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Электронный компонент: TDA8758G/C1

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DATA SHEET
Product specification
Supersedes data of 1995 Mar 22
File under Integrated Circuits, IC02
1996 Feb 01
INTEGRATED CIRCUITS
TDA8758
YC 8-bit low-power
analog-to-digital video interface
1996 Feb 01
2
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital
video interface
TDA8758
FEATURES
Two 8-bit ADCs:
one Luminance or CVBS channel
one Chrominance channel
Sampling rate up to 32 MHz
Binary or two's complement 3-state TTL outputs for
each channel
Internal reference voltage regulator
TTL-compatible digital inputs and outputs
Power dissipation of 530 mW (typical)
Input selector circuit (five selectable video inputs for
CVBS or YC processing)
Peak white enable input
Clamp and Automatic Gain Control (AGC) functions for
Y/CVBS channel (clamping on code 64 and Peak White
level control at code 255)
Clamp function for C channel (code 128)
No sample-and-hold circuit required.
APPLICATIONS
Video signal decoding
Digital picture processing
Frame grabbing
Multimedia with the Philips Desktop Video chip set (and
especially SAA7196 multistandard decoder and scaler).
GENERAL DESCRIPTION
The TDA8758 is an 8-bit video high-speed low-power
analog-to-digital conversion (ADC) interface for YC and
CVBS signal processing. It converts 1-of-3 CVBS input
signals or 1-of-2 YC input signals into binary or two's
complement words at a sampling rate of 32 MHz.
All analog signal inputs are digitally clamped and an ADC
interface is provided on the Y/CVBS channel. A fast
precharge on clamp and AGC is provided for start-up.
All digital inputs and outputs are TTL compatible.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CCA
analog supply voltage
4.75
5.0
5.25
V
V
CCD
digital supply voltage
4.75
5.0
5.25
V
V
CCO
output stages supply voltage
4.75
5.0
5.25
V
I
CCA
analog supply current
-
59
70
mA
I
CCD
digital supply current
-
28
40
mA
I
CCO
output supply current
C
L
= 15 pF
-
19
28
mA
ILE
DC integral linearity error
-
0.75
1.5
LSB
DLE
DC differential linearity error
-
0.4
1.0
LSB
EB
effective bits
(from video input to digital outputs)
f
clk
= 32 MHz;
f
i
= 4.43 MHz
-
7.1
-
bits
f
clk(max)
maximum clock frequency
30
32
-
MHz
B
maximum
-
3 dB bandwidth
(input preamplifier)
full-scale; 0 dB gain
-
15
-
MHz
ct
crosstalk between Y and C channels
and each video input
-
-
63
-
55
dB
P
tot
total power dissipation
-
530
724
mW
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8758G
LQFP48
plastic low profile quad flat package; 48 leads; body 7
7
1.4 mm
SOT313-2
1996 Feb 01
3
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MGB469 - 1
TDA8758
CLAMP
LEVEL 128
ADC
INPUT
SELECTOR
COMPARATOR
TTL
TIMING
GENERATOR
COMPARATORS
48
45
8
44
17
1
46
15
ADC
TTL
7
13
AGC &
CLAMP 64
16
14
19
20
2
4
6
9
11
5
10
21
41
32
33
to
40
47
42
22
23
to
30
12
31
43
18
3
8
8
C7 to C0
Y7 to Y0
OGND2
OFC
DEC2
ANOUTC
REG1
CCA
V
OGND1
CLK
DEC1
CHROM2
AGND
CHROM1
SEL2
CVBS3
SDN
Y2/CVBS2
Y1/CVBS1
SEL1
PWE
DEC3
ANOUTY
REG2
DGND
GATE A
GATE B
OFY
VCCO2
CCLPC
VCCO1
CCLPY
VCCA
CAGC
VCCD
1996 Feb 01
4
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
PINNING
SYMBOL
PIN
DESCRIPTION
DEC1
1
decoupling input 1
CHROM2
2
chrominance analog voltage input 2
AGND
3
analog ground
CHROM1
4
chrominance analog voltage input 1
SEL2
5
selection control input 2
CVBS3
6
luminance analog voltage input 3
C
CLPY
7
Y channel clamping capacitor
SDN
8
stabilizer decoupling node
Y2/CVBS2
9
luminance analog voltage input 2
V
CCA
10
analog supply voltage (+5 V)
Y1/CVBS1
11
luminance analog voltage input 1
SEL1
12
selection control input 1
C
AGC
13
AGC capacitor
PWE
14
peak white enable input (active LOW)
DEC3
15
decoupling input 3
ANOUTY
