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TDA1526

Stereo-tone/volume control circuit

Philips Electronics 

Philips Semiconductors

Stereo-tone/volume control circuit

Product specification

TDA1526

GENERAL DESCRIPTION

The device is designed as an active stereo-tone/volume

control for car radios, TV receivers and mains-fed

equipment. It includes functions for bass and treble

control, volume control with built-in contour (can be

switched off) and balance. All these functions can be

controlled by DC voltages or by single linear

potentiometers.

Features

• Few external components necessary

• Low noise due to internal gain

• Bass emphasis can be increased by a double-pole

low-pass filter

• Wide power supply voltage range.

QUICK REFERENCE DATA

PARAMETER

Supply voltage (pin 3)

Supply current (pin 3)

Signal handling with DC feedback

Input signal handling (RMS value)

Output signal handling (RMS value)

Control range

Maximum gain of volume

Volume control range

Balance control range

Bass control range

CONDITIONS

VP = 12 V

VP = 8.5 to 15 V;

THD = 0.7%; f = 1 kHz

notes 2 and 3

see Fig.4

Gv max/Gv min

Gv = 0 dB; see Fig.5

at 40 Hz; see Fig.6

Treble control range

Total harmonic distortion

Noise performance

Output noise voltage (unweighted)

at f = 20 Hz to 20 kHz

for Gv = −16 dB

Signal processing

Channel separation

at Gv = −20 to 21.5 dB

Tracking between channels

for Gv = 21.5 to −26 dB

Ripple rejection

Operating ambient temperature range

at 16 kHz; see Fig.7

VP = 12 V

RMS value; note 4

note 5

f = 250 Hz to 10 kHz

f = 250 Hz to 6.3 kHz;

balance at Gv = 10 dB

VP(rms) = ≤ 200 mV;

f = 100 Hz; Gv = 0 dB

SYMBOL MIN.

VP

7.5

IP

25

TYP.

12

35

MAX.

16.5

45

UNIT

V

mA

Vi(rms) 1.8

2.0

−

V

Vo(rms)

1.8

2.0

−

V

Gv max

20.5 21.5 23

dB

∆Gv

90

100 −

dB

∆Gv

−

−40 −

dB

∆Gv

−

−19 to −

dB

+17 ±3

∆Gv

−

THD

−

±15 ±3 −

dB

−

0.5

%

Vno(rms) −

100 200 µV

αcs

46

60

−

dB

∆Gv

RR

Tamb

−

−

35

50

−30 −

2.5

dB

−

dB

+ 85 °C

For explanation of notes see Notes to the characteristics.

PACKAGE OUTLINE: 18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 06.

May 1992

2

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