AN7353S Datasheet, PDF (1/3 Pages) Panasonic Semiconductor – Record Equalizer Amp. for Stereo Cassette Deck

ICs for Cassette, Cassette Deck
AN7353S
Record Equalizer Amp. for Stereo Cassette Deck
s Overview
The AN7353S is a bipolar IC developed as a record
equalizer amp. of analogue cassette deck. Particularly in
order to support the automatic adjustment, it incorporates
various volume filter circuits and control functions. Also, it
has realized great reduction of external parts required.
s Features
• Fine adjustment of equalizer characteristics (frequency
characteristics and gain) in medium and high frequency
band by DC control
• Volume for total gain adjustment built-in (±11dB)
• With pin for low frequency band boost
• Drive circuit for current output built-in
Unit : mm
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
0.3
7.2±0.3
9.4±0.3
24-Lead SOP Package (SOP024-P-0375)
s Block Diagram
REC.
GND IN _(L) CM
CH Boost (L)
CF
24
23
22
21 20
19
EQ
OUT (L)
18
VR
IN (L)
17
Vout (L)
16
Iout (L) VCC CL
15 14 13
Rec.
L.P.F
fm
V– I
GH
V– I
Q
fp
Gp
V– I
V– I
V– I
Amp.
GT
V– I
Amp.
V– I
Conv.
Input
Sw.
Rec.
Q
fp
Q
fp
V– I
V– I
L.P.F
fm
V– I
fm
Gp
GH
Gp
V– I
Amp.
GH
V– I
GT (L)
GT (R)
GT
V– I
Output
Sw.
Amp.
VREF
Ireg –
V– I
Conv.–
1
2
3
4
5
6
–VCC REC. IN
CQ Boost (R)
CP
IN (R) MUTE
78
EQ
VR
OUT (R) IN (R)
9
Vout (R)
10 11 12
Iout (R) NC CR