1
ICs for VCR
s
Overview
The AN3336SB is a recording/playback amplifier IC for
4-head VCR. It includes RF-AGC, automatic tracking I/O,
and envelope comparing circuit.
s
Features
Playback V
C
C
=
5
.0V, recording V
CC
= 12V
Built-in RF-AGC circuit
Built-in automatic tracking I/O circuit
Built-in envelope comparing circuit
AN3336SB
4-Head VCR Recording/Playback Amplifier IC
Unit : mm
36-Pin SSOP package (SSOP036-P-0450A)
0.5
15.2
0.30
11.93
0.30
0.3
0.11
2.85
0.2
0.8
1.3
0.25
0.2
+ 0.1
0.05
1.3
0.25
0.1
0.1
(0.28)
8.4
0.30
1
18
19
36
Head switching
Envelope ON/OFF switching
Ch 1 head amp. damping
Ch 1 head amp. input
Small-signal ground
Ch 2 head amp. input
Ch 2 head amp. damping
Sub-ground
Sub-ground
Ch 3 head amp. damping
Ch 3 head amp. input
Small-signal ground
Ch 4 head amp. input
Ch 4 head amp. damping
Rec. current amp. (LP) output
Rec. feedback
Rec. current amp. (SP) output
Rec. V
CC
Pin No.
1
2
3
4
5
Pin name
Pin name
Pin No.
6
7
8
9
10
25
26
27
28
11
12
13
14
15
29
30
31
32
33
Evelope detector capacitor for ch 3 and ch 4
Peaking for recording
Automatic tracking output
Automatic tracking detector capacitor
Automatic tracking control
Automatic tracking V
CC
Rec. Yinput
Chroma output
Sub-ground
Sub-ground
Sub-ground
Recording Cinput
AGC output
AGC detector capacitor
Envelope detector capacitor for ch 1 and ch 2
Head amp. switching
ENV output, recording bias
Playback V
CC
s
Pin Descriptions
16
17
18
19
20
34
35
36
21
22
23
24
2
ICs for VCR
AN3336SB
36
33k
0.01
F
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
PB
5V V
CC
+
ENV
HASW
C IN
SUB GND
MAIN GND
1.5k
Y IN
AT
GCA
AT
OUT
0.1
F
0.1
F
Det.
LOG
CHROMA
Amp.
Mix.
AGC
Det.
Comp.
Det.
Det.
SP
L
H
LP
L
H
L
H
LP
SP
HA3
HA4
PB
ON
PB
ON
H
L
HA1
HA2
Rec
Logic
HSW
1
F
+
*
100
0.01
F 0.01
F
1
F
+
*
100
1
F
+
*
100
SUBGND
0.01
F 0.01
F
+
1
F
*
100
0.01
F
0.1
F
0.1
F
*
250
*
250
+
Rec V
CC
12V
ENV OFF H
Note) The resistance of notation* should be between 0 and 500 ohms.
17
s
Block Diagram
C
55 to +125
Parameter
Symbol
Rating
Unit
T
stg
T
opr
PB V
CC
Rec V
CC
P
D
20 to +70
Supply voltage (1)
Supply current (2)
Power dissipation
Note 2)
Operating ambient temperature
Note 1)
Storage temperature
Note 1)
13
440
C
V
V
6
mW
Note 1) Ta=25C for except ambient temperature and storage temperatures.
Note 2) Allowable power dissipation of the package at Ta=70C.
s
Absolute Maximum Ratings
3
ICs for VCR
AN3336SB
7
G
426
G
626
PB V
CC
=5V
PB V
CC
=5V
53
61
dB
G
1126
PB V
CC
=5V
53
53
61
61
dB
dB
Parameter min
Condition typ
max
Unit
Symbol
53
61
dB
G
1326
PB V
CC
=5V
I
36
PB V
CC
=5V
PB circuit current
CH 1 gain
CH 2 gain
CH 3 gain
CH 4 gain
HSW change-over sensitivity
HASW change-over sensitivity
AGC output amplitude
AGC control sensitivity
HSW DC unbalance (I)
HSW DC unbalance (II)
HASW DC unbalance (I)
HASW DC unbalance (II)
Input conversion noise (1)
Input conversion noise (2)
Input conversion noise (3)
Input conversion noise (4)
Auto-tracking output at no-input
Auto tracking max. output
ENV output amplitude
Rec. circuit current
SP YRec. current output
LP YRec. current output ratio
SP 8MHz f characteristics ratio
LP 8MHz f characteristics ratio
Rec. chroma output ratio
PB circuit current
CH 1 gain
CH 2 gain
CH 3 gain
CH 4 gain
AGC output amplitude
Rec circuit current
SP YRec. current output
Rec. chroma output ratio
Rec. current 2nd harmonics distortion
Cross-modulation relative level
Auto tracking SP output voltage (1)
Auto tracking SP output voltage (2)
Auto tracking LP output voltage difference
56
mA
S
34
V
431
PB V
CC
=5V
PB V
CC
=5V
3.0
dB
V
431
PB V
CC
=5V
130
3.8
270
V
mV
PP
100
mV
PP
HSW
26 (I)
PB V
CC
=5V
S
1
PB V
CC
=5V
3.8
V
HASW
26 (I)
HASW
26 (II)
PB V
CC
=5V
PB V
CC
=5V
1.0
Vrms
N
426
/G
426
PB V
CC
=5V
100
100
mV
PP
mV
PP
1.0
Vrms
N
626
/G
626
PB V
CC
=5V
HSW
26 (II)
PB V
CC
=5V
100
mV
PP
N
1326
/G
1326
V
21min.