16
analog output for Y channel
REG2
17
decoupling input 2 (internal stabilization loop decoupling)
DGND
18
digital ground
GATE A
19
AGC control input
GATE B
20
clamp control input
V
CCD
21
digital supply voltage (+5 V)
OFY
22
Y channel output format/chip enable (3-state input)
Y7
23
Y channel data output; bit 7 (MSB)
Y6
24
Y channel data output; bit 6
Y5
25
Y channel data output; bit 5
Y4
26
Y channel data output; bit 4
Y3
27
Y channel data output; bit 3
Y2
28
Y channel data output; bit 2
Y1
29
Y channel data output; bit 1
Y0
30
Y channel data output; bit 0 (LSB)
OGND2
31
output ground 2
V
CCO2
32
output supply voltage 2 (+5 V)
C7
33
C channel data output; bit 7 (MSB)
C6
34
C channel data output; bit 6
C5
35
C channel data output; bit 5
C4
36
C channel data output; bit 4
C3
37
C channel data output; bit 3
C2
38
C channel data output; bit 2
C1
39
C channel data output; bit 1
C0
40
C channel data output; bit 0 (LSB)
1996 Feb 01
5
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
V
CCO1
41
output supply voltage 1 (+5 V)
CLK
42
clock input
OGND1
43
output ground 1
REG1
44
decoupling input 1 (internal stabilization loop decoupling)
ANOUTC
45
analog output for C channel
DEC2
46
decoupling input 2
OFC
47
C channel output format/chip enable (3-state input)
C
CLPC
48
C channel clamping capacitor
SYMBOL
PIN
DESCRIPTION
Fig.2 Pin configuration.
handbook, full pagewidth
1
2
3
4
5
6
7
8
9
10
11
36
35
34
33
32
31
30
29
28
27
26
13
14
15
16
17
18
19
20
21
22
23
48
47
46
45
44
43
42
41
40
39
38
12
24
37
25
pin 1
index
corner
TDA8758
MGB470
C4
C5
C6
C7
OGND2
Y0
Y1
Y2
Y3
Y4
Y5
DEC1
CHROM2
AGND
CHROM1
SEL2
CVBS3
SDN
Y2/CVBS2
Y1/CVBS1
SEL1
VCCO2
OFC
DEC2
ANOUTC
REG1
OGND1
CLK
C0
C1
C2
C3
C
CLPC
V
CCO1
CCLPY
VCCA
PWE
DEC3
ANOUTY
REG2
DGND
GATE A
GATE B
OFY
Y7
Y6
C
AGC
V
CCD
1996 Feb 01
6
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
FUNCTIONAL DESCRIPTION
The TDA8758 provides a simple interface between CVBS
or Y/C analog signals and a digital colour decoder.
Video inputs selection
The input selector allows a choice from different video
sources, and has one of the following configurations:
A: Two Y/C and one CVBS signals
B: One Y/C and two CVBS signals
C: Three CVBS signals (only the Y channel is used).
The wiring of the five video inputs (pins 2, 4, 6, 9 and 11)
and the control of the two selection inputs (pins 5 and 12)
will depend on the available video sources.
In configuration A, connect as follows:
Y1 to pin 11
C1 to pin 4
Y2 to pin 9
C2 to pin 2
CVBS3 to pin 6.
Keep SEL2 (pin 5) LOW and select Y1/C1 or Y2/C2 by
switching SEL1 (pin 12).
CVBS3 is selected with SEL1 and SEL2 HIGH.
In configuration B, replace Y1 (or Y2) by a CVBS input
(no more C1 or C2). The selection mode is the same.
In configuration C, connect as follows:
CVBS1 to pin 11
CVBS2 to pin 9
CVBS3 to pin 6.
Use both SEL1 and SEL2 to select inputs.
Remark: the video inputs selection is a static selection.
Synchronization pulses
GATE A and GATE B pulses are synchronization pulses
occurring during the sync period and rear porch
respectively. They should be distinct.
On the Y channel, the digital output of the ADC is
compared to internal digital reference levels. The resultant
outputs control the charge or discharge current of a
capacitor connected to the C
AGC
pin. The voltage across
this capacitor controls the gain of the video amplifier.
This is the control loop.
The sync level comparator is active during a positive-going
pulse at the GATE A input. This means that sync pulse of
the composite video signal is used as an amplitude
reference. The bottom of the sync pulse is adjusted to
obtain a digital output of logic 1 at the converter Y output.
As the black level is digital level 64, the sync pulse will
have a digital amplitude of 64 LSBs.
