP1

NCL2

NCL1

CFL2

CFL1

F.B.C. L1

JOG

EDIT

CCIR

W CCD

MUTE

During playback, switches the noise

canceler characteristics.

The typical value of PB Y comb filter

depth is switched as shown below.

(Low frequency: insignificant level input)

Hi-8 mode

Standard mode

Switches the feedback amount of the

chroma feedback comb.

Refer to Table 1.

1) High-speed ACC mode.

2) During playback, does not perform

dropout compensation.

Normal

EDIT mode

1) During recording, the chroma signal is

Y/C separated by the BPF only without

passing though the comb filter.

2) During playback, cuts the feedback

loop of chroma feedback comb.

3) During playback, makes the sharpness

characteristics flat.

Normal

For fsc = 4.43MHz

For fsc = 3.58MHz

Fix to Low.

1) Mutes the Y and chroma signals.

2) Discharges the charge in the external

clamp capacitance for VIN1 (Pin 30)

and VIN2 (Pin 28) and in the external

capacitance for AGC TC1 (Pin 29).

Normal

bit

No.

MODE

CONTENT

Video AGC

INSEL

(INput

SELection)

Video AGC on

Video AGC off

Selects VIN2 (Pin 28) input.

Selects VIN1 (Pin 30) input.

For separate signals during recording.

For composite signals during recording.

Playback mode

Recording mode

bit

No.

MODE

CONTENT

High

Low

High

10dB

6dB

Low

1.5dB

0dB

CFL1

CFL2

Table 1. Chroma Feedback Comb Loop Gain

F.B.CL1

Low

High

F.B.C

Low

0dB

+1.9dB

High

+4.8dB

+6.7dB

--35--

CXA1700AQ/AR

BUS DECODER Mode Condition Table (NTSC)

Note

Don't care "

". In addition, select for the blank SHP THRU column based on the system configuration;

for other blanks according to the characteristics.

TEST2

TEST1

SYNC OFF

CORRE H

SHP THROU

ACK OFF

FBC L2

C SEL

DC2

DC1

C MUTE OFF

PAL

CAMREC

NCLP2

CAMERA

VTR

STAND-BY

REC

EDIT

REC

RCA

Normal

EDIT

Standard

Hi-8

Standard

Hi-8

Standard

L L L L

L L H H L *

L L L L

L L H L L *

L L L L

L L L L L

L L L L

L L L L L *

L L L L

L L L L L *

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

L L L L

L L L L L

NCLP1

NCL2

NCL1

CFL2

CFL1

FBCL1

JOG

EDIT

CCIR

WCCD

MUTE

Video AGC

INSEL

CAMERA

VTR

STAND-BY

REC

EDIT

REC

RCA

Normal

EDIT

Standard

Hi-8

Standard

Hi-8

Standard

L L L L L H H H L

H H L L L

L L L L L H H H L

L L L L L H L L L

L L L L L

L H L L L

--36--

CXA1700AQ/AR

Description of Operation

Signal path during composite recording

Composite signals input from VIN1 (Pin 30) and VIN2 (Pin 28) are selected by mode INSEL, passed through the VIDEO AGC, and Y/C separated by the

comb filter. The Y signal is output to Y COMB OUT (Pin 14). Next, level adjustment is performed externally and then the signal is input to EMPH IN (Pin

5), after which hard clipping, emphasis, white/dark clipping, and FM modulation are performed and then the signal is output from Y RF OUT (Pin 39). In

addition, the Y OUT (Pin 39). In addition, the Y OUT (Pin 34) signal is input to Y IN (Pin 32), and then the monitor signal is output from VIDEO OUT (Pin

36).

On the other hand, Y/C-separated C signal passes through the BPF and then along with being output to C OUT (Pin 63), the signal is also passed through

ACC, chroma emphasis, and burst emphasis, low frequency converted, is passed though a LPF and then output from REC C OUT (Pin 8).

Y R

SMEAR

EVI

W/D

MAI

EMPH

CLP

SYN

SEP

CLP

DDS

CLP

CCD

Y C

I
N

Y O

Y I

I
D

O OU

EMPH

C I

C O

EXT

BPF

CHRO

EMPH

C C O

EMPH

+ +

Pin No.

