TDA8924 Datasheet, PDF (30/35 Pages) NXP Semiconductors – 2 x 120 W class-D power amplifier

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VDDA
VDDA2 VDDA1
3
10
STABI PROT
18 13
RFB
VDDA
VDDP
VDDP2 VDDP1
23
14
15 BOOT1
+25 V
Vin1
IN1− 9
IN1+ 8
INPUT
STAGE
SGND
SGND1 11
COSC
mute
PWM
MODULATOR
STABI
RELEASE1
SWITCH1 _CONTROL
AND
ENABLE1 _HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
VSSA
Vmode
OSC 7
ROSC
MODE 6 _MODE
OSCILLATOR
MANAGER
TEMPERATURE SENSOR
CURRENT PROTECTION
TDA8924
16
OUT1
VSSP1
VDDP2
22 BOOT2
SGND
SGND
Vin2
SGND2 2
IN2+ 5
IN2− 4
mute
INPUT
STAGE
PWM
MODULATOR
ENABLE2
CONTROL
SWITCH2
AND
HANDSHAKE
RELEASE2
DRIVER
HIGH
DRIVER
LOW
0V
21
OUT2
1
12
VSSA2 VSSA1
VSSA
RFB
24
19
VSSD HW
VSSA
17
20
VSSP1 VSSP2
VSSA
−25 V
VSSP _MDB571
Fig.38 Typical application schematic of TDA8924.