Philips tda1526 DATASHEETS

INTEGRATED CIRCUITS

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TDA1526

Stereo-tone/volume control circuit

Product speciﬁcation File under Integrated Circuits, IC01

May 1992

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit 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

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.

potentiometers.

QUICK REFERENCE DATA

PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT

Supply voltage (pin 3) V Supply current (pin 3) V

Signal handling with DC feedback V

= 12 V I

= 8.5 to 15 V;

7.5 12 16.5 V 25 35 45 mA

THD = 0.7%; f = 1 kHz Input signal handling (RMS value) V Output signal handling (RMS value) notes 2 and 3 V

(rms) 1.8 2.0 − V

i o(rms)

1.8 2.0 − V

Control range

Maximum gain of volume see Fig.4 G Volume control range G Balance control range G

v max/Gv min

= 0 dB; see Fig.5 ∆G

∆G

Bass control range at 40 Hz; see Fig.6 ∆G

v max

v v v

20.5 21.5 23 dB 90 100 − dB

−−40 − dB

−−19 to − dB +17 ±3

Treble control range at 16 kHz; see Fig.7 ∆G

−±15 ±3 − dB

Total harmonic distortion THD −−0.5 %

Noise performance

VP = 12 V

Output noise voltage (unweighted)

at f = 20 Hz to 20 kHz RMS value; note 4

= −16 dB note 5 V

for G

no(rms)

− 100 200 µV

Signal processing

Channel separation

at G

= −20 to 21.5 dB f = 250 Hz to 10 kHz α

46 60 − dB

Tracking between channels f = 250 Hz to 6.3 kHz;

balance at G

for G

= 21.5 to −26 dB ∆G

Ripple rejection V

P(rms)

f = 100 Hz; G

Operating ambient temperature range T

= 10 dB

= ≤ 200 mV;

= 0 dB RR 35 50 − dB

amb

−−2.5 dB

−30 −+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

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

May 1992 3

Fig.1 Block diagram and application circuit with single-pole filter.

(1) Series resistor is recommended in the event of the capacitive loads exceeding 200 pF.

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.2 Double-pole low-pass filter for improved bass-boost.

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

PARAMETER SYMBOL MIN. MAX. UNIT

Supply voltage (pin 3) V Total power dissipation P Storage temperature range T Operating ambient temperature range T

P tot stg amb

− 20 V

− 1200 mW

−55 + 150 °C

−30 + 80 °C

May 1992 4

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

DC CHARACTERISTICS

= V

Supply (pin 3)

Supply voltage V Supply current

DC input levels (pins 4 and 15)

DC output levels (pins 8 and 11)

Pin 17

Internal potentiometer supply voltage

Contour on/off switch (control by I

Application without internal potentiometer

Voltage range forced to pin 17 V DC control voltage range for volume,

Input current of control inputs

= 12 V; T

3-18

= 25 °C; measured in Fig.1; RG≤ 600 Ω; RL≥ 4.7 kΩ; CL≤ 200 pF; unless otherwise speciﬁed

amb

P ARAMETER SYMBOL MIN. TYP. MAX. UNIT

at V

= 8.5 V IP = I

at V

= 12 V IP = I

= 15 V IP = I

at V

= 8.5 V V

at V

= 12 V V

= 15 V V

at V

under all control voltage conditions with DC feedback

= 8.5 V V

at V

= 12 V V

at V

= 15 V V

= 8.5 V V

at V

)

contour (switch open) −I linear (switch closed) −I

supply voltage at V

≥ 10.8 V

(contour cannot be switched off)

bass, treble and balance (pins 1, 9, 10 and 16 respectively) at V

= 5 V V

17-18

using internal supply V

(pins 1, 9, 10 and 16) −I

= V

3-18

3 3 3

4, 15-18 4, 15-18 4, 15-18

8, 11-18 8, 11-18 8, 11-18

17-18

17 17

17-18

1,9,10,16 1,9,10,16

1,9,10,16

7.5 − 16.5 V

19 27 35 mA 25 35 45 mA 30 43 56 mA

3.8 4.25 4.7 V

5.3 5.9 6.6 V

6.5 7.3 8.2 V

3.3 4.25 5.2 V

4.6 6.0 7.4 V

5.7 7.5 9.3 V

3.5 3.75 4.0 V

−−0.5 mA

1.5 − 10 mA

4.5 − VP/2−VBEV

1.0 − 4.25 V

0.25 − 3.8 V

−−5µA

May 1992 5

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