TDA8922B
Philips Semiconductors
2 × 50 W class-D power amplifier
6. Block diagram
V
V
V
V
DDP2
23 (16)
DDP1
DDA2
DDA1
10 (4)
STABI PROT
3 (20)
18 (12)
13 (7)
14 (8)
15 (9)
BOOT1
OUT1
RELEASE1
SWITCH1
ENABLE1
9 (3)
8 (2)
IN1M
IN1P
DRIVER
HIGH
PWM
MODULATOR
INPUT
STAGE
CONTROL
AND
HANDSHAKE
16 (10)
DRIVER
LOW
mute
11 (5)
7 (1)
SGND1
OSC
STABI
V
V
SSP1
TDA8922BTH
(TDA8922BJ)
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
OSCILLATOR
MANAGER
6 (23)
DDP2
22 (15)
MODE
MODE
mute
BOOT2
OUT2
2 (19)
SGND2
ENABLE2
DRIVER
HIGH
CONTROL
AND
HANDSHAKE
21 (14)
5 (22)
4 (21)
SWITCH2
IN2P
IN2M
INPUT
STAGE
PWM
MODULATOR
DRIVER
LOW
RELEASE2
1 (18)
12 (6)
SSA1
24 (17)
19 (-)
n.c.
17 (11)
20 (13)
coa022
V
V
V
V
V
SSP2
SSA2
SSD
SSP1
(1) Pin numbers in parenthesis refer to the TDA8922BJ.
Fig 1. Block diagram.
9397 750 13357
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 1 October 2004
3 of 32
NXP [ NXP ]