The Peak White control loop is active when the selection
pin PWE is LOW. Then, if the Y video signal exceeds the
digital code of 255, it will be limited to avoid any over-range
of the converter.
The clamp level control is accomplished by using the same
techniques as used for the gain control. On both Y and C
channels, the black level digital comparators are active
during a positive-going pulse at the GATE B input. On the
Y channel, the clamping capacitor connected to the C
CLPY
pin will be charged or discharged to adjust the digital
output to code 64. On the C channel, the clamping
capacitor connected to the C
CLPC
pin will be charged or
discharged to adjust the digital output to code 128.
1996 Feb 01
7
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
CHARACTERISTICS
V
CCA
= V
10
to V
3
= 4.75 to 5.25 V; V
CCD
= V
21
to V
18
= 4.75 to 5.25 V; V
CCO1
= V
41
to V
43
= 4.75 to 5.25 V;
V
CC02
= V
32
to V
31
= 4.75 to 5.25 V; AGND and DGND shorted together; V
CCA
to V
CCD
=
-
0.25 to +0.25 V;
V
CCO
to V
CCD
=
-
0.25 to +0.25 V; V
CCA
to V
CCO
=
-
0.25 to +0.25 V; T
amb
= 0 to +70
C; typical values measured
at V
CCA
= V
CCD
= V
CCO
= 5 V and T
amb
= 25
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
CCA
analog supply voltage
-
0.3
+7.0
V
V
CCD
digital supply voltage
-
0.3
+7.0
V
V
CCO
output supply voltage
-
0.3
+7.0
V
V
CC
supply voltage difference between V
CCA
and V
CCD
-
1.0
+1.0
V
supply voltage difference between V
CCO
and V
CCD
-
1.0
+1.0
V
supply voltage difference between V
CCA
and V
CCO
-
1.0
+1.0
V
V
I
input voltage
referenced to AGND
-
5.0
V
V
clk(p-p)
AC input voltage for switching (peak-to-peak value) referenced to DGND
-
V
CCO
V
I
O
output current
-
+6
mA
T
stg
storage temperature
-
55
+150
C
T
amb
operating ambient temperature
0
+70
C
T
j
junction temperature
-
+150
C
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
72
K/W
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
CCA
analog supply voltage
4.75
5.0
5.25
V
V
CCD
digital supply voltage
4.75
5.0
5.25
V
V
CCO
output stages supply voltage
4.75
5.0
5.25
V
I
CCA
analog supply current
-
59
70
mA
I
CCD
digital supply current
-
28
40
mA
I
CCOtot
total output supply current
C
L
= 15 pF
-
19
28
mA
Video amplifier inputs
Y1/CVBS1, Y2/CVBS2, CVBS3, CHROM1
AND
CHROM2
INPUTS
V
I(p-p)
input voltage (peak-to-peak value)
AGC load with external
capacitor; note 1
Y channel
0.7
-
1.4
V
C channel
-
1.0
-
V
|
Z
i
|
input impedance
f
i
= 6 MHz
-
25
-
k
C
I
input capacitance
f
i
= 6 MHz
-
2
-
pF
1996 Feb 01
8
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
SEL1
AND
SEL2 TTL
INPUTS
; see Table 1
V
IL
LOW level input voltage
0
-
0.8
V
V
IH
HIGH level input voltage
2.0
-
V
CCD
V
I
IL
LOW level input current
V
I
= 0.4 V
-
400
-
-
A
I
IH
HIGH level input current
V
I
= 2.7 V
-
-
20
A
GATE A
AND
GATE B TTL
INPUTS
; see Figs 5 and 6
V
IL
LOW level input voltage
0
-
0.8
V
V
IH
HIGH level input voltage
2.0
-
V
CCD
V
I
IL
LOW level input current
V
I
= 0.4 V
-
400
-
-
A
I
IH
HIGH level input current
V
I
= 2.7 V
-
-
20
A
AGC
INPUT
(
PIN
13); see Fig.8
V
13(min)
AGC voltage for minimum gain at
-
3 dB
-
3.3
-
V
V
13(max)
AGC voltage for maximum gain at +3 dB
-
3.75
-
V
I
12
AGC output current
see Table 2
C-
CHANNEL CLAMP INPUT
(
PIN
48)
V
48
CLAMP voltage for code 128 output
-
3.45
-
V
I
48
CLAMP output current
see Table 3
Y-
