Aiwa AMNT-9 Owners manual

Audio Power

Audio power
amplifiers

Designer’s guide - October 1996

1

Audio Amplifier ICs

AUDIO AMPLIFIER IC

S DESIGNER’S GUIDE

Contents

Section Page

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2 Product survey and page reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

In application sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

In power output sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

3 Audio amplifier ICs for portable radio/audio equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

4 Audio amplifier ICs for car radios/power boosters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

5 Audio amplifier ICs for mains-powered systems including hi-fi and TV sound . . . . . . . . . . . . . . . . 5-1

Appendices

1 Further information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Application notes and leaflet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

2 Index of audio amplifier ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

1-1

NOTE

Purchase of Philips I2C components
conveys a license under the Philips I2C
patent to use the components in the I2C
system, provided the system conforms to
the I2C specifications defined by Philips.

Audio Amplifier ICs

INTRODUCTION

1-2

1

Few people realize that one of the world’s first ICs was an audio
power amplifier from Philips. This delivered a mere 25 mW into
a hearing-aid earpiece and incorporated just three transistors and
2 resistors.

Not surprisingly, we’ve made many advances since that initial
introduction. Advances that have led to ICs such as the
TDA8551 incorporating digital volume control with a control
range of more than 80 dB. Or the hi-fi TDA1514A, which can
deliver 50 W – more than two thousand times the power of that
first integrated amplifier.

These are just two of the extensive range of audio ICs we now
supply for a whole host of applications – including portable
radio and recorders, car radios, multimedia systems, hi-fi TV,
radio and music centres, and digital audio systems.

Integrated power

A major feature of our latest range is the high degree of func­tional power integrated within each package. A functional power
that dramatically reduces the peripheral component count of
finished equipment, leading to:

• lower system development costs

• smaller, more compact circuitry

• far fewer production problems

• significantly lower production costs.

What’s more, advanced internal protection circuitry completely
eliminates danger of damage from thermal runaway, short­circuits and electrostatic discharge. Providing a level of circuit
reliability formerly the exclusive preserve of professional systems,
and, moreover, providing you with a solid guarantee of quality
and reliability in your own systems.

A valuable aid to designers

In the following pages you’ll find our complete range of audio
amplifiers. Intended principally as a designer’s first selection
guide, the pages give the most important parameters, or at least,
those that feature prominently when design criteria are initially
being considered. Used in conjunction with our Data
Handbook IC01 (which gives more detailed information), this
guide provides audio system designers with a ready means of
selecting the most appropriate components for their designs.

The publication is divided into three application areas: portable
radio/audio, car radio and mains-powered systems. Many prod­ucts, however, may be suitable for several application areas: car
audio systems and mains-powered multimedia PCs for example.
What’s more, many of today’s applications for audio amplifier
ICs, e.g. musical greeting cards, were unheard of just a few years
ago. This means that any subdivision such as that given in this
guide can be only a preliminary indication of a product’s suit­ability for a particular application. In using this guide, therefore,
designers should cast their net as wide as possible and should
consider all likely candidates when looking for a suitable audio
IC for their application.

INTEGRATED POWER WITH PHILIPS AUDIO AMPLIFIER ICs

2

Audio Amplifier ICs

PRODUCT SURVEY IN APPLICATION SEQUENCE

2-1

PRODUCT SURVEY

PRODUCT SURVEY

2

Audio Amplifier ICs

2-2

For portable radio/audio equipment

Type No. RMS power (W) Supply (V) Package Remarks Page

TDA1011 6.5 3.6 to 24 SIL9MP Separate pre/power amplifiers 3-2
TDA1015 4 3.6 to 18 SIL9MP Separate pre/power amplifiers 3-2
TDA1015T 0.5 3.6 to 12 SO8 Separate pre/power amplifiers 3-2
TDA1016 2 3.6 to 15 DIP16 Record/playback + ALC 3-3
TDA1308T 2 × 0.06 (d = 0.1%) 3 to 7 SO8 Stereo headphone driver 3-4

