TDA8924 데이터 시트보기 (PDF) - Philips Electronics

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TDA8924

2×120 W class-D power amplifier

Philips Electronics 

Philips Semiconductors

2 × 120 W class-D power amplifier

6 BLOCK DIAGRAM

Objective specification

TDA8924

handbook, full pagewidth VDDA2 VDDA1

STABI PROT

VDDP2 VDDP1

IN1−

IN1+

SGND1

OSC

MODE

SGND2

IN2+

IN2−

3

10

18 13

23

14

15

9

INPUT

8 STAGE

mute

11

7

PWM

MODULATOR

STABI

RELEASE1

SWITCH1 CONTROL

AND

ENABLE1 HANDSHAKE

DRIVER

HIGH

DRIVER

LOW

16

VSSP1

6

OSCILLATOR

MODE

MANAGER

TEMPERATURE SENSOR

CURRENT PROTECTION

TDA8924

VDDP2

22

2

mute

5

INPUT

4 STAGE

ENABLE2

DRIVER

CONTROL

SWITCH2

AND

HIGH

21

PWM

MODULATOR

HANDSHAKE

RELEASE2

DRIVER

LOW

BOOT1

OUT1

BOOT2

OUT2

1

12

VSSA2 VSSA1

24

VSSD

19

HW

17

20

VSSP1 VSSP2

MDB569

Pin 19 should be connected to pin 24 in the application.

Fig.1 Block diagram.

2003 Jul 28

4

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