CHANNEL CLAMP INPUT
(
PIN
7)
V
7
CLAMP voltage for code 64 output
-
3.70
-
V
I
7
CLAMP output current
see Table 3
Video amplifier dynamic characteristics
ct
crosstalk between video inputs
(pins 2, 4, 6, 9 and 11)
V
CCA
= 4.75 to 5.25 V
-
-
63
-
55
dB
B
-
3 dB bandwidth
-
15
-
MHz
G
gain range
-
3
-
+3
dB
G
stab
gain stability as a function of:
supply voltage
f
i
= 4.43 MHz
-
-
0.5
%
supply voltage and temperature
-
-
6
%
Analog-to-digital converter inputs
CLK
INPUT
(
PIN
42)
V
IL
LOW level input voltage
0
-
0.8
V
V
IH
HIGH level input voltage
2.0
-
V
CCD
V
I
IL
LOW level input current
V
clk
= 0.4 V
-
400
-
-
A
I
IH
HIGH level input current
V
clk
= 2.7 V
-
-
20
A
C
I
input capacitance
f
clk
= 32 MHz
-
2
-
pF
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1996 Feb 01
9
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
OFY
AND
OFC
INPUTS
; 3-
STATE
; see Table 4
V
IL
LOW level input voltage
0
-
0.2
V
V
IH
HIGH level input voltage
2.6
-
V
CCD
V
V
I
input voltage in high impedance state
-
1.15
-
V
I
IL
LOW level input current
-
370
-
300
-
A
I
IH
HIGH level input current
-
500
700
A
Analog-to-digital converter outputs
ANOUTY
AND
ANOUTC
OUTPUTS
(
PINS
16
AND
45); see Table 5
V
ANOUT
output voltage
digital output = 00
-
2.6
-
V
V
ANOUT
output voltage
digital output = 255
-
3.6
-
V
V
ANOUT(p-p)
output voltage amplitude
(peak-to-peak value)
-
1.0
-
V
D
IGITAL OUTPUTS
Y0
TO
Y7, C0
TO
C7
V
OL
LOW level output voltage
I
OL
= 2 mA
0
-
0.6
V
V
OH
HIGH level output voltage
I
OL
=
-
0.4 mA
2.4
-
V
CCD
V
Switching characteristics; see Fig.9
f
clk(max)
CLK input maximum frequency
note 2
30
32
-
MHz
t
CPH
clock pulse width HIGH
12
-
-
ns
t
CPL
clock pulse with LOW
12
-
-
ns
Analog signal processing from video input to digital output on both channels; 0 dB gain (f
clk
= 32 MHz)
INL
DC integral non-linearity
-
0.75
1.5
LSB
DNL
DC differential non-linearity
-
0.4
1.0
LSB
AINL
AC integral non linearity
f
i
= 4.43 MHz
-
1.5
-
LSB
ADNL
AC differential non-linearity
f
i
= 4.43 MHz
-
0.5
-
LSB
THD
total harmonic distortion
note 3
-
-
52
-
dB
EB
effective bits
f
i
= 4.43 MHz; note 4
-
7.1
-
bits
G
diff
differential gain
V
16,45
= 1.0 V (p-p);
see Fig.4; PAL
modulated ramp; note 5
-
1.5
3.0
%
diff
differential phase
see Fig.5; PAL
modulated ramp; note 5
-
0.6
1.5
deg
SVRR2
supply voltage ripple rejection
note 6
-
-
5
%/V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1996 Feb 01
10
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Notes
1. 0 dB is obtained at the AGC amplifier when applying V
I(p-p)
= 1.0 V on Y channel.
2. It is recommended that the rise and fall times of the clock are
1 ns. In addition, a `good layout' for the digital and
analog grounds is recommended.
3. THD (total harmonic distortion) is obtained with the addition of the first five harmonics:
a) F being the fundamental harmonic referenced at 0 dB for a full-scale sine wave input.
4. Effective bits are obtained via a Fast Fourier Transform (FFT) treatment taking 8 K acquisition points per equivalent
fundamental period. The calculation takes into account all harmonics and noise up to half of the clock frequency
(NYQUIST frequency). Conversion to signal-to-noise ratio: S/N = EB
6.02 + 1.76 dB.
5. Measurement carried out using video analyser VM700A, where video analog signal is reconstructed through a
digital-to-analog converter.
