TDA1524AN - NXP Semiconductors / Philips Semiconductors

DATA SH EET

Product speciﬁcation

File under Integrated Circuits, IC01 September 1987

INTEGRATED CIRCUITS

TDA1524A

Stereo-tone/volume control circuit

September 1987 2

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

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 d.c. 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

PACKAGE OUTLINE

18-lead DIL; plastic (SOT102); SOT102-1; 1996 July 22.

Supply voltage (pin 3) VP= V3-18 typ. 12 V

Supply current (pin 3) IP= I3typ. 35 mA

Maximum input signal with

d.c. feedback (r.m.s. value) Vi(rms) typ. 2,5 V

Maximum output signal with

d.c. feedback (r.m.s. value) Vo(rms) typ. 3 V

Volume control range Gv−80 to + 21,5 dB

Bass control range at 40 Hz ∆Gv−19 to + 17 dB

Treble control range at 16 kHz ∆Gvtyp. ±15 dB

Total harmonic distortion THD typ. 0,3 %

Output noise voltage (unweighted; r.m.s. value)

at f = 20 Hz to 20 kHz; VP= 12 V;

for max. voltage gain Vno(rms) typ. 310 µV

for voltage gain Gv=−40 dB Vno(rms) typ. 100 µV

Channel separation

at Gv = −20 to + 21,5 dB αcs typ. 60 dB

Tracking between channels

at Gv=−20 to + 26 dB ∆Gvmax. 2,5 dB

Ripple rejection at 100 Hz RR typ. 50 dB

Supply voltage range (pin 3) VP= V3-18 7,5 to 16,5 V

Operating ambient temperature range Tamb −30 to + 80 °C

September 1987 3

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

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.

September 1987 4

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

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

Fig.3 D.C. feedback with filter network for improved signal handling.

September 1987 5

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

RATINGS

D.C. CHARACTERISTICS

VP= V3-18 = 12 V; Tamb = 25 °C; measured in Fig.1; RG≤600 Ω; RL≥4,7 kΩ; CL≤ 200 pF; unless otherwise speciﬁed

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

Supply voltage (pin 3) VP= V3-18 max. 20 V

Total power dissipation Ptot max. 1200 mW

Storage temperature range Tstg −55 to + 150 °C

Operating ambient temperature range Tamb −30 to +80 °C

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

Supply (pin 3)

Supply voltage VP = V3-18 7,5 −16,5 V

Supply current

at VP = 8,5 V IP = I319 27 35 mA

at VP = 12 V IP = I325 35 45 mA

at VP = 15 V IP = I330 43 56 mA

D.C. input levels (pins 4 and 15)

at VP = 8,5 V V4,15-18 3,8 4,25 4,7 V

at VP = 12 V V4,15-18 5,3 5,9 6,6 V

at VP = 15 V V4,15-18 6,5 7,3 8,2 V

D.C. output levels (pins 8 and 11)

under all control voltage conditions

with d.c. feedback (Fig.3)

at VP = 8,5 V V8,11-18 3,3 4,25 5,2 V

at VP = 12 V V8,11-18 4,6 6,0 7,4 V

at VP = 15 V V8,11-18 5,7 7,5 9,3 V

Pin 17

Internal potentiometer supply voltage

at VP = 8,5 V V17-18 3,5 3,75 4,0 V

Contour on/off switch (control by I17)

contour (switch open) −I17 −−0,5 mA

linear (switch closed) −I17 1,5 −10 mA

Application without internal potentiometer

supply voltage at VP ≥ 10,8 V

(contour cannot be switched off)

Voltage range forced to pin 17 V17-18 4,5 −VP/2−VBE V

September 1987 6

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

A.C. CHARACTERISTICS

VP = V3-18 = 8,5 V ; Tamb = 25 °C; measured in Fig.1; contour switch closed (linear position); volume, balance, bass, and

treble controls in mid-position; RG≤ 600 Ω; RL ≥ 4,7 kΩ; CL ≤ 200 pF; f = 1 kHz; unless otherwise speciﬁed

D.C. control voltage range for volume,

bass, treble and balance

(pins 1, 9, 10 and 16 respectively)

at V17-18 = 5 V V1,9,10,16 1,0 −4,25 V

using internal supply V1,9,10,16 0,25 −3,8 V

Input current of control inputs

(pins 1,9,10 and 16) −I1,9,10,16 −−5µA

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

Control range

Max. gain of volume (Fig.5) Gv max 20,5 21,5 23 dB

Volume control range; Gv max/Gv min ∆Gv90 100 −dB

Balance control range; Gv = 0 dB (Fig.6) ∆Gv−−40 −dB

Bass control range at 40 Hz (Fig.7) ∆Gv−−19 to + 17 ± 3dB

Treble control range at 16 kHz (Fig.8) ∆Gv−± 15 ±3−dB

Control characteristics see Fig.9 and 10

Signal inputs, outputs

Input resistance; pins 4 and 15 (note 1)

