TDA8922 PHILIPS [NXP Semiconductors], TDA8922 Datasheet - Page 4

• Manufacturer Part Number: TDA8922
• Description: 2 x 25 W class-D power amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
6
2003 Mar 20
handbook, full pagewidth
2
(1) Pin HW (TDA8922TH only) should be connected to pin V
Pin numbers in parenthesis refer to the TDA8922J.
BLOCK DIAGRAM
SGND1
SGND2
MODE
IN2
IN2
IN1
IN1
OSC
25 W class-D power amplifier
9 (3)
8 (2)
11 (5)
7 (1)
6 (23)
2 (19)
5 (22)
4 (21)
V DDA2
V SSA2
MODE
STAGE
STAGE
3 (20)
1 (18)
INPUT
INPUT
mute
mute
V DDA1
V SSA1
OSCILLATOR
10 (4)
12 (6)
MODULATOR
MODULATOR
MANAGER
PWM
PWM
STABI
Fig.1 Block diagram.
SSD
18 (12)
STABI
V SSD
in the application.
24 (17)
TEMPERATURE SENSOR
CURRENT PROTECTION
PROT
4
13 (7)
RELEASE1
RELEASE2
SWITCH1
ENABLE1
ENABLE2
SWITCH2
HW
(1)
19 (-)
HANDSHAKE
HANDSHAKE
CONTROL
CONTROL
AND
AND
TDA8922TH
(TDA8922J)
DRIVER
DRIVER
DRIVER
DRIVER
HIGH
HIGH
V DDP2
LOW
LOW
V SSP1
23 (16)
17 (11)
Objective specification
V DDP1
V DDP2
V SSP1
V SSP2
14 (8)
20 (13)
16 (10)
22 (15)
21 (14)
15 (9)
TDA8922
MGU994
OUT1
BOOT1
BOOT2
OUT2