6. The supply voltage ripple rejection is the relative variation of the analog signal (full-scale signal at input) for 0.5 V of
supply variation:
Timing (f
clk
= 32 MHz); see Fig.9
D
IGITAL OUTPUTS
(C
L
= 15 pF)
t
ds
sampling delay time
-
2
-
ns
t
h
output hold time
10
-
-
ns
t
d
output delay time
-
15
18
ns
t
W
clamp pulse width
see Figs 6 and 7
2
3
-
s
3-state output delay times; see Fig.10
t
dZH
enable HIGH
-
12
14
ns
t
dZL
enable LOW
-
10
12
ns
t
dHZ
disable HIGH
-
58
62
ns
t
dLZ
disable LOW
-
70
74
ns
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
THD
20 log
F
(2nd)
2
(3rd)
2
(4th)
2
(5th)
2
(6th)
2
+
+
+
+
---------------------------------------------------------------------------------------------------------------
=
SVRR2
V
I 00
( )
V
I FF
(
)
(
)
V
I 00
( )
V
I FF
(
)
(
)
V
CCA
-----------------------------------------------------------------------------------------------------
=
1996 Feb 01
11
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Table 1 Video input selection
Note
1. X = don't care.
SEL1
SEL2
Y-CHANNEL
C-CHANNEL
FIGURE 3
0
X
(1)
Y1/CVBS1
CHROM1
(a)
1
0
Y2/CVBS2
CHROM2
(b)
1
1
CVBS3
CHROM2
(c)
Fig.3 Video inputs selector.
handbook, full pagewidth
2
CHROM2
CHROM1
SEL2
CVBS3
Y2/CVBS2
Y1/CVBS1
SEL1
4
9
11
6
5
12
C CHANNEL
Y CHANNEL
(a)
2
CHROM2
CHROM1
SEL2
CVBS3
Y2/CVBS2
Y1/CVBS1
SEL1
4
9
11
6
5
12
C CHANNEL
Y CHANNEL
(b)
2
CHROM2
CHROM1
SEL2
CVBS3
Y2/CVBS2
Y1/CVBS1
SEL1
4
9
11
6
5
12
C CHANNEL
Y CHANNEL
(c)
MGB471
1996 Feb 01
12
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Table 2 AGC output current
Note
1. X = don't care.
Table 3 CLAMP output current
Note
1. X = don't care.
PWE
GATE A
DIGITAL
OUTPUT
I
AGC
0
0
output
<
255
0
A
output
>
255
+540
A
0
1
output
<
0
+8
A
0 < output < 255
-
8
A
output > 255
+540
A
1
0
X
(1)
0
A
1
1
output
<
0
+8
A
0 < output < 255
-
8
A
CLAMP
GATE B
DIGITAL
OUTPUT
I
CLAMP
C
1
output
<
128
+54
A
output
>
128
-
54
A
X
(1)
0
X
(1)
0
A
Y
1
output
<
64
+54
A
64 < output
-
54
A
Table 4 OFY and OFC input coding
Note
1. Use C
10 pF to DGND.
OFY (or OFC)
Y0 to Y7 (or C0 TO C7)
0
active, twos complement
1
high impedance
open circuit
(1)
active, binary
Table 5 Output coding and ANOUTY (or ANOUTC) voltage (typical values)
STEP
V
I
BINARY OUTPUTS
TWOS COMPLIMENT
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Underflow
-
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
2.6
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
-
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
.
-
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
254
-
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
255
3.6
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
Overflow
-
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1996 Feb 01
13
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Fig.4 Typical differential gain result on VM700A.
handbook, full pagewidth
1st
2nd
3rd
4th
5th
6th
1.0
0.0
2.0
3.0
1.0
MBE455
DIFFERENTIAL
GAIN
(%)
(6)
(5)
(4)
(3)
(2)
(1)
step number
(1) = 0.00; (2) = 0.09; (3) =
-
0.63; (4) =
-
0.45; (5) =
-
0.45; (6) =
-
1.23.
Differential gain = max. (2)
-
min. (6) = 1.32%.
Fig.5 Typical differential phase result on VM700A.
handbook, full pagewidth
1st
2nd
3rd
4th
5th
6th
2.0
1.0
1.0
2.0
0
MBE456
DIFFERENTIAL
PHASE
(deg)
(6)
(5)
(4)
(3)
(2)
(1)
step number
(1) = 0.00; (2) = 0.03; (3) =
-
0.53; (4) =
-
0.32; (5) = 0.01; (6) =
-
0.08.
Differential phase = max. (2)
-
min. (3) = 0.56 deg.