TDA7050(T) [0.15]/2 × 0.075 1.6 to 6 DIP8, SO8 No peripheral components 3-5
TDA7052/ 1 3 to 18 DIP8 No peripheral components 3-6
TDA7053 2 × 1 No peripheral components
TDA7052A(AT)/ 1(0.5) 4.5 to 18 DIP8, SO8 DC volume control; 36 dB gain 3-7
TDA7052B(BT) TDA7052A(AT) with 40 dB gain
TDA7053A(AT) 2 × 1(2 × 0.5) 4.5 to 18 DIP16, SO16 DC volume control; 40 dB gain 3-8
TDA7056/ 3 3 to 18 SIL9MP No peripheral components 3-9
TDA7057Q 2 × 3 SIL13P No peripheral components
TDA7056A/ 5 4.5 to 18 SIL9MP DC volume control; 36 dB gain 3-10
TDA7056B TDA7056A with 40 dB gain
TDA7057AQ 2 × 5 4.5 to 18 SIL13P DC volume control; 40 dB gain 3-11
TDA8541(T) 1 2.2 to 18 DIP8, SO8 Few peripheral components 3-12
TDA8542(T) 2 × 1 2.2 to 18 DIP16, SO16L Few peripheral components 3-13
TDA8543(T) 2 2.2 to 18 DIP16, SO16 Few peripheral components 3-14
TDA8547(T) 2 × 1 2.2 to 18 DIP16, SO16L Standby per channel 3-15
TDA8551(T) 1 2.7 to 6 DIP8, SO8 Digital volume control 3-16
TDA8558(T) 0.125 1.8 to 18 DIP8, SO8 Power saving muting facility 3-17
TDA8559(T) 0.035 1.8 to 30 DIP16, SO16 Stereo headphone amplifier 3-18

Note to tables: Output powers are quoted at d

tot

= 10% unless stated otherwise and depend on supply voltage and loudspeaker

impedance. Figures in square brackets refer to performance in BTL configuration.

PRODUCT SURVEY IN APPLICATION SEQUENCE

2-3

Audio Amplifier ICs

2

For car radios/power boosters

Type No. RMS power (W) Supply (V) Package Remarks Page

TDA1010A/ 3.4 to 12 6 to 24 SIL9MP Separate pre/power amplifiers 4-2
TDA1020 + load dump prot., standby, HF limit
TDA1510AQ/ 2 × 12[1 × 24] 6 to 18 SIL13P 1-end/BTL, 26 - 50[32 - 56] dB gain 4-3
TDA1515BQ TDA1510AQ with LS protection
TDA1516BQ/ 2 × 12[1 × 24] 8.5 to 18 SIL13P 2 × 1-end/1 × BTL, 20[26] dB gain 4-4
TDA1516CQ/ TDA1516BQ but BTL only
TDA1518BQ TDA1516BQ with 40[46] dB gain
TDA1517(P)/ 2 × 6 8.5 to 18 SIL9MP, DIP18 20 dB gain 4-5
TDA1519 TDA1517 with 40 dB gain
TDA1519A/ 2 × 11[1 × 22] 8.5 to 17.5 SIL9P 2 × 1-end/1 × BTL, 40[46] dB gain 4-6
TDA1519B 2 × 6[1 × 12] 8.5 to 18 SIL9MP
TDA1552Q/ [2 × 22] 8.5 to 18 SIL13P Dual BTL amplifiers, [26] dB gain 4-7
TDA1553Q/ TDA1552Q with LS protection
TDA1553CQ/ TDA1553Q with CMOS mode switch
TDA1557Q TDA1553Q with [46] dB gain
TDA1554Q/ 4 × 11[2 × 22] 8.5 to 18 SIL17P 1-end/BTL, 20[26] dB gain 4-8
TDA1555Q/ TDA1554Q with distortion detector
TDA1558Q TDA1554Q with 40[46] dB gain
TDA1556Q [2 ×22] 8.5 to 18 SIL17P Dual BTL, diff. inputs, [26] dB gain 4-9
TDA1560Q [40] 8 to 18 SIL17P BTL class-H amplifier, [30] dB gain 4-10
TDA1561Q 2 ×23 6 to 18 DBS13P Automatic switching to high-power 4-11

