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Part Name
Description
TDA8922J View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA8922J
2×25 W class-D power amplifier
Philips Electronics
TDA8922J Datasheet PDF : 36 Pages
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Philips Semiconductors
2
×
25 W class-D power ampliï¬er
6 BLOCK DIAGRAM
Objective speciï¬cation
TDA8922
handbook, full pagewidth
VDDA2 VDDA1
STABI PROT
VDDP2
VDDP1
IN1
−
IN1
+
SGND1
OSC
MODE
SGND2
IN2
+
IN2
−
3 (20) 10 (4)
18 (12) 13 (7)
23 (16)
14 (8)
15 (9)
9 (3)
8 (2)
INPUT
STAGE
11 (5)
mute
7 (1)
6 (23)
OSCILLATOR
MODE
PWM
MODULATOR
STABI
MANAGER
RELEASE1
SWITCH1
CONTROL
AND
ENABLE1
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
TDA8922TH
(TDA8922J)
2 (19)
mute
5 (22)
4 (21)
INPUT
STAGE
PWM
MODULATOR
ENABLE2
SWITCH2
RELEASE2
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
16 (10)
VSSP1
VDDP2
22 (15)
21 (14)
BOOT1
OUT1
BOOT2
OUT2
1 (18) 12 (6)
VSSA2 VSSA1
24 (17) 19 (-)
VSSD
HW
(1)
17 (11) 20 (13)
VSSP1 VSSP2
MGU994
(1) Pin HW (TDA8922TH only) should be connected to pin V
SSD
in the application.
Pin numbers in parenthesis refer to the TDA8922J.
Fig.1 Block diagram.
2003 Mar 20
4
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