1996 Feb 01
14
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Fig.6 Control mode Y channel.
handbook, full pagewidth
MGB472
digital
output
level
64
255
0
time
black-level
clamping
213
safety
margin
standard picture
level
GATE A
GATE B
sync-level control
peak-level gain control
W
t
W
t
Fig.7 Control mode C-channel.
andbook, full pagewidth
MGB473
digital
output
level
255
0
time
black-level
clamping
GATE B
128
W
t
1996 Feb 01
15
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Fig.8 AGC behaviour as a function temperature and supply voltage for ANOUTY output; f
i
= 4.43 MHz, V
i
= 0 dB.
handbook, full pagewidth
4.0
3.9
3.7
3.5
3.3
3.1
8
6
2
4
4
8
3.0
3.2
3.4
3.6
3.8
MBE463
0
2
6
AGC
GAIN
(dB)
C voltage (V)
AGC
Dotted line: Typical curve (T
amb
= 25
C; V
CC
= 5 V).
Full line: Maximum envelope (T
amb
= 0 to 70
C; V
CC
= 4.75 to 5.25 V).
Fig.9 Timing diagram.
handbook, full pagewidth
ds
t
sample N + 1
sample N
CLK
MBE454
sample N + 2
1.4 V
V
l
DATA
C0 to C7
Y0 to Y7
t d
t h
CPH
t
CPL
t
2.4 V
0.4 V
1.4 V
DATA
N + 1
DATA
N
DATA
N - 1
DATA
N - 2
1996 Feb 01
16
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Fig.10 Timing diagram and test conditions of 3-state output delay time.
f
OFC
= f
OFY
= 100 kHz.
handbook, full pagewidth
MBE453
50 %
1.15 V
50 %
HIGH
dZH
t
dHZ
t
50 %
HIGH Z
HIGH Z
LOW
dZL
t
dLZ
t
10 %
90 %
output
data
VCCD
output
data
3.3 k
15 pF
S1
VCCD
TDA8758
OFC
OFY
OFC
OFY
TEST
dLZ
t
dZL
t
dHZ
t
dZH
S1
CCD
V
CCD
V
GND
GND
t
1996 Feb 01
17
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
APPLICATION INFORMATION
Fig.11 Application diagram.
handbook, full pagewidth
MGB476
OFC
DEC2
ANOUTC
AGND
REG1
OGND1
CLK
DEC1
AGND
AGND
CHROM2
AGND
CHROM1
SEL2
CVBS3
SDN
Y2/CVBS2
Y1/CVBS1
SEL1
ANOUTY
REG2
DGND
GATE A
GATE B
OFY
CCLPC
CCLPY
VCCA
CAGC
V
CCD
48
47
46
45
44
43
42
41
40
39
38
37
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
C4
C5
C6
C7
OGND2
Y0
Y1
Y2
Y3
Y4
Y5
C0
C1
C2
C3
Y6
Y7
PWE
VCCO2 ( 5 V)
VCCO1
VCCA
AGND
VCCA
( 5 V)
1
F
75
75
75
75
75
4.7
F
4.7
F
4.7
F
4.7
F
18 nF
22 nF
DEC3
( 5 V)
TDA8758
18
nF
22 nF
1 nF
3.3
nF
470
nF
1 nF
3.3
nF
(1)
(1)
(1) It is recommended that pin 16 and pin 45 are not loaded in order to avoid any distortion.
1996 Feb 01
18
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
Fig.12 Example of system application (DPC71 evaluation board).
andbook, full pagewidth
MBH012
4
CHROMA1
33
CHR7
CHR7
34
CHR6
CHR6
CHROMA2
Y1/CVBS1
Y2/CVBS2
2
11