mode when needed
TDA8560Q/ [2 × 40] 8.5 to 18 SIL13P Dual BTL amplifiers. [40] dB gain 4-12
TDA8563Q/ TDA8560Q with [26] dB gain
TDA8563AQ TDA8563Q with 2.2% THD

(10% with TDA8563Q)
TDA8561Q/ 4 × 12[2 × 24] 8.5 to 18 SIL17P 4 × 1-end/dual BTL, 20[26] dB gain 4-13
TDA8564Q TDA8561Q with 40[46] dB gain
TDA8562Q/ 4 × 12 8.5 to 18 SIL17P 4 × 1-end amplifier, 20 dB gain 4-14
TDA8565Q TDA8562Q with 40 dB gain
TDA8566Q 2 ×25 8.5 to 18 DBS17P Differential inputs 4-15
TDA8567Q/ 4 × 25 8.5 to 18 DBS23P Quad BTL amplifier, 4 Ω load, [26] dB gain 4-16
TDA8568Q/ TDA8567Q with [40] dB gain
TDA8569Q TDA8567Q driving 2 Ω load
TDA8574(T) dual line driver 6 to 12 DIP16, SO16 Class H high output level 4-17
TDA8576T dual line driver 6 to 12 SO16 Class H high output level 4-18
TDA8577/ dual line driver 5 to 18 SIL9MP Completely separated inputs 4-19
TDA8578(T)/ DIP16, SO16 Completely separated inputs
TDA8579(T) DIP8, SO8 Inverting inputs linked

Note to tables: Output powers are quoted at d

tot

= 10% unless stated otherwise and depend on supply voltage and loudspeaker

impedance. Figures in square brackets refer to performance in BTL configuration.

PRODUCT SURVEY IN APPLICATION SEQUENCE

2-4

2

Audio Amplifier ICs

PRODUCT SURVEY IN APPLICATION SEQUENCE

For mains-powered systems including hi-fi and TV sound

Type No. RMS power (W) Supply (V) Package Remarks Page

TDA1013B 4 to 10 10 to 40 SIL9MP DC volume control 5-2
TDA1514A 50 (d = 0.1%) 15 to 60 SIL9P Super hi-fi, 20 - 46 dB gain 5-3/4
TDA1521A/ 2 × 6 (d = 0.5%) 15 to 42 SIL9MP Automatic mute; hi-fi 5-5
TDA2615 TDA1521A with extra mute pin
TDA1521(Q)/ 2 × 12 (d = 0.5%) 15 to 42 SIL9P Automatic mute; hi-fi 5-5
TDA2616(Q) TDA1521(Q) with extra mute pin
TDA2611A 4 to 10 6 to 35 SIL9MP Adjustable input impedance 5-6
TDA2613/ 6 (d = 0.5%) 15 to 42 SIL9MP Automatic mute; hi-fi 5-6
TDA2614 TDA2613 with extra mute pin

Note to tables: Output powers are quoted at d

tot

= 10% unless stated otherwise and depend on supply voltage and loudspeaker

impedance. Figures in square brackets refer to performance in BTL configuration.