at gain of volume control:Gv = 20 dB Ri4,15 10 −−kΩ

= −40 dB Ri4,15 −160 −kΩ

Output resistance (pins 8 and 11) Ro8,11 −−300 Ω

Signal processing

Power supply ripple rejection

at VP(rms) ≤ 200 mV; f = 100 Hz; Gv = 0 dB RR 35 50 −dB

Channel separation (250 Hz to 10 kHz)

at Gv = −20 to + 21,5 dB αcs 46 60 −dB

Spread of volume control with

constant control voltage V1-18 = 0,5 V17-18 ∆Gv−−±3dB

Gain tolerance between left and right

channel V16-18 = V1-18 = 0,5 V17-18 ∆Gv,L-R −−1,5 dB

Tracking between channels

for Gv= 21,5 to −26 dB

f = 250 Hz to 6,3 kHz; balance adjusted at

Gv = 10 dB ∆Gv−−2,5 dB

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

September 1987 7

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Signal handling with d.c. feedback (Fig.3)

Input signal handling

at VP = 8,5 V; THD = 0,5%;

f = 1 kHz (r.m.s. value) Vi(rms) 1,4 −−V

at VP = 8,5 V; THD = 0,7%;

f = 1 kHz (r.m.s. value) Vi(rms) 1,8 2,4 −V

at VP = 12 V; THD = 0,5%;

f = 40 Hz to 16 kHz (r.m.s. value) Vi(rms) 1,4 −−V

at VP = 12 V; THD = 0,7%;

f = 40 Hz to 16 kHz (r.m.s. value) Vi(rms) 2,0 3,2 −V

at VP = 15 V; THD = 0,5%;

f = 40 Hz to 16 kHz (r.m.s. value) Vi(rms) 1,4 −−V

at VP = 15 V; THD = 0,7%;

f = 40 Hz to 16 kHz (r.m.s. value) Vi(rms) 2,0 3,2 −V

Output signal handling (note 2 and note 3)

at VP = 8,5 V; THD = 0,5%;

f = 1 kHz (r.m.s. value) Vo(rms) 1,8 2,0 −V

at VP = 8,5 V; THD = 10%;

f = 1 kHz (r.m.s. value) Vo(rms) −2,2 −V

at VP = 12 V; THD = 0,5%;

f = 40 Hz to 16 kHz (r.m.s. value) Vo(rms) 2,5 3,0 −V

at VP = 15 V; THD = 0,5%;

f = 40 Hz to 16 kHz (r.m.s. value) Vo(rms) −3,5 −V

Noise performance (VP = 8,5 V)

Output noise voltage (unweighted; Fig.15)

at f = 20 Hz to 20 kHz (r.m.s. value)

for maximum voltage gain (note 4) Vno(rms) −260 −µV

for Gv = −3 dB (note 4) Vno(rms) −70 140 µV

Output noise voltage; weighted as DIN 45405

of 1981, CCIR recommendation 468-2 (peak value)

for maximum voltage gain (note 4) Vno(m) −890 −µV

for maximum emphasis of bass and treble

(contour off; Gv = −40 dB) Vno(m) −360 −µV

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

September 1987 8

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Notes to characteristics

1. Equation for input resistance (see also Fig.4)

2. Frequencies below 200 Hz and above 5 kHz have reduced voltage swing, the reduction at 40 Hz and at 16 kHz is

30%.

3. In the event of bass boosting the output signal handling is reduced. The reduction is 1 dB for maximum bass boost.

4. Linear frequency response.

5. For peak values add 4,5 dB to r.m.s. values.

Noise performance (VP = 12 V)

Output noise voltage (unweighted; Fig.15)

at f = 20 Hz to 20 kHz (r.m.s. value; note 5)

for maximum voltage gain (note 4) Vno(rms) −310 −µV

for Gv = −16 dB (note 4) Vno(rms) −100 200 µV

Output noise voltage; weighted as DIN 45405

of 1981, CCIR recommendation 468-2 (peak value)

for maximum voltage gain (note 4) Vno(m) −940 −µV

for maximum emphasis of bass and treble

(contour off; Gv = −40 dB) Vno(m) −400 −µV

Noise performance (VP = 15 V)

Output noise voltage (unweighted; Fig.15)

at f = 20 Hz to 20 kHz (r.m.s. value; note 5)

for maximum voltage gain (note 4) Vno(rms) −350 −µV

for Gv = 16 dB (note 4) Vno(rms) −110 220 µV

Output noise voltage; weighted as DIN 45405

of 1981, CCIR recommendation 468-2 (peak value)

for maximum voltage gain (note 4) Vno(m) −980 −µV

for maximum emphasis of bass and treble

(contour off; Gv = −40 dB Vno(m) −420 −µV

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

Ri160 kΩ

------------------- Gvmax 12=;=

September 1987 9

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.4 Input resistance (Ri) as a function of gain of volume control (Gv). Measured in Fig.1.