9
CVBS3
6
C27
4.7
F
C26
4.7
F
C25
4.7
F
C11
4.7
F
SEL1
IN0
12
SEL2
IN1
5
PWE
GPSWO
14
GATE A
HSY
19
GATE B
HCL
20
IN_ADC_Y
DEC_LLC
INADCY
16
IN_ADC_C
INADCC
45
OE_Y
22
OE_C
INADCY
INADCC
47
CHROMA IN
LUMA IN
CVBS1 IN
CVBS2 IN
CLMP_Y
CLMP_C
7
48
SDN
8
C12
0.1
F
C14
0.022
F
C13
0.1
F
DEC1
1
DEC2
46
C16
0.022
F
C15
0.022
F
AGC_CAP
13
C18
0.47
F
REG1
HEADER 3
3SIP100
44
REG2
17
C20
0.047
F
C19
0.047
F
DEC3
15
C17
0.022
F
VCCA
VCC
1
2
3
JP14
HEADER 3
3SIP100
VCC
VCCA
VCC
VCCA
1
2
3
JP15
HEADER 3
3SIP100
VCC
3
2
1
JP5
TDA8758
TDA8758
U2
SAA7151B
SAA7151B
68LLC50
U4
35
CHR5
CHR5
36
CHR4
CHR4
37
CHR3
CHR3
38
CHR2
CHR2
39
CHR1
CHR1
40
CHR0
13
CHR7
12
CHR6
11
CHR5
10
CHR4
9
CHR3
8
CHR2
7
CHR1
6
CHR0
55
UV7
56
UV6
57
UV5
58
UV4
59
UV3
60
UV2
61
UV1
62
DEC_UV7
DEC_UV0
to 7
DEC_Y0
to 7
DEC_UV6
DEC_UV5
DEC_UV4
DEC_UV3
DEC_UV2
DEC_UV1
DEC_UV0
UV0
45
D7
46
D6
47
D5
48
D4
49
D3
50
D2
53
D1
54
DEC_Y7
DEC_Y6
DEC_Y5
DEC_Y4
DEC_Y3
DEC_Y2
DEC_Y1
DEC_Y0
DEC_HREF
DEC_HS
DEC_VS
D0
42
HREF
31
HS
30
VS
CHR7
CHR6
CHR5
CHR4
CHR3
CHR2
CHR1
CHR0
CHR0
23
CVBS7
Y7
24
CVBS6
Y6
25
CVBS5
Y5
26
CVBS4
Y4
27
CVBS3
Y3
28
CVBS2
Y2
29
CVBS1
Y1
DEC_FI
DEC_RTC
GPSWO
65
MUXC
39
ODD
32
RTCO
1
SP
2
AP
35
37
VSSA
19
VSS1
38
VSS2
51
VSS3
67
VSS4
VDDA
VDD1
VDD2
VDD3
VDD4
5
18
28
52
SDA
SCL
40
SDA
41
SCL
64
FEIN
63
GPSWO
39
RSVRD
43
IICSA
66
GTBS
68
FSI
30
CVBS0
23
CVBS7
22
CVBS6
21
CVBS5
20
CVBS4
17
CVBS3
16
CVBS2
15
CVBS1
14
44
33
CVBS0
SDAT
XTAL
CVBS7
CVBS6
CVBS5
CVBS4
CVBS3
CVBS2
CVBS1
CVBS0
XTAL2
XTAL1
34
24
XTAL1
GPSW1
IN0
25
GPSW2
IN1
29
HSY
HSY
26
HCL
HCL
27
LL27
DEC_LLC
4
CREF
DEC_REF
36
LFCO
LFCO
3
RES
RES
CVBS0 to 7
R13
220
CHR0 to 7
Y0
42
CLK
31
CX12
0.1
F
CCX4
0.1
F
CX3
22
F
OGND1
43
OGND2
18
DGND
3
36
25
1
12
13
24
48
37
AGND
41
VCCO1
32
VCCO2
21
VCCD
10
VCCA
R64
4.7 k
VCC
CX6
22
F
CX5
0.1
F
CX14
0.1
F
60
44
10
26
27
43
9
1
61
PAD100
TEST PT
J10
VCC
VCC
VCC
VCCA
GND
PAD100
J24
GROUND
PAD100
J25
GROUND
PAD100
TEST PT
J9
VCC
VCCA
HEADER
4X2
8HH100
2
4
6
8
1
DEC_LLC
DEC_LLC2
DEC_CREF
3
5
7
JP16
SAA7197
20SOP300
U3
12
1
RES
MS
RES
R12
4.7 k
CX13
0.1
F
CX7
0.1
F
C24
0.1
F
15
16
CLKREF
LFCOSEL
LL3B
LL1 to 5B
3
PORD
4
VSSA
6
VSSD
9
VSSD
10
20
13
VSSD
18
VSSD
VDDA
VDDD
VDDD
5
11
LFCO
LFCO2
19
8
17
2
CE
R15
33
R16
33
R14
33
R11
22 k
7
LL1 to 5A
LL3A
14
RES
RES
C21
10 pF
C22
10 pF
C23
XTAL1
Y2
24.576 MHz
2SIP100
XTAL2
0.001
F
L2
10
H
1996 Feb 01
19
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
PACKAGE OUTLINE
UNIT
A
max.
