AN3275SB
s
Pin Descriptions
Pin No.
1
2
3
4
5
6
Symbol
V
CC
HMW
RA IN
PA IN
A FIL
MA A LEV
Description
Supply voltage (5 V typ.)
H-mask width period adjustment
Audio recording input
Audio playback input
Audio filter
MOVIE ADVANCE audio
detection level adjustment
7
MA A FIL
MOVIE ADVANCE audio
filter
8
CA A FIL
COMMERCIAL ADVANCE
audio filter
9
CA A LEV
COMMERCIAL ADVANCE
audio detection level adjustment
10
11
12
13
14
15
16
CLR IN
CLR OUT
ENV DET
PB FM IN
HEAD
AMP SW
17
18
ENV ADJ.
V DET OUT
ENV mask level adjustment
Video detection delay
adjustment
36
GND
A DC
A DET
Audio DC
Audio detection latch output
to a microcomputer
E/V mask pulse input
E/V mask pulse output
PB FM envelope detection filter
PB FM envelope input
Head amp. switch pulse input
30
31
32
33
34
35
CA V FIL
CL CAP
C TRAP
VIN
A REF
CA/MA SEL
28
29
MA V FIL
CA V LEV
26
27
N.C
MA V LEV
25
V DET
21
22
23
24
VMD
VMW
VS OUT
SYNC FIL
20
ENV H DET
Pin No.
19
Symbol
ENV L DET
ICs for VCR
Description
PB FM envelope peak
detection (below)
PB FM envelope peak
detection (upper)
V-mask time delay adjustment
V-mask width period adjustment
Vertical sync. signal output
Vertical sync. signal separation
filter
Black picture detection output
to a microcomputer
No connection
MA video detection level
adjustment
MA video filter control
CA video detection level
adjustment
CA video filter control
Capacitor for clamping
Chroma trap filter
Video input
Audio reference
Selection of CA, MA
(CA-LITE)
Signal processing circuit GND
s
Absolute Maximum Ratings
Parameter
Supply voltage
Supply current
Power dissipation
*2
Operating ambient temperature
*1
Storage temperature
*1
Symbol
V
CC
I
CC
P
D
T
opr
T
stg
Rating
5.5
35
450
−20
to
+70
−55
to
+125
Unit
V
mA
mW
°C
°C
Note) *1: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for T
a
=
25°C.
*2: The power dissipation shown is for the IC package at T
a
=
70°C.
2
PANASONIC [ PANASONIC SEMICONDUCTOR ]