28 30 34 32 23 21

Signal

waveform

14 5

0.5Vp-p

2.0Vp-p

0.5Vp-p

0.32Vp-p

0.3Vp-p

--37--

CXA1700AQ/AR

Signal path during playback

The playback Y RF signal, after having passed though RF AGC and a soft limiter, is input to Y RF IN (Pin 41). After FM demodulation, the signal passes

through the LPF and is then output from DEMOD OUT (Pin 7). After the waveform is formed and the level is adjusted by an external EQ and peaking

amplifier, the signal is input to DE EMPH IN (Pin 10), after which clipping compensation, de-emphasis and HHS cancellation are performed. Next, cross

talk cancellation is performed by a comb filter and then the signal is output from Y COMB OUT (Pin 14). After the waveform is formed and the level is

adjusted by an external EQ (LPF) and peaking amplifier, the signal is input to 5 EMPH IN, where it passes through a noise canceler and is then output from

Y OUT (Pin 34).

On the other hand, the playback RF signal, after passing through AFM and ATF TRAP, is input to PBC IN (Pin 45), after which the low-frequency C signal

is separated by the PBC LPF. Next, the playback C signal, which has undergone level control by the ACC and frequency conversion by PB CONV and

PBC BPF, is subjected to cross talk cancellation by the comb filter, and then after undergoing burst de-emphasis and chroma de-emphasis, the signal is

output from C OUT (Pin 63).

By inputting the playback Y signal (Y

OUT (Pin 34) output) to Y IN (Pin 32) and the playback C signal C(C OUT (Pin 63) output) to C IN (Pin 64), the Y/C

mixed signal is output from VIDEO OUT (Pin 36).

DDS

HHS

NCE

MAI

EEM

CLI

eak

ing

CCD

BPF

EEM

CHRO

EEM

CLP

eak

ing

CLP

Y O

Y I

NCT

Y C

C O

C I

EEM

D O

PBC

CLP

PBC

BPF

EMO

Pin No.

Signal

waveform

7 10

14 5 34 32

63 64

23 21 19

; 0.5Vp-p

; 2Vp-p

23 21

19 36

0.2Vp-p

0.17Vp-p

0.5Vp-p

0.3Vp-p

--38--

CXA1700AQ/AR

3. REC LEVEL adjustment

The video signal input to VIN1 (Pin 30) and VIN2 (Pin 28) is selected by mode INSEL, and when mode

video AGC is High, the signal is passed through SYNC AGC and PEAK AGC and then is output from Y

OUT (Pin 34). The output level can be adjusted by applying an external DC bias (1.3 to 2.6V [Vcc =

4.75V]) to RECL/JVD (Pin 31). In the case of white 100%, 500mVp-p input, the following are the standard

characteristics.

4. MASK DDS

DDS/MASK (Pin 26) is the VOW (character level) signal and the VOB (character background) and

masking timing pulse input pin. The threshold value for source signal and VOB/masking is 1.1V, and the

threshold value for VOB/masking and VOW is 2.0V (when Vcc = 4.75V). In addition, the VOW replacement

signal level can be varied within the range of the DC level (2.3V to 3.0V) for this pin; those standard

characteristics are shown below.

3.0

400

1.0

500

600

(mVp-p)

1.5

2.0

2.5

Y OUT (Pin 34) output level

REC L/JVD (Pin 31) control DC (V)

3.0

2.0

100

(%)

2.5

( V

=4.75V)

MASK/DDS (Pin 26) DC level

Y OUT (Pin 34) replacement

signal luminance level

--40--

CXA1700AQ/AR

6. Carrier/deviation adjustment

The Y FM modulation carrier frequency is adjusted by applying an external DC bias to CARR CONT (Pin

44). When carrier adjustment is performed, gm1 and gm2, the deviation/smear gain, change in proportion

to IXCAR at the same time. This results in the FM modulator sensitivity being roughly adjusted for the Dev

IN/Sme IN signal level. Fine adjustment of the deviation frequency is accomplished by the DC bias applied

to DEV CONT (Pin 43).

CARR CONT

YRFOUT

XCAR

Carr
Cont

FM
Mod

LIM

XDEV

XSME

Dev IN

Sme IN

Smear
Cont

Dev
Cont

DEV CONT

SMEAR
CONT

gm1=K

XDEV

gm2=K

XSME

--41--

CXA1700AQ/AR

6-1. Carrier frequency adjustment

The standard characteristics of carrier frequency for the CARR CONT (Pin 44) DC bias (1.8V to Vcc)

when bias was applied to EMPH IN (Pin 5) with VG1 are shown below.