A
1
A
2
A
3
b
p
c
E
(1)
e
H
E
L
L
p
Q
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
1.60
0.20
0.05
1.45
1.35
0.25
0.27
0.17
0.18
0.12
7.1
6.9
0.5
9.15
8.85
0.69
0.59
0.95
0.55
7
0
o
o
0.12
0.1
0.2
1.0
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
0.75
0.45
SOT313-2
93-06-15
94-12-19
D
(1)
(1)
(1)
7.1
6.9
H
D
9.15
8.85
E
Z
0.95
0.55
D
b
p
e
E
B
12
D
H
b
p
E
H
v
M
B
D
ZD
A
Z E
e
v
M
A
1
48
37
36
25
24
13
A
1
A
L
p
Q
detail X
L
(A )
3
A
2
X
y
c
w
M
w
M
0
2.5
5 mm
scale
pin 1 index
LQFP48: plastic low profile quad flat package; 48 leads; body 7 x 7 x 1.4 mm
SOT313-2
1996 Feb 01
20
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
"IC Package Databook" (order code 9398 652 90011).
Reflow soldering
Reflow soldering techniques are suitable for all LQFP
packages.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250
C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45
C.
Wave soldering
Wave soldering is not recommended for LQFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.
If wave soldering cannot be avoided, the following
conditions must be observed:
A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.
The footprint must be at an angle of 45
to the board
direction and must incorporate solder thieves
downstream and at the side corners.
Even with these conditions, do not consider wave
soldering LQFP packages LQFP48 (SOT313-2),
LQFP64 (SOT314-2) or LQFP80 (SOT315-1).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Maximum permissible solder temperature is 260
C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150
C within
6 seconds. Typical dwell time is 4 seconds at 250
C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Repairing soldered joints
Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300
C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320
C.
1996 Feb 01
21
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
DEFINITIONS
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
1996 Feb 01
22
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
NOTES
1996 Feb 01
23
Philips Semiconductors
Product specification
YC 8-bit low-power analog-to-digital video
interface
TDA8758
NOTES
Philips Semiconductors a worldwide company
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Tel. (09)849-4160, Fax. (09)849-7811
Norway: Box 1, Manglerud 0612, OSLO,
Tel. (022)74 8000, Fax. (022)74 8341
Pakistan: Philips Electrical Industries of Pakistan Ltd.,
Exchange Bldg. ST-2/A, Block 9, KDA Scheme 5, Clifton,
KARACHI 75600, Tel. (021)587 4641-49,
Fax. (021)577035/5874546
Philippines: PHILIPS SEMICONDUCTORS PHILIPPINES Inc.,
106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. (63) 2 816 6380, Fax. (63) 2 817 3474
Portugal: PHILIPS PORTUGUESA, S.A.,
Rua dr. Antnio Loureiro Borges 5, Arquiparque - Miraflores,
Apartado 300, 2795 LINDA-A-VELHA,
Tel. (01)4163160/4163333, Fax. (01)4163174/4163366
Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,
Tel. (65)350 2000, Fax. (65)251 6500
South Africa: S.A. PHILIPS Pty Ltd.,
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P.O. Box 7430, Johannesburg 2000,
Tel. (011)470-5911, Fax. (011)470-5494
Spain: Balmes 22, 08007 BARCELONA,
Tel. (03)301 6312, Fax. (03)301 42 43
Sweden: Kottbygatan 7, Akalla. S-164 85 STOCKHOLM,
Tel. (0)8-632 2000, Fax. (0)8-632 2745
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Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66, Chung Hsiao West
Road, Sec. 1. Taipeh, Taiwan ROC, P.O. Box 22978,
TAIPEI 100, Tel. (886) 2 382 4443, Fax. (886) 2 382 4444
Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong,
Bangkok 10260, THAILAND,
Tel. (66) 2 745-4090, Fax. (66) 2 398-0793
Turkey: Talatpasa Cad. No. 5, 80640 GLTEPE/ISTANBUL,
Tel. (0 212)279 27 70, Fax. (0212)282 67 07
Ukraine: Philips UKRAINE, 2A Akademika Koroleva str., Office 165,
252148 KIEV, Tel. 380-44-4760297, Fax. 380-44-4766991
United Kingdom: Philips Semiconductors LTD.,
276 Bath Road, Hayes, MIDDLESEX UB3 5BX,
Tel. (0181)730-5000, Fax. (0181)754-8421
United States: 811 East Arques Avenue, SUNNYVALE,
CA 94088-3409, Tel. (800)234-7381, Fax. (708)296-8556
Uruguay: Coronel Mora 433, MONTEVIDEO,
Tel. (02)70-4044, Fax. (02)92 0601
Internet: http://www.semiconductors.philips.com/ps/
For all other countries apply to: Philips Semiconductors,
International Marketing and Sales, Building BE-p,
P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands,
Telex 35000 phtcnl, Fax. +31-40-2724825
SCDS47
Philips Electronics N.V. 1996
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537021/1100/03/pp24
Date of release: 1996 Feb 01
Document order number:
9397 750 00606