TDA8922B View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8922B

2×50 W class-D power amplifier

Philips Electronics 

Philips Semiconductors

6. Block diagram

TDA8922B

2 × 50 W class-D power amplifier

VDDA2 VDDA1

STABI PROT

VDDP2

VDDP1

IN1M

IN1P

SGND1

OSC

MODE

SGND2

IN2 P

IN2 M

3 (20) 10 (4)

18 (12) 13 (7)

23 (16)

14 (8)

15 (9)

9 (3)

8 (2)

INPUT

STAGE

PWM

MODULATOR

11 (5) mute

7 (1)

STABI

6 (23)

OSCILLATOR

MODE

MANAGER

2 (19)

mute

5 (22)

4 (21)

INPUT

STAGE

PWM

MODULATOR

RELEASE1

SWITCH1 CONTROL

AND

ENABLE1 HANDSHAKE

DRIVER

HIGH

DRIVER

LOW

TEMPERATURE SENSOR

CURRENT PROTECTION

VOLTAGE PROTECTION

TDA8922BTH

(TDA8922BJ)

ENABLE2

SWITCH2

RELEASE2

CONTROL

AND

HANDSHAKE

DRIVER

HIGH

DRIVER

LOW

16 (10)

VSSP1

VDDP2

22 (15)

21 (14)

BOOT1

OUT1

BOOT2

OUT2

1 (18) 12 (6)

VSSA2 VSSA1

24 (17) 19 (-)

VSSD

n.c.

17 (11) 20 (13)

VSSP1

VSSP2

coa022

(1) Pin numbers in parenthesis refer to the TDA8922BJ.

Fig 1. Block diagram.

9397 750 13357

Preliminary data sheet

Rev. 01 — 1 October 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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