AN7500FHQ 查看數據表（PDF） - Panasonic Corporation

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AN7500FHQ

Audio signal processing IC for 1.5 V headphone stereo

Panasonic Corporation 

ICs for Radio-Cassette, Cassette Deck

AN7500FHQ

s Electrical Characteristics at VCC = 1.2 V, f = 1 kHz, RL = 32, Ta = 25°C (continued)

Parameter

Symbol

Conditions

Min Typ Max Unit

Control block (continued)

N.R. pin current

Sub-buffer on threshold

Sub-buffer off threshold

Sub-buffer pin current

ISW2 V2 = 0.1 V

VSBON Low: SB on

VSBOFF High/open: SB off

ISW10 V10 = 0.1 V

 8 16 µA

  0.4 V

0.8  

V

 20 40 µA

s Terminal Equivalent Circuits

Pin No.

1

1

Equivalent circuit

120 kΩ

VRPF

120 kΩ

GND

2

VRPF

Approx.

2 µA

2 200 Ω

100 kΩ

100 100

kΩ kΩ

Description

FWD/REV/pre-mute:

FWD/REV/pre-mute control

Pre-mute

High voltage: VCC− 0.1 < V1-19

FWD

Pin open

REV

Low voltage: V1-19 < 0.1

N.R. cont.:

N.R. on/off control

N.R. off

Pin open or high voltage:

0.8 V < V2-19 < VCC +0.3 V

N.R. on

Low voltage:

− 0.3 V < V2-19 < 0.4 V

GND

3

Pin 3: N.R. in (R)

34

VRPF Pin 34: N.R. in (L):

VREF

N.R. decoder input

Waveform/voltage

(at VCC = 1.2 V)



RIN = 33 kΩ

0.8 V

Pin 3

34

30 kΩ

50 kΩ

GND

RIN = 30 kΩ (typ.)

DC 0.78 V

7

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