6-2. Deviation frequency adjustment

The standard characteristics of deviation frequency for the DEV CONT (Pin 43) DC bias (1.8V to Vcc)

when bias was applied to EMPH IN (Pin 5) with VG1 + 0.5V after carrier frequency adjustment are shown

below.

(MHz)

=4.75V)

CARR CONT (Pin 44) DC level (V)

Y RF OUT (Pin 39) carrier frequency

DEV CONT (Pin 44) DC level (V)

Y RF OUT (Pin 39) deviation frequency

1.0

2.0

(MHz)

=4.75V)

1.5

--42--

CXA1700AQ/AR

7. Chroma emphasis fo adjustment

The center frequency of the chroma emphasis characteristics is adjusted by the DC bias (1.8V to 3.8V

[Vcc = 4.75V]) applied to CE CONT (Pin 1). The standard characteristics of center frequency for the CE

CONT (Pin 1) DC level are shown below.

8. ACC/ACK standard characteristics

REC C OUT (Pin 8) (mode test 1: High)

/chroma emphasis fo

100k

+100k

(Hz)

=4.75V)

fsc

CE CONT (Pin 1) DC level (V)

EXT C IN (Pin 53) input level

(dB)

(143mVp-p=0dB)

ACK OFF

REC C OUT (Pin 8) output level

(0dB output for 143mV input)

ACK ON

--43--

CXA1700AQ/AR

9. Y cross talk cancellation

De-emphasized playback Y signal is input to the comb block. By passing the differential component of the

nH signal and the (n+1)H signal through the limiter, the cross talk component, which is line noncorrelation,

is extracted. Cross talk cancellation is accomplished by subtracting this cross talk component from the nH

playback Y signal.

In addition, by switching mode CFL1 and CFL2, the comb depth characteristics of PBY cross talk

cancellation can be changed . The standard characteristics of comb depth for low frequency

(approximately 1MHz) and insignificant input level (MAIN EMPH TC (Pin 3) 7.9mVp-p = 30dB) input are

shown below.

CCD

LPF

DL OUT2

DL IN1

TRAP

LIM

ATT

CLAMP2

VCA2

CFL1
CFL2

OUT

DOC
TRAP

Playback Y

Playback C

C comb

PB Y Comb Depth

CFL1

High

Low

CFL2

High

10dB

6dB

Low

1.5dB

0dB

--44--

CXA1700AQ/AR

10. PB C cross talk cancellation

The playback C signal which passes through the BPF is input after frequency conversion. The feedback

chroma comb filter is configured as shown above.

By switching mode FBCL1 and FBCL2, the feedback loop gain from the Y comb is changed as shown

below.

Feedback loop gain

When the feedback loop gain is increased the S/N ratio can be improved, but note that color smear in the

vertical direction and transient response get worse.

CCD

LPF

ATT

CLAMP1

VCA1

HPF

FBCL1
FBCL2

OUT

NOCORRE + EDIT + BF

ACK · BF

DL OUT1

DL IN1

Playback C signal

Playback Y

C comb

Y comb

227

228

Feedback loop
gain is large

During editing

FBCL1

High

Low

FBCL2

High

6.7dB

4.8dB

Low

1.9dB

0dB

--45--

CXA1700AQ/AR

11. PB Y noise cancellation

When an external HPF is configured as shown below, the standard characteristics of PB Y noise

cancellation are as shown below, depending on the switching of input signal level, mode NCL1/2, external

HPF and NCLP1/2.

1) Changes in frequency characteristics due to the input level

CLP

MUTE

DDS

EMPH IN

CLP

LIM

LPF

ATT

NC TC IN

VGI

2.37v

500mVp-p
=0dB

NCLP1 NCLP2

NCL1 NCL2

Y OUT (Pin 34)/EMPH IN (Pin 5) I/O

gain

10k

3dB

100k

10M

(dB)

10dB

Input frequency (Hz)

20dB

30dB

NCL 1, 2 = H, H

NCLP 1, 2 = H, H

External HPF (1k

/82pF)

--46--

CXA1700AQ/AR

2) Changes in frequency characteristics due to switching of mode NCL1/2

3) Changes in frequency characteristics due to switching of external HPF and mode NCLP1,2

10k

L, L

100k

10M

(dB)

H, L

H, H

L, H

Y OUT (Pin 34)/EMPH IN (Pin 5) I/O gain

Input frequency (Hz)

NCLP 1, 2 = H, H

External HPF (1k

/82pF)

External HPF

/220pF

/82pF

10k

100k

10M

(dB)

NCLP1

NCLP2

Y OUT (Pin 34)/EMPH IN (Pin 5) I/O gain

Input frequency (Hz)

NCL 1, 2 = H, H

The following four conditions are compared:

--48--

CXA1700AQ/AR

Adjustment Procedure (Refer to Application Circuit.)

