TDA8562 Просмотр технического описания (PDF) - Philips Electronics

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TDA8562

4 x 12 W single-ended car radio power amplifier with dynamic distortion detector and diagnostic interface

Philips Electronics 

Philips Semiconductors

4 x 12 W single-ended car radio power amplifier with

dynamic distortion detector and diagnostic interface

Mode select switch

To avoid switch-on plops, it is advised to keep the amplifier

in the mute mode during > 100 ms (charging of the input

capacitors at pins 1, 3, 15 and 17.

The circuit in Fig.7 slowly ramps up the voltage at the

mode select switch pin when switching on and results in

fast muting when switching off.

handbook, halfpage VP

10 kΩ

10 kΩ

47 µF

mode

select

switch

100 kΩ

MGA708

Fig.7 Mode select switch circuitry.

Product specification

TDA8562Q

10 2

THD

(%)

10

MGA715

1

(1)

(2)

10 1

(3)

10 2

10 2

10 1

1

(1) f = 10 kHz.

(2) f = 1 kHz.

(3) f = 100 Hz.

10

Po (W)

10 2

Fig.8 Total harmonic distortion as a function of output power; VP = 14.4 V, RL = 2 Ω.

July 1994

10

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