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Audio Power
Audio power
amplifiers
Designer’s guide - October 1996
AUDIO AMPLIFIER IC
S
DESIGNER’S GUIDE
1
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
NOTE
Purchase of Philips I
2
C components
conveys a license under the Philips I
2
C
patent to use the components in the I
2
C
system, provided the system conforms to
the I
2
C specifications defined by Philips.
Audio Amplifier ICs
1-1
INTRODUCTION
1
INTEGRATED POWER WITH PHILIPS AUDIO AMPLIFIER ICs
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.
What’s more, advanced internal protection circuitry completely
eliminates danger of damage from thermal runaway, short-
circuits 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.
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.
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.
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 func-
tional power integrated within each package. A functional power
that dramatically reduces the peripheral component count of
finished equipment, leading to:
•
The publication is divided into three application areas: portable
radio/audio, car radio and mains-powered systems. Many prod-
ucts, 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 suit-
ability 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.
lower system development costs
•
smaller, more compact circuitry
•
far fewer production problems
•
significantly lower production costs.
1-2
Audio Amplifier ICs
PRODUCT SURVEY IN APPLICATION SEQUENCE
2
PRODUCT SURVEY
Audio Amplifier ICs
2-1
PRODUCT SURVEY IN APPLICATION SEQUENCE
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
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.
2-2
Audio Amplifier ICs
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