TDA8924 Datasheet, PDF (4/35 Pages) NXP Semiconductors – 2 x 120 W class-D power amplifier

Philips Semiconductors
2 × 120 W class-D power amplifier
6 BLOCK DIAGRAM
Objective specification
TDA8924
handbook, full pagewidth _{VDDA2 VDDA1}
STABI PROT
VDDP2 VDDP1
IN1−
IN1+
SGND1
OSC
MODE
SGND2
IN2+
IN2−
3
10
18 13
23
14
15
9
INPUT
8 STAGE
mute
11
7
PWM
MODULATOR
STABI
RELEASE1
SWITCH1 _CONTROL
AND
ENABLE1 _HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
16
VSSP1
6
OSCILLATOR
MODE
MANAGER
TEMPERATURE SENSOR
CURRENT PROTECTION
TDA8924
VDDP2
22
2
mute
5
INPUT
4 STAGE
ENABLE2
DRIVER
CONTROL
SWITCH2
AND
HIGH
21
PWM
MODULATOR
HANDSHAKE
RELEASE2
DRIVER
LOW
BOOT1
OUT1
BOOT2
OUT2
1
12
VSSA2 VSSA1
24
VSSD
19
HW
17
20
VSSP1 VSSP2
MDB569
Pin 19 should be connected to pin 24 in the application.
Fig.1 Block diagram.
2003 Jul 28
4