July 1994

2

Philips Semiconductors

Product specification

2 x 12 W hi-fi audio power amplifier

TDA1521

TDA1521Q

GENERAL DESCRIPTION

The TDA1521/TDA1521Q is a dual hi-fi audio power amplifier encapsulated in a 9-lead plastic power package.

The device is especially designed for mains fed applications (e.g. stereo tv sound and stereo radio).

Features

• Requires very few external components

• Input muted during power-on and off

(no switch-on or switch-off clicks)

• Low offset voltage between output and ground

• Excellent gain balance between channels

• Hi-fi according to IEC 268 and DIN 45500

• Short-circuit-proof

• Thermally protected

QUICK REFERENCE DATA

PACKAGE OUTLINES

TDA1521: 9 leads in-line; plastic power (SOT131); SOT131-1; 1996 August 20.

TDA1521Q: 9 leads SIL-bent-to-DIL; plastic power (SOT157); SOT157-2; 1996 August 20.

Stereo applications

Supply voltage range

± 7,5 to ± 21,0 V

Output power at THD = 0,5%,

typ.

12

W

Voltage gain

typ.

30

dB

Gain balance between channels

∆G

v

typ.

0,2

dB

Ripple rejection

SVRR

typ.

60

dB

Channel separation

α

typ.

70

dB

Noise output voltage

typ.

70

µV