PB V
CC
=5V
PB V
CC
=4.8V
3.8
V
V
21max.
PB V
CC
=4.8V
1.0
1.0
Vrms
V
3.5
V
PP
V
35
PB V
CC
=5V
N
1126
/G
1126
PB V
CC
=5V
1.0
Vrms
48
mA
I
18
Rec V
CC
=12V
I
15
/I
17
I
17H
/I
17
Rec V
CC
=12V
Rec V
CC
=12V
4
dB
I
15H
/I
15
Rec V
CC
=12V
2.5
dB
dB
15
dB
I
17C
/I
17
Rec V
CC
=12V
I
17
Rec V
CC
=12V
32
mA
PP
4
2.5
17
s
Electrical Characteristics
(Ta=25
2C)
G
426
G
626
PB V
CC
=5V
PB V
CC
=5V
dB
G
1126
PB V
CC
=5V
dB
dB
dB
G
1326
PB V
CC
=5V
I
36
PB V
CC
=5V
mA
I
18
I
17
Rec V
CC
=12V
Rec V
CC
=12V
dB
I
17C
/I
17
Rec V
CC
=12V
mA
mA
PP
dB
D
2f
Rec V
CC
=12V
V
431
PB V
CC
=5V
mV
PP
V
21SP1
V
21SP2
PB V
CC
=4.8V, Vin=400mV
PP
PB V
CC
=4.8V, Vin=100mV
PP
V
V
21LP
V
21SP2
PB V
CC
=4.8V
V
V
D
M
Rec V
CC
=12V
dB
Note) The characteristics value in parentheses is not a guaranteed value, but reference one on design.
(3.4)
(1.5)
(0.1)
(43)
(57)
(57)
(57)
(57)
(200)
(33)
(12)
(12)
( 43)
( 48)
(3.9)
(2.5)
(0.5)
Parameter
Symbol
Range
Operating supply voltage range (1)
Operating supply voltage range (2)
4.5V to 5.5V
PBV
CC
8.5V to 12.5V
RecV
CC
s
Recommended Operating Range
(Ta=25C)
4
ICs for VCR
AN3336SB
SP
LP
Channel
Input pin
Head SW Pin
1
HASW Pin
34
1
2
3
4
4
6
11
13
H
L
L
H
L
L
H
H
s
Functional Descriptions
1. Playback mode
Pin36 (playback V
CC
) = 5V typ. (Pins15 and 17 are grounded internally)
Pin18 (recording V
CC
) = open
(1) Selecting a head amplifier output channel
Env. ON/OFF SW
Pin2
Env. comparator
Open
Inactive
Low (special playback)
Active
(2) Starting the envelope comparator
High
Low
LP
SP
Automatic tracking
(3) Automatic tracking interface
Pin24 (automatic tracking V
CC
) = 5V typ.
When the SP mode of the automatic tracking
interface switches to the LP mode, the gain of
the amplifier increases 5.5dB.
When the gain control voltage at Pin23 increases,
the gain of the circuit increases.
HASW(Pin24)
5
ICs for VCR
AN3336SB
0
Ambient temperature Ta (C)
P
D
--Ta
200
400
600
800
1.000
1.200
1.400
1.600
Power dissipation P
D
(mW)
1.449
25
50
75
100
125
150
On glass-epoxy print board
(50mm
50mm
t 0.8mm)
R
thja
=69C/W
P
D
=1449mW(25C)
IC without heatsink
R
thja
=120C/W
P
D
=833mW (25C)
833
1.800
2.000
0
HASW Pin
34
H
L
OFF
active
SP output
active
OFF
LP output
GND
Diode
Pin
11
,
13
Diode
GND
Pin
4
,
6
Open
GND
Pin
19
HASW control at Pin34
s
Reference
35
R
2. Recording mode
Pin18 (recording V
CC
) =12V typ.
Pin36 (playback V
CC
)
Pin24 (automatic tracking V
CC
)
Pin35 : Recording internal bias current control
How to control :
When the external resistance decreases, the internal circuit bias current
(I
total
) increases.
R should be 27 to 33k
.
}
Opened or grounded
PDF 
ZIP