2-5

Audio Amplifier ICs

2

Very low power (less than 1 W)

Type No. RMS power (W) Supply (V) Package Remarks Application Page

TDA8574(T) dual line driver 6 to 12 DIP16, SO16 Class H high output level c, m 4-17
TDA8576T dual line driver 6 to 12 SO16 Class H high output level c, m 4-18
TDA8577 dual line driver 5 to 18 SIL9MP Completely separated inputs c, m 4-19
TDA8578(T) dual line driver 5 to 18 DIP16, SO16 Completely separated inputs c, m 4-19
TDA8579(T) dual line driver 5 to 18 DIP8, SO8 Inverting inputs linked c, m 4-19
TDA8559(T) 0.035 1.8 to 30 DIP16, SO16 Stereo headphone amplifier p 3-18
TDA1308T 2 × 0.06 (d = 0.1%) 3 to 7 SO8 Stereo headphone driver p, c, m 3-4
TDA7050(T) [0.15]/2 × 0.075 1.6 to 6 DIP8, SO8 No peripheral components p 3-5

TDA1015T 0.5 3.6 to 12 SO8 Separate pre/power amplifiers p 3-2

Low power (1 W to 5 W)

Type No. RMS power (W) Supply (V) Package Remarks Application Page

TDA8558(T) 0.125 1.8 to 18 DIP8, SO8 Power saving muting facility p, m 3-17
TDA7052A(AT)/ 1(0.5) 4.5 to 18 DIP8, SO8 DC volume control; 36 dB gain p, m 3-7
TDA7052B(BT) TDA7052A(AT) with 40 dB gain
TDA7052/ 1 3 to 18 DIP8 No peripheral components p, m 3-6
TDA7053 2 × 1 DIP16 No peripheral components
TDA8541(T) 1 2.2 to 18 DIP8, SO8 Few peripheral components p, m 3-12
TDA8551(T) 1 2.7 to 6 DIP8, SO8 Digital volume control p, m 3-16
TDA8542(T) 2 × 1 2.2 to 18 DIP16, SO16L Few peripheral components p, m 3-13
TDA7053A(AT) 2 × 1(2 × 0.5) 4.5 to 18 DIP16, SO16 DC volume control; 40 dB gain p, m 3-8
TDA8543(T) 2 2.2 to 18 DIP16, SO16 Few peripheral components p, m 3-14
TDA8547(T) 2 × 1 2.2 to 18 DIP16, SO16L Standby per channel p, m 3-15
TDA1016 2 3.6 to 15 DIP16 Record/playback + ALC p, m 3-3
TDA7056/ 3 3 to 18 SIL9MP No peripheral components p, m 3-9
TDA7057Q 2 × 3 SIL13P No peripheral components
TDA1015 4 3.6 to 18 SIL9MP Separate pre/power amplifiers p, m 3-2
TDA7057AQ 2 × 5 4.5 to 18 SIL13P DC volume control; 40 dB gain p, m 3-11
TDA7056A/ 5 4.5 to 18 SIL9MP DC volume control; 36 dB gain p, m 3-10
TDA7056B TDA7056A with 40 dB gain

Note to tables: Output powers are quoted at d

tot

= 10% unless stated otherwise and depend on supply voltage and loudspeaker
impedance. Figures in square brackets refer to performance in BTL configuration. Application areas: c = car radios/power boosters,
m = mains-powered equipment, p = portable radio/audio equipment.

PRODUCT SURVEY IN POWER OUTPUT SEQUENCE

2-6

2

Audio Amplifier ICs

Medium power (6 W to 12 W)

Type No. RMS power (W) Supply (V) Package Remarks Application Page

TDA1010A/ 3.4 to 12 6 to 24 SIL9MP Separate pre/power amplifiers c, m 4-2
TDA1020 + load dump prot., standby, HF limit
TDA1013B 4 to 10 10 to 40 SIL9MP DC volume control m 5-2
TDA2611A 4 to 10 6 to 35 SIL9MP Adjustable input impedance m 5-6
TDA2613/ 6 (d = 0.5%) 15 to 42 SIL9MP Automatic mute; hi-fi m 5-6
TDA2614 TDA2613 with extra mute pin
TDA1011 6.5 3.6 to 24 SIL9MP Separate pre/power amplifiers p, m 3-2
TDA1517(P)/ 2 × 6 6 to 18 SIL9MP, DIP18 20 dB gain c, m 4-5
TDA1519 TDA1517 with 40 dB gain
TDA1521A/ 2 × 6 (d = 0.5%) 15 to 42 SIL9MP Automatic mute; hi-fi m 5-5
TDA2615 TDA1521A with extra mute pin
TDA1521(Q)/ 2 × 12 (d = 0.5%) 15 to 42 SIL9P Automatic mute; hi-fi m 5-5
TDA2616(Q) TDA1521(Q) with extra mute pin