Fig.5 Volume control curve; voltage gain (Gv) as a function of control voltage (V1-18). Measured in Fig.1

(internal potentiometer supply from pin 17 used); VP = 8,5 V; f = 1 kHz.

September 1987 10

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.6 Balance control curve; voltage gain (Gv) as a function of control voltage (V16-18). Measured in Fig.1

(internal potentiometer supply from pin 17 used); VP = 8,5 V.

Fig.7 Bass control curve; voltage gain (Gv) as a function of control voltage (V9-18). Measured in Fig.1 with

single-pole filter (internal potentiometer supply from pin 17 used); VP = 8,5 V; f = 40 Hz.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.8 Treble control curve; voltage gain (Gv) as a function of control voltage (V10-18). Measured in Fig.1

(internal potentiometer supply from pin 17 used); VP = 8,5 V; f = 16 kHz.

Fig.9 Contour frequency response curves; voltage gain (Gv) as a function of audio input frequency.

Measured in Fig.1 with single-pole filter; VP = 8,5 V.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.10 Contour frequency response curves; voltage gain (Gv) as a function of audio input frequency.

Measured in Fig.1 with double-pole filter; VP = 8,5 V.

Fig.11 Tone control frequency response curves; voltage gain (Gv) as a function of audio input frequency.

Measured in Fig.1 with single-pole filter; VP = 8,5 V.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.12 Tone control frequency response curves; voltage gain (Gv) as a function of audio input frequency.

Measured in Fig.1 with double-pole filter; VP = 8,5 V.

Fig.13 Total harmonic distortion (THD); as a function of audio input frequency. Measured in Fig.1; VP = 8,5 V;

volume control voltage gain at Gv20 log Vo

------ 0 dB.==

September 1987 14

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

Fig.14 Total harmonic distortion (THD); as a function of output voltage (Vo). Measured in Fig.1;

VP = 8,5 V; fi = 1 kHz.

(1) VP = 15 V.

(2) VP = 12 V.

(3) VP = 8,5 V.

Fig.15 Noise output voltage (Vno(rms); unweighted); as a function of voltage gain (Gv).

Measured in Fig.1; f = 20 Hz to 20 kHz.

September 1987 15

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

PACKAGE OUTLINE

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

IEC JEDEC EIAJ

SOT102-1 93-10-14

95-01-23

UNIT A

max. 12 b

1(1) (1) (1)

b2cD E e M Z

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

min. A

max. bmax.

1.40

1.14 0.53

0.38 0.32

0.23 21.8

21.4 6.48

6.20 3.9

3.4 0.2542.54 7.62 8.25

7.80 9.5

8.3 0.854.7 0.51 3.7

inches 0.055

0.044 0.021

0.015 0.013

0.009

1.40

1.14

0.055

0.044 0.86

0.84 0.26

0.24 0.15

0.13 0.010.10 0.30 0.32

0.31 0.37

0.33 0.0330.19 0.020 0.15

(e )

seating plane

pin 1 index

0 5 10 mm

scale

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

DIP18: plastic dual in-line package; 18 leads (300 mil) SOT102-1

September 1987 16

Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1524A

SOLDERING

Introduction

There is no soldering method that is ideal for all IC

packages. Wave soldering is often preferred when

through-hole and surface mounted components are mixed

on one printed-circuit board. However, wave soldering is

not always suitable for surface mounted ICs, or for

printed-circuits with high population densities. In these

situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.

A more in-depth account of soldering ICs can be found in

our

“IC Package Databook”

(order code 9398 652 90011).

Soldering by dipping or by wave

The maximum permissible temperature of the solder is

260 °C; solder at this temperature must not be in contact

with the joint for more than 5 seconds. The total contact

time of successive solder waves must not exceed

5 seconds.

The device may be mounted up to the seating plane, but

the temperature of the plastic body must not exceed the

specified maximum storage temperature (Tstg max). If the

printed-circuit board has been pre-heated, forced cooling

may be necessary immediately after soldering to keep the

temperature within the permissible limit.

Repairing soldered joints

Apply a low voltage soldering iron (less than 24 V) to the

lead(s) of the package, below the seating plane or not

more than 2 mm above it. If the temperature of the

soldering iron bit is less than 300 °C it may remain in

contact for up to 10 seconds. If the bit temperature is

between 300 and 400 °C, contact may be up to 5 seconds.

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

Data sheet status

Objective speciﬁcation This data sheet contains target or goal speciﬁcations for product development.

Preliminary speciﬁcation This data sheet contains preliminary data; supplementary data may be published later.

Product speciﬁcation This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.