TDA8922B NXP Semiconductors, TDA8922B Datasheet - Page 3

• Manufacturer Part Number: TDA8922B
• Description: The TDA8922B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

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