High power (more than 12 W)

Type No. RMS power (W) Supply (V) Package Remarks Application Page

TDA1519A/ 2 × 11[1 × 22] 8.5 to 17.5 SIL9P 2 × 1-end/1 × BTL, 40[46] dB gain c, m 4-6
TDA1519B 2 × 6[1 × 12] 8.5 to 18 SIL9MP
TDA1554Q/ 4 × 11[2 × 22] 8.5 to 18 SIL17P 1-end/BTL, 20[26] dB gain c 4-8
TDA1555Q/ TDA1554Q with distortion detector
TDA1558Q TDA1554Q with 40[46] dB gain
TDA1510AQ/ 2 × 12[1 × 24] 8.5 to 18 SIL13P 1-end/BTL, 26 - 50[32 - 56] dB gain c 4-3
TDA1515BQ TDA1510AQ with LS protection
TDA1516BQ/ 2 × 12[1 × 24] 8.5 to 18 SIL13P 2 × 1-end/1 × BTL, 20[26] dB gain c 4-4
TDA1516CQ/ TDA1516BQ but BTL only
TDA1518BQ TDA1516BQ with 40[46] dB gain
TDA8562Q/ 4 × 12 8.5 to 18 SIL17P 4 × 1-end amplifier, 20 dB gain c 4-14
TDA8565Q TDA8562Q with 40 dB gain
TDA8561Q/ 4 × 12[2 × 24] 8.5 to 18 SIL17P 4 × 1-end/dual BTL, 20[26] dB gain c 4-13
TDA8564Q TDA8561Q with 40[46] dB gain
TDA1552Q/ [2 × 22] 8.5 to 18 SIL13P Dual BTL amplifiers, [26] dB gain c 4-7
TDA1553Q/ TDA1552Q with LS protection
TDA1553CQ/ TDA1553Q with CMOS mode switch
TDA1557Q TDA1553Q with [46] dB gain
TDA1556Q [2 × 22] 8.5 to 18 SIL17P Dual BTL, diff. inputs, [26] dB gain c 4-9
TDA1561Q 2 × 23 6 to 18 DBS13P Automatic switching to high- c, m 4-11

power mode
TDA8566Q 2 × 25 8.5 to 18 DBS17P Diagnostic outputs c 4-15
TDA8567Q/ 4 × 25 8.5 to 18 DBS23P Quad BTL amplifier, 4 Ω load,

[26] dB gain c 4-16
TDA8568Q/ TDA8567Q with [40] dB gain c 4-16
TDA8569Q TDA8567Q driving 2 Ω loads c 4-16
TDA1560Q [40] 8 to 18 SIL17P BTL class-H amplifier, [30] dB gain c, m 4-10
TDA8560Q/ [2 × 40] 8.5 to 18 SIL13P Dual BTL amplifiers. [40] dB gain c 4-12
TDA8563Q/ TDA8560Q with [26] dB gain
TDA8563AQ TDA8563Q with 2.2% THD
TDA1514A 50 (d = 0.1%) 15 to 60 SIL9P Super hi-fi, 20 - 46 dB gain m 5-3/4

Note to tables: Output powers are quoted at d

tot

= 10% unless stated otherwise and depend on supply voltage and loudspeaker
impedance. Figures in square brackets refer to performance in BTL configuration. Application areas: c = car radios/power boosters,
m = mains-powered equipment, p = portable radio/audio equipment.