1. REC Y level adjustment

Mode :

REC, 29 video AGC = High

Input signal :

color bar 500mVp-p (Pin 30 V IN1)

Adjustment method :

When VIDEO OUT (Pin 36) is terminated with 75

, adjust RV105 (EE LEVEL) so

that the output is 1Vp-p.

2. Y/C separation adjustment

Mode:

REC, 5 SHP THRU = High

Input signal :

color bar 500mVp-p (Pin 30 V IN1)

Adjustment method :

Adjust RV110 (YC.SEP)

RV103 (COMB.ADJ)

RV110 (YC.SEP) in turn so that

the residual chroma component at Y COMB OUT (Pin 14) is minimum.

3. Emphasis input Y level adjustment

Mode :

REC

Input signal :

color bar 500mVp-p (Pin 30 V IN1)

Adjustment method :

Adjust RV112 (EMPH.Y.LEV) so that the Y signal level at EMPH IN (Pin 5) is

500mVp-p.

4. Y-FM carrier deviation adjustment

Mode :

REC, 22 E = Low (standard mode)

Input signal :

100% white, 500mVp-p (Pin 30 V IN1)

Adjustment method :

While monitoring the Y RF OUT (Pin 39) signal with a spectrum analyzer, adjust

RV108 (CARR) so that the H SYNC spectrum (carrier) is 4.2MHz in standard mode,

and adjust RV107 (DEV) so that the 100% white Y level spectrum is 5.4MHz in

standard mode.

5. Chroma emphasis fo adjustment

Mode :

REC, 2 TEST1 = high

Input signal :

color bar 500mVp-p (Pin 30V IN1)

Adjustment method :

Adjust RV102 (CEMPH) so that the level of the flat portion of the chroma signal

after burst emphasis output to REC C OUT (Pin 8) is minimum.

6. PB Y level 1 adjustment

Mode :

Input signals :

PB Y RF 200 =mVp-p (Pin 41 Y RF IN)

Adjustment method :

Adjust RV111 (PB.Y.LEV1) so that DL IN 1 (Pin 23) Y signal level is 500mVp-p.

7. PB Y level 2 adjustment

Mode :

Input signal :

PB Y RF 200mVp-p (Pin 41 Y RF IN)

Adjustment method :

When VIDEO OUT (Pin 36) is terminated with 75

, adjust RV113 (PB.Y.LEV2) so

that the output is 1Vp-p.

Note on Operation

· Connect NC (Pin 17) to GND directly.

· I REF (Pin 55) resistance 18k, determines the reference current. Employ a metallic film resistance and of

allowable difference ±1%.

--49--

CXA1700AQ/AR

Application circuit

(NTSC NORMAL)

C205

110

131

R111

102

10k

220

104

DEV

I
T

FFE

L201

10µ

C204

3.3

0.01

C206

3.3

C207

0.01

R202

82k

R203

C208

0.1

L202

10µ

C209

3.3

C210

0.01

211

R V

110

SEP

115

116

R112

R113

R V

105

47k

110

47k

C111

C113

R114

C112

0.47

C114

0.47

R120

C115

C116

0.01

C117

C119

3.3

C118

C120

C121

3.3

C201

R201

C202

0.01

C203

130

103

47k

131

133

132

134

135

136

470p

130

132

137

220p

138

113

3300

134

470

139

330p

140

390p

R135

1.2k

150

1000p

R V

102

47k

C151

0.01

R V

120

C152

C153

0.01

C155

82p

C154

0.01

L150

R150

18k

C157

1000p

C156

R151

R152

R153

5600

C158

0.68

C159

0.022

R154

6800

C160

C161

330p

101

10k

103

10k

108

47k

156

101

102

L101

47µ

105

106

104

R105

103

SHP

XT AL

R V

113

R V

112

R V

111

110

CCD O

SEP

Y EQ

75V

SYN

DDS

ASK

OG V

C Y

C C RF

PB R

HCHG

VA SW

I
N

I
D

O OU

L5502

EE L

EVEL

1700A

106

100p

PB Y L

EV1

PB Y L

EV2

Y L

155

107

47k

1112

7
6
5

4
3
2
1

VSS

V DD

VCO

PCO

V DD

CLK

SIG

I/01

I/02

VSS

VCO

O U

22µ

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for

any problems arising out of the use of these circuits or for any infringement of third party and other right due to same.

