May 1988

2

Philips Semiconductors

Product specification

TDA8421

GENERAL DESCRIPTION

The TDA8421 is a monolithic bipolar integrated stereo sound circuit with a loudspeaker channel (CH1) and a headphone

Features

• Input selector

• Mode selector

• Loudspeaker channel (CH1); with volume control, balance control and mute

• Headphone channel (CH2); with volume control, balance control and mute

• Pseudo stereo and spatial function

• Bass and treble control

• Electrostatic discharge protection diodes

QUICK REFERENCE DATA

PACKAGE OUTLINE

28-lead dual in-line; plastic (SOT117); SOT 117-1; 1996 november 19.

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage (pin 4)

7,5

12

14

V

Input signal handling

2

−−

V

Input sensitivity

full power at the output stage

−

200

−

mV

Signal plus noise-to-noise ratio

(S+N)/N

−

90

−

dB

Total harmonic distortion

THD

−

0,05

−

%

Channel separation

α−

75

−

dB

Volume control range CH1

G

−62

−

16

dB

Treble control range

G

−12

−

12

dB

Bass control range

G

−12

−

15

dB

Volume control range CH2

G

−62

−

0dB