AN7500FHQ Просмотр технического описания (PDF) - Panasonic Corporation

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AN7500FHQ

Audio signal processing IC for 1.5 V headphone stereo

Panasonic Corporation 

AN7500FHQ

ICs for Radio-Cassette, Cassette Deck

s Terminal Equivalent Circuits (continued)

Pin No.

Equivalent circuit

Description

4

33

Pin 4

33

VREF

7.5 kΩ

VRPF

6.7 kΩ

Pin 4: N.R. out (R)

Pin 33: N.R. out (L):

N.R. decoder output

11.6 kΩ

Waveform/voltage

(at VCC = 1.2 V)

RO = 300 Ω (typ.)

DC 0.78 V

5

32

Pin 5

32 200

Ω

GND

VREF

VRPF

Pin 5: SC in (R)

Pin 32: SC in (L):

Side chain input

EVR

RIN: Variable according

to inpuit signal

DC 0.78 V

6

31

VREF

GND

VRPF

Pin 6: WAMP (R)

Pin 31: WAMP (L):

Weighting amp. filter pin

DC 0.78 V

Pin 6 270 Ω

31

7

30

Pin 7

30

GND

VRPF

Pin 7: VC LPF (R)

Pin 30: VC LPF (L):

Control voltage ripple filter pin

0V

(Add external resistor

without signal)

GND

8

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