Sharp HT-CN150DVW - IC501;IC502;IC503 2 X50 W Class-D Power Amplifier (TDA8921)

HT-CN150DVW
84
IC501/IC502/IC503 2X50 W class-D power amplifier (TDA8921)
Block Diagram:
handbook, full pagewidth
OUT1
V
SSP1
V
DDP2
DRIVER
HIGH
MBL461
OUT2 BOOT2
TDA8920TH
BOOT1
DRIVER
LOW
RELEASE1
SWITCH1
ENABLE1
CONTROL
AND
HANDSHAKE
PWM
MODULATOR
MANAGER
OSCILLATOR
TEMPERATURE SENSOR
CURRENT PROTECTION
STABI
MODE
INPUT
STAGE
mute
9 8
IN1- IN1+
22 21
2017
16 15
V
SSP2
V
SSP1
DRIVER
HIGH
DRIVER
LOW
RELEASE2
SWITCH2
ENABLE2
CONTROL
AND
HANDSHAKE
PWM
MODULATOR
11
SGND1
7
OSC
2
SGND2
6
MODE
INPUT
STAGE
mute
5 4
IN2- IN2+
1924
V
SSD
HW
1
V
SSA2
12
V
SSA1
3
V
DDA2
10
V
DDA1
231318 14
V
DDP2
PROTSTABI
V
DDP1
TDA8921TH
FIGURE 1 BLOCK DIAGRAM