TDA8566Q/N1 Просмотр технического описания (PDF) - Philips Electronics

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TDA8566Q/N1

2 x 40 W/2Ωstereo BTL car radio power amplifier with differential inputs and diagnostic outputs

Philips Electronics 

Philips Semiconductors

2 x 40 W/2 Ω stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TEST AND APPLICATION INFORMATION

Product specification

TDA8566Q

handbook, full pagewidth

Vin1

Vin2

+

Vmode _

14

+1

Rs/2 220 nF

60

kΩ

Rs/2

60

220 nF

_

kΩ

2

Vref +

3−

Rs/2

220 nF

+ 16

60

kΩ

Rs/2

60

220 nF

kΩ

_ 17

100

2200

nF µF/16V

+ VP =

_ 14.4 V

5

+

−

13

6+

TDA8566Q

RL1

−

8_

VP VP

+

CLIP

4

DETECTOR

10 10

kΩ kΩ

CLIP

DIAGNOSTIC 15

INTERFACE

+

10 +

−

RL2

−

+

7

12 _

11

DIAG

MGD104

Fig.6 Stereo BTL test diagram.

Application notes

DIAGNOSTIC OUTPUT

Special care must be taken in the PCB layout to separate

pin 4 from pins 1, 2, 16 and 17 to minimize the crosstalk

between the CLIP output and the inputs.

MODE SELECT SWITCH

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

amplifier in the mute mode during ≥150 ms (charging of

the input capacitors at pins 1, 2, 16 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.

+Vsupply

handbook, halfpage

S

10 kΩ

47 µF

100 Ω

mode

select

switch

100 kΩ

MGD102

Fig.7 Mode select switch circuit.

2001 Feb 21

9

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