PRODUCT SURVEY IN POWER OUTPUT SEQUENCE

3-1

Audio Amplifier ICs

3

PORTABLE RADIO/AUDIO EQUIPMENT

PORTABLE RADIO/

AUDIO EQUIPMENT

PORTABLE RADIO/

AUDIO EQUIPMENT

3-2

3

Audio Amplifier ICs

TDA1011/TDA1015

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(W) (V) (

Ω)

with bootstrapping
1 6 4

2.3 9 4

4.2 12 4

*6.5 16 4

without bootstrapping
3 12 4

* TDA1011

Preamplifier plus 6.5 W/4 W
power amplifier

■ Separate preamplifier and power amplifier

■ Thermal protection

■ High input impedance (greater than 100 kΩ)

■ Low current drain (typically 14 mA with a 12 V

supply)

■ Limits RF noise.

■ Minimum number of external components

■ Simple and low cost heatsinking

■ No switch-on/switch-off clicks

■ Output noise diminishes with reducing volume

These ICs are primarily for battery-powered portable recorders
and radios, the TDA1011 offering an output power of 6.5 W
and the TDA1015 and output power of 4 W. However, their
wide supply voltage ranges (TDA1011: 3.6 to 24 V, TDA1015:

3.6 to 18 V) mean they are also suitable for mains powered
equipment. The ICs come in a 9-pin medium-power plastic SIL
package and are pin compatible with each other.

MSB422

V

P

input

1 µF

2

9

7 6 1

2

680

µF

3

330 kΩ

TDA1011/
TDA1015

5

100 nF

1.8 nF

100

nF

4.7 Ω

100 µF

220 nF

10 µF

4

POWER

AMP.

PREAMP.

5.6 kΩ

100 pF

1 µF

TDA1015T

500 mW amplifier

■ Separate preamplifier and power amplifier

■ Thermal protection

■ High input impedance (greater than 100 kΩ)

■ Low current drain (typically 14 mA with a 12 V

supply)

■ Limits RF noise

■ Few peripheral components

This amplifier is for portable and mains-powered equipment. It
delivers up to 500 mW into 32 Ω and has a supply voltage range
from 3.6 V up to 12 V.

It comes in an 8-pin SO package for surface mounting in com­pact circuitry such as mobile radios and telecom equipment.

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(mW) (V) (Ω)

300 6 8
500 9 16
500 12 32

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

V

P

POWER

AMP.

5

220 µF

4

22 nF

4.7 Ω

MSB417

6

0.1 µF

input

1

PREAMP.

2

TDA1015T

8 7 3

0.1 µF

3-3

Audio Amplifier ICs

3

TDA1016

2 W power and record/playback preamplifier

■ Separate record/playback preamplifier and power

amplifier

■ Incorporates ALC (automatic level control) for

recording

■ Voltage stabilization (2.6 V)

■ Short-circuit protection

■ Thermal protection

■ Standby switching facility to minimize current

drain

This amplifier includes an ALC (automatic level control) circuit
and is designed specifically for recorders and radio recorders.
With an operating voltage range from 3.6 V to 15 V, it

’

s ideal
for a wide range of both portable and mains-powered equip­ment. Two of these ICs can be used for stereo. The IC comes in
a 16-pin plastic DIP with internal heat spreader.

POWER OUTPUT AT d

tot

= 10% (with bootstrapping)

power supply load
output voltage impedance
(W) (V) (Ω)

2 9 4

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

10 kΩ

record­input

playback
input

10 kΩ

STAB

P

R

4.7 kΩ
220 pF

stand-by switch

47
µF

4 3

POWER

13 14 15 16

22
µF

160

Ω

AMP.

10 kΩ

560 pF

220 pF

220 nF

2

1

100

100

nF

100

µF

2.7

V

P

nF

470 µF

4 Ω

Ω

MSB421

2.2 MΩ
22 µF

22 µF

56 Ω

180

270

82 kΩ

kΩ

kΩ

3.3 kΩ

8

PREAMP.

