TDA8563A 데이터 시트보기 (PDF) - Philips Electronics

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TDA8563A

2 × 40 W/2 Ω stereo BTL car radio power amplifier with diagnostic facility

Philips Electronics 

Philips Semiconductors

2 × 40 W/2 Ω stereo BTL car radio power

amplifier with diagnostic facility

Product specification

TDA8563AQ

handbook, halfpa+geVP

10 kΩ

MODE

BZX79C/3.9V

47 µF

MGD959

Diagnostic output

Special care must be taken in the printed-circuit board

layout to separate pin 12 from pin 1 and pin 13, to

minimize the crosstalk between the diagnostic output and

the inputs.

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 pin 1 and pin 13).

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.

Fig.7 Mode select switch circuitry.

handbook1,0fu2ll pagewidth

THD

(%)

10

MLB667

1

(1)

10 1

(2)

(3)

10 2

10 2

10 1

1

10

Po (W)

10 2

(1) f = 10 kHz.

(2) f = 1 Hz.

(3) f = 100 Hz.

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

1997 Feb 20

11

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