TDA8922TH datasheet(4/36 Pages) PHILIPS

4 / 36 page

2003 Mar 20

Philips Semiconductors

Objective speciﬁcation

× 25 W class-D power ampliﬁer

TDA8922

BLOCK DIAGRAM

handbook, full pagewidth

MGU994

OUT1

VSSP1

VDDP2

DRIVER

HIGH

OUT2

BOOT2

TDA8922TH

(TDA8922J)

BOOT1

DRIVER

LOW

RELEASE1

SWITCH1

ENABLE1

CONTROL

AND

HANDSHAKE

PWM

MODULATOR

MANAGER

OSCILLATOR

TEMPERATURE SENSOR

CURRENT PROTECTION

STABI

MODE

INPUT

STAGE

mute

9 (3)

8 (2)

IN1

−

IN1

22 (15)

21 (14)

20 (13)

17 (11)

16 (10)

15 (9)

VSSP2

VSSP1

DRIVER

HIGH

DRIVER

LOW

RELEASE2

SWITCH2

ENABLE2

CONTROL

AND

HANDSHAKE

PWM

MODULATOR

11 (5)

SGND1

7 (1)

OSC

2 (19)

SGND2

6 (23)

MODE

INPUT

STAGE

mute

5 (22)

4 (21)

IN2

−

IN2

19 (-)

24 (17)

VSSD

HW (1)

1 (18)

VSSA2

12 (6)

VSSA1

3 (20)

VDDA2

10 (4)

VDDA1

23 (16)

13 (7)

18 (12)

14 (8)

VDDP2

PROT

STABI

VDDP1

Fig.1 Block diagram.

(1) Pin HW (TDA8922TH only) should be connected to pin VSSD in the application.

Pin numbers in parenthesis refer to the TDA8922J.

TDA8922TH Datasheet(PDF) 4 Page - NXP Semiconductors

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