9

100 kΩ

22 nF

68 kΩ

470 pF

24 kΩ 5.1 kΩ

10 nF

5 7 6

ALC

11 10 12

1 µF

100 kΩ

22 kΩ

82 kΩ

TDA1016

10 nF

22 µF

1 µF

R
P

2.2
nF

3-4

3

Audio Amplifier ICs

TDA1308T

60 mW stereo headphone amplifier

■ Wide temperature range

■ No switch-on/off clicks

■ Excellent power supply ripple rejection

■ Low current drain (typically 3 mA with a 5 V

supply)

■ Short-circuit resistant

■ 110 dB signal-to-noise ratio

■ 5 V/µs slew rate at unity gain

■ Large output voltage swing

This is a class-AB stereo driver for delivering up to 60 mW into
32 Ω headphones. It is fabricated in a 1 µm CMOS process and
is intended primarily for portable digital audio applications. It
has a supply voltage range from 3 V to 7 V.

It comes an 8-pin SO package for surface mounting.

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(mW) (V) (Ω)

60 5 32

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

V

P

input 1

V

REF

(typ. 2.5 V)

input 2

100 µF

100 nF

3.9 kΩ

1 nF

2
3

5
6

1 nF

3.9 kΩ

1

TDA1308T

7

100 µF

8

4

100 µF

10 kΩ

headphones

10 kΩ

MLB701

3-5

Audio Amplifier ICs

3

TDA7050(T)

150 mW BTL or 2 × 75 mW
low-voltage amplifier

■ Requires no external components in BTL

configuration

■ Operates with battery supplies from 6 V down to

1.6 V

■ Very low quiescent current (typically 3.2 mA with

3 V supply)

■ Closed-loop voltage gain fixed at 26 dB in the

stereo configuration or 32 dB in the BTL configu­ration (floating differential input, 3 V supply and
32 Ω load)

This low-voltage amplifier is for portable mono (BTL) or stereo
apparatus with headphones.

It comes in an 8-pin plastic DIP (TDA7050), or in an 8-pin
small outline (SO) plastic package for surface mounting
(TDA7050T).

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(mW) (V) (Ω)

mono BTL
150 4.5 64
140 3 32
stereo
2 × 75 4.5 32
2 × 35 3 32

TDA7050(T) in single-ended stereo configuration TDA7050(T) in BTL mono configuration

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

left channel

input

right channel

input

22 kΩ

22 kΩ

8

2
1

TDA7050(T)

3
4

100 nF

7

6

47 µF

47 µF

MSB405

V

P

MSA612

100

nF

7

6

input

22 kΩ

8

1
2

TDA7050(T)

4
3

5

V

P

3-6

3

Audio Amplifier ICs

1 W/2 × 1 W BTL amplifiers

■ No external components required

■ Excellent overall stability

■ Output protected against short-circuit

■ No external heatsink required

■ Low power consumption

■ No switch-on or switch-off clicks

■ Supply voltage range of 3 V to 18 V

■ Fixed closed-loop voltage gain of 39 dB (6 V supply,

8 Ω load)

The proprietary circuit design of these amplifiers makes use of
the bridge-tied load (BTL) principle to achieve low-voltage
operation without sacrifice of output power. They are therefore
primarily intended for battery-powered portable recorders and
radios. However, their wide supply voltage range (3 V to 18 V)
also makes them suitable for TV.

The TDA7052 comes in an 8-pin plastic DIP and is pin­compatible with half of the TDA7053 which is in a 16-pin plas­tic DIP.

