TDA8922B Datasheet, PDF (3/32 Pages) NXP Semiconductors – 2 X 50 W class-D power amplifier

Philips Semiconductors
6. Block diagram
TDA8922B
2 × 50 W class-D power amplifier
V_DDA2 V_DDA1
STABI PROT
V_DDP2
V_DDP1
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)
V_SSP1
V_DDP2
22 (15)
21 (14)
BOOT1
OUT1
BOOT2
OUT2
1 (18) 12 (6)
V_SSA2 V_SSA1
24 (17) 19 (-)
V_SSD
n.c.
17 (11) 20 (13)
V_SSP1
V_SSP2
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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