Panasonic AN3341SC Datasheet
ICs for VCR
■ Overview
The AN3341SC is a recording/playback amplifier IC for
6-head VCR. It is suitable for 19-µ head, EP-mode only,
table-type VCR.
■ Features
•
Playback VCC=5.0V, recording VCC=12V
•
Built-in RF-AGC circuit
•
Built-in automatic tracking I/O circuit
•
Built-in envelope comparator circuit
AN3341SC
6-Head VCR Recording/Playback Amplifier IC
Unit : mm
42-Pin SSOP package (SSOP042-P-0450)
0.3
21.25±0.3
11.5±0.3
0.35±0.1
2.0±0.2
1.0
0.9
0.1±0.1
9.5±0.3
0.45
0.15
■ Block Diagram
HASW
42
PB V
CC
100µH
5V
0.01µF
1 2 3 4 5 6 7 8 9 10111213141516 17 18 19 20 21
47µF
1000pF
AT
0.01µF
0.1µF
TRAP
330pF
AT
GCA
180
µH
0.1µF
30kΩ
AT
ENV
OFF
ENV
Out
H
1.7kΩ
Out
1µF
1200pF
normal EP
/other
0.1µF
AGC
Out
TRICK
C – IN
H
0.01µF
Chroma
Out Y – IN
1.5kΩ
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
HL
L'
0.01µF
0.1µF
100Ω
Det.TRAP
0.1µF
100Ω
HA2
ENV
Det.
L
TRICK EP
0.01µF
ENV
Det.
HLHL
HA1
R
0.01µF
ENV
Comp.
SP
100Ω
AGC
Det.
PB
Logic
to Rec.
Circuit
AGC
0.1µF
100Ω
HA6
R
0.01µF
normal EP
Peaking
Amp.
LH
HA5
L
0.01µF
0.1µF
100Ω
Chroma
Amp.
H
L
0.1µF
100Ω
Mix.
HA4
R'
0.01µF
SP
HA3
Rec VCC 12V
0.01
µF
3.9kΩ
HASW : L
ON
normal
EP
0.1µF 0.01µF 0.1µF 0.1µF
100µH
HL
47µF
+
D – RecHSW
H
470Ω 470Ω
ICs for VCR
AN3341SC
Playback VCC
Head switching
D-Rec. switching
Ch6 head amp. damping
Ch6 head amp. input
Small-signal ground
Ch5 head amp. input
Ch5 head amp. damping
Ch4 head amp. damping
Ch4 head amp. input
Small-signal ground
Ch3 head amp. input
Ch3 head amp. damping
Ch2 head amp. damping
Ch2 head amp. input
Small-signal ground
Ch1 head amp. input
Ch1 head amp. damping
Rec. current amp. (SP)output
Rec. feedback
Rec. current amp. (EP)output
Pin No.
1
2
3
4
21
Pin name
Rec. V
CC
Rec. current emphasis
Peaking for recording
ENV output
ENV OFF switching
Automatic tracking ground
Automatic tracking output
Automatic tracking detection
Automatic tracking GCA control
Automatic tracking TRAP
Automatic tracking V
CC
Recording Y-input
Chroma output
Large signal ground
Peaking amp. (playback)
Recording C-input
Trick switching
AGC output
AGC. Det
Normal EP/other switching
HASW
22
23
24
25
42
Pin name
Pin No.
526
627
728
829
930
10 31
11 32
17 38
18 39
19 40
20 41
12 33
13 34
14 35
15 36
16 37
■ Pin Descriptions
V
PB V
CC
Parameter Symbol Rating Unit
P
D
T
opr
Tstg
6
V
CC
Supply voltage
(1)
Rec V
CC
13
(2)
430 mW
˚C
˚C
– 55 to +125
– 20 to +70
Storage temperature
Note 1)
Power dissipation
Note 2)
Operating ambient temperature
Note 1)
Note 1) Ta=25˚C except operating ambient temperature and storage temperatures.
Note 2) Allowable power dissipation of the package at Ta=70˚C.
■ Absolute Maximum Ratings
Rec V
CC
Parameter Symbol Range
Operating supply voltage range (1)
4.5V to 5.5V
Operating supply voltage range (2)
11.5V to 12.5V
PB V
CC
■ Recommended Operating Range (Ta = 25˚C)
Loading...