TDA7052/TDA7053

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(W) (V) (Ω)

TDA7052
1 6 8
2 11 25
TDA7053
2 × 1 6 8
2 × 2 11 25

TDA7053 in BTL stereo configuration

6

MSB420

100

nF

220

µF

P

V

5

TDA7052

8

2

1

3

signal

ground

input

5 kΩ

power ground

TDA7053 in BTL mono configuration

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

V

5

100

nF

220

µF

P

TDA7053

input 1

5 kΩ

ground 1

input 2

5

kΩ

ground 2

2
1

signal

6
7

signal

10

power ground 1 power ground 2

16

13

12

9

14

MSA611

3-7

Audio Amplifier ICs

3

TDA7052A(AT)/TDA7052B(BT)

1 W/0.5 W BTL amplifiers with DC
volume control

■ No external components required

■ Excellent overall stability

■ Output protected against short-circuit to Vp,

ground or across load

■ No external heatsink required

■ Low power consumption

■ Thermal protection

■ Low HF radiation

■ All pins ESD protected

■ No switch-on/switch-off clicks

■ Supply voltage range of 4.5 V to 18 V

■ DC volume control

■ Mute facility

The proprietary circuit design of these amplifiers makes use of
the bridge-tied load (BTL) principle to provide low-voltage
operation without sacrifice of output power. They have fixed
voltage gain of 36 dB for the A versions, and 40 dB for the B
versions. Although they are primarily for battery-powered

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(W) (V) (Ω)

TDA7052A/TDA7052B
1 6 8
2 12 32
TDA7052AT/TDA7052BT

0.5 6 16

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

portable recorders, radios and telephones, their wide supply volt­age range (4.5 V to 18 V) also makes them suitable for multi­media and TV applications.

The amplifiers have built-in DC volume control with a logarith­mic characteristic providing control over a typical range of
80 dB (73 dB B versions). When the DC control voltage drops
below 0.3 V (0.4 V B versions), the amplifier is muted. Except
for pin 4 (DC volume control), the amplifiers are pin-compati­ble with the TDA7052.

They come in an 8-pin plastic DIP (TDA7052A/7052B) or in
an 8-pin small outline (SO) plastic package for surface mount­ing (TDA7052AT/TDA7052BT).

input

0.47 µF

n.c.

DC
volume
control

7

2

4

V

ref

TDA7052A/B

TDA7052AT/BT

STABILIZER TEMPERATURE

PROTECTION

V

P

100 nF 220 µF

1

5

8

6

3

MBC281

ground

3-8

3

Audio Amplifier ICs

TDA7053A/TDA7053AT

2 × 1 W/2 × 0.5 W BTL amplifiers with DC
volume control

■ No external components required

■ Excellent overall stability

■ Output protected against short-circuit to V

p

,

ground or across load

■ No external heatsink required

■ Low power consumption.

■ Thermal protection

■ Low HF radiation

■ All pins ESD protected

■ No switch-on/switch-off clicks

■ Supply voltage range of 4.5 V to 18 V

■ DC volume control

■ Mute facility

These amplifiers are stereo versions of the TDA7052B/
TDA7052BT. They use the same proprietary circuit design
which makes use of the bridge-tied load (BTL) principle to pro­vide low-voltage operation without sacrifice of output power.
They have fixed voltage gain of 40 dB. Although they are pri-

POWER OUTPUT AT d

tot

= 10%

power supply load
output voltage impedance
(W) (V) (Ω)

TDA7053A
2 × 1 6 8
2 × 2 12 32
TDA7053AT
2 × 0.5 6 16

AUDIO AMPLIFIER ICS

PORTABLE RADIO/AUDIO EQUIPMENT

marily for battery-powered portable recorders, radios and tele­phones, their wide supply voltage range (4.5 V to 18 V) also
makes them suitable for multimedia and TV applications.

The amplifiers have built-in DC volume control with a logarith­mic characteristic providing control over a typical range of
73 dB. When the DC control voltage drops below 0.4 V, the
amplifier is muted.

They come in a 16-pin plastic DIP (TDA7053A) or in a 16-pin
small outline (SO) plastic package for surface mounting
(TDA7053AT).

input 1

DC

volume

control 1

input 2

DC

volume

control 2

0.47 µF

0.47 µF

4

2

6

8

TDA7053A

TDA7053AT

V

ref

STABILIZER

7

5

TEMPERATURE

PROTECTION

14 10

220 µF100 nF

16

13

12

9

MSA718 - 2

ground

V

P