--50--

CXA1700AQ/AR

Application circuit

(PAL NORMAL)

R V

120

130

75V

R V

113

LLF L

PBCIN

F B

/JOG

SECAM

GAIN

CIN

APCL

COUT

7
6

5
4
3

2
1

I
T

FFE

102

10k

101

10k

103

10k

108

47k

101

102

L101

47µ

105

106

104

R105

104

220

103

C160

C151

0.01

C152

C153

0.01

R150

18k

C157

1000p

C156

R151

R152

R153

C158

0.68

C159

0.022

R154

3900

C161

6800p

SHP

XT AL

C150

1000p

R V

102

47k

130

103

47k

131

133

132

134

135

136

470p

131

132

137

220p

138

133

3300

134

470

139

330p

140

390p

R135

1.2k

R122

R113

R V

105

47k

110

47k

C111

R112

C113

R114

R120

110

C112

0.47

C114

0.47

C115

C116

0.01

C117

C119

3.3

C118

C120

C121

3.3

C201

R201

1M C

202

0.01

212

10k

L201

10µ

C204

3.3

C205

0.01

C206

3.3

C207

0.01

R202

R203

C208

0.1

L202

209

3.3

C210

0.01

C211

0.01

R V

112

R V

113

Y EQ

CCD O

R V

111

CCD O

SEP

115

116

111

110

112

113

SYN

DDS

C Y

C C RF

PB R

HCHG

I
N

I
D

O OU

C301

0.01

C302

75V

C303

110P

C304

1000P

R301

8200

C305

2.2

R302

6800

C307

390p

303

3300

C306

330p

C310

0.01

R V

114

R312

100k

R311

100k

R310

100k

301

R313

2200

5600

BPF

75V

A AD

82k

120

SEP

213

Y L

PB Y L

EV2

PB Y L

EV1

1203

1700A

106

100p

EE L

EVEL

L1506

C314

4.7

C313

0.01

316

100k

C312

1000p

R315

4700

115

10k

R317

4700

314

100k

C311

0.01

DEV

156

155

107

47k

ASK

OG V

6
5
4

10
11
12
13

VA SW

NHKC

DLO

SECJ

SECL

AF SEL

CSYN

GND

SIGIN

VG1

VG2

VSS

VCO

VSS

VDD

VSS

OIN

PCO

VSS

CLK

VREG

PHASE AD

R111

10µ

PBCIN

SECAC

1/2F

Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for

any problems arising out of the use of these circuits or for any infringement of third party and other right due to same.

SONY CODE

EIAJ CODE

JEDEC CODE

23.9 ± 0.4

20.0 0.1

1.0

0.4 0.1

+ 0.15

14.

0.15 0.05

+ 0.1

2.75 0.15

16.

0.1 0.05

+ 0.2

8 ±

± 0.12

0.15

+ 0.4

17.9 ±

0.4

+ 0.35

64PIN QFP(PLASTIC)

QFP64PL01

QFP064P1420

PACKAGE MATERIAL

LEAD TREATMENT

LEAD MATERIAL

PACKAGE WEIGHT

EPOXY RESIN

SOLDER/PALLADIUM

COPPER /42 ALLOY

PACKAGE STRUCTURE

PLATING

1.5g

SONY CODE

EIAJ CODE

JEDEC CODE

PACKAGE MATERIAL

LEAD TREATMENT

LEAD MATERIAL

PACKAGE WEIGHT

EPOXY / PHENOL RESIN

SOLDER PLATING

42 ALLOY

PACKAGE STRUCTURE

12.0 ± 0.2

10.0 ± 0.1

(0.22)

0.18 0.03

+ 0.08

0.5 ± 0.08

0.5 ±

0.2

(11.0)

0.127 0.02

+ 0.05

1.5 0.1

+ 0.2

0.1 ± 0.1

0.5 ±

0.2

0° to 10°

64PIN LQFP (PLASTIC)

LQFP-64P-L01

QFP064-P-1010-A

0.3g

DETAIL A

0.1

NOTE: Dimension "

" does not include mold protrusion.

Package Outline Unit : mm

CXA1700AQ

CXA1700AR

CXA1700AQ/AR

--51--

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ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: CXA1700AQ