Datasheet tda1526 DATASHEETS (Philips)

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INTEGRATED CIRCUITS

DATA SH EET

TDA1526

Stereo-tone/volume control circuit

Product speciﬁcation File under Integrated Circuits, IC01

May 1992

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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.

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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.

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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

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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

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

AC CHARACTERISTICS

= V

treble controls in mid-position; R

Control range

Maximum gain of volume (Fig.4) G Volume control range; G Balance control range; G Bass control range at 40 Hz (Fig.6) ∆G Treble control range at 16 kHz (Fig.7) ∆G Contour characteristics see Figs 9 and 10

Signal inputs, outputs

Input resistance; pins 4 and 15 (note 1)

Output resistance (pins 8 and 11) R

Signal processing

Power supply ripple rejection

Channel separation (250 Hz to 10 kHz)

Spread of volume control with

Gain tolerance between left and right

Tracking between channels

Signal handling with DC feedback

Input signal handling

Output signal handling (note 2 and note 3)

Noise performance (V Output noise voltage (unweighted; Fig.14)

= 8.5 V; T

3-18

= 25 °C; measured in Fig.1; contour switch closed (linear position); volume, balance, bass, and

amb

≤ 600 Ω; RL≥ 4.7 kΩ; CL≤ 200 pF; f = 1 kHz; unless otherwise speciﬁed

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

v max/Gv min

= 0 dB (Fig.5) ∆G

at gain of volume control: Gv = 20 dB R

= −40 dB R

at V

≤ 200 mV; f = 100 Hz; Gv = 0 dB RR 35 50 − dB

P(rms)

at Gv= −20 to + 21.5 dB α

constant control voltage V

channel V

16-18

= V

1-18

= 0.5 V

1-18

= 0.5 V

17-18

for Gv = 21.5 to −26 dB f = 250 Hz to 6.3 kHz; balance adjusted at

= 10 dB ∆G

at V

= 8.5 V − 15 V; THD = 0.7%;

f = 1 kHz (RMS value) V

at VP = 8.5 V; THD = 0.7%; f = 1 kHz (RMS value) V

= 12 V)

at f = 20 Hz to 20 kHz (RMS value; note 4) for G

= −16 dB (note 5) V

v max

∆G

v v v v

i4, 15 i4, 15 o8, 11

∆G

v, L-R

) 1.8 2.0 − V

i(rms

) 1.8 2.0 − V

o(rms

) − 100 200 µV

no(rms

20.5 21.5 23 dB 90 100 − dB

−−40 − dB

− −19 to + 17 ± 3dB

−± 15 ± 3 − dB

10 −−kΩ

− 160 − kΩ

−−300 Ω

46 60 − dB

−−±3dB

−−1.5 dB

−−2.5 dB

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Notes to the characteristics

1. Equation for input resistance (see also Fig.3) 160 kΩ

------------------- -

2. Frequencies below 200 Hz and above 5 kHz have reduced voltage swing, the reduction at 40 Hz and 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. For peak values add 4.5 dB to RMS values.

5. Linear frequency response.

vmax

12.=;=

Fig.3 Input resistance (Ri) as a function of gain of volume control (Gv). Measured in Fig.1.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.4 Volume control curve; voltage gain (Gv) as

a function of control voltage (V

1-18

). Measured in Fig.1 (internal potentiometer supply from pin 17 used); VP = 8.5 V; f = 1 kHz.

Fig.5 Balance control curve; voltage gain (Gv) as

a function of control voltage (V

16-18

). Measured in Fig.1 (internal potentiometer supply from pin 17 used); VP = 8.5 V.

Fig.6 Bass control curve; voltage gain (Gv) as a

function of control voltage (V

9-18

). 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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Fig.7 Treble control curve; voltage gain (Gv) as a

function of control voltage (V

10-18

). Measured in Fig.1 (internal potentiometer supply from pin 17 used); VP = 8.5 V; f = 16 kHz.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.8 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.

Fig.9 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.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.10 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.

Fig.11 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.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.12 Total harmonic distortion (THD); as a function of audio input frequency.

Measured in Fig.1; V

------- V

o i

= 8.5 V; volume control voltage gain at

0dB=log=

Fig.13 Total harmonic distortion (THD); as a function of output voltage (Vo).

Measured in Fig.1; VP = 8.5 V; fi = 1 kHz.

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

Fig.14 Noise output voltage (V

Measured in Fig.1; VP = 15 V; f = 20 Hz to 20 kHz.

; unweighted); as a function of voltage gain (Gv).

no(rms)

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

PACKAGE OUTLINE

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

seating plane

pin 1 index

SOT102-1

w M

(e )

0 5 10 mm

scale

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

UNIT

max.

inches

Note

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

OUTLINE

VERSION

SOT102-1

min.

max.

IEC JEDEC EIAJ

1.40

1.14

0.055

0.044

0.53

0.38

0.021

0.015

cD E e M

0.32

1.40

0.23

1.14

0.013

0.055

0.009

0.044

REFERENCES

21.8

21.4

0.86

0.84

May 1992 13

(1) (1)

6.48

6.20

0.26

0.24

3.9

8.25

3.4

7.80

0.15

0.32

0.13

0.31

EUROPEAN

PROJECTION

0.37

0.33

9.5

8.3

max.

0.2542.54 7.62

ISSUE DATE

0.010.10 0.30

93-10-14 95-01-23

0.854.7 0.51 3.7

0.0330.19 0.020 0.15

(1)

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Philips Semiconductors Product speciﬁcation

Stereo-tone/volume control circuit TDA1526

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

“IC Package Databook”

our

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.

DEFINITIONS

(order code 9398 652 90011).

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 (T 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.

stg max

). If the

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.

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.

May 1992 14