19-3
19-3
IC5: TDA8920 IC Specification
Block Diagram
OUT1
VSSP1
VDDP2
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
20
17
16
15
VSSP2
VSSP1
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+
19
24
VSSD
HW
1
VSSA2
12
VSSA1
3
VDDA2
10
VDDA1
23
4
3
1
1
8
1
VDDP2
PROT
STABI
VDDP1
SYMBOL
PIN
DESCRIPTION
V
SSA2
1
negative analog supply voltage for
channel 2
SGND2
2
signal ground channel 2
V
DDA2
3
positive analog supply voltage for
channel 2
IN2
4
negative audio input for channel 2
IN2+
5
positive audio input for channel 2
MODE
6
mode select input
(standby/mute/operating)
OSC
7
oscillator frequency adjustment or
tracking input
IN1+
8
positive audio input for channel 1
IN1
9
negative audio input for channel 1
V
DDA1
10
positive analog supply voltage for
channel 1
SGND1
11
signal ground for channel 1
V
SSA1
12
negative analog supply voltage for
channel 1
PROT
13
time constant capacitor for
protection delay
V
DDP1
14
positive power supply for
channel 1
BOOT1
15
bootstrap capacitor for channel 1
OUT1
16
PWM output from channel 1
V
SSP1
17
negative power supply voltage for
channel 1
STABI
18
decoupling internal stabilizer for
logic supply
HW
19
handle wafer; must be connected
to pin 24
V
SSP2
20
negative power supply voltage for
channel 2
OUT2
21
PWM output from channel 2
BOOT2
22
bootstrap capacitor for channel 2
V
DDP2
23
positive power supply voltage for
channel 2
V
SSD
24
negative digital supply voltage
MBL462
HW
PROT
BOOT1
VDDP1
VSSP1
OUT1
BOOT2
VSSP2
OUT2
VSSD
VDDP2
STABI
MODE
VSSA1
VDDA1
SGND1
IN1+
IN1
VDDA2
IN2+
IN2
VSSA2
SGND2
OSC
TDA8920TH
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
Fig.2 Pin configuration.
(1) Pin 19 should be connected to pin 24 in the application.
Pining
Summary of Contents for HTS3220
Page 21: ...9 2 Fig D3 Fig D4 Fig D5 Cabinet Disassembly Instructions A10 A09 A09 A02 A02 A03 A03 ...
Page 30: ...Main Unit VFD Display Board Layout Diagram 15 3 15 3 ...
Page 35: ...Main Unit AMP Board Layout Diagram 17 4 17 4 ...
Page 44: ...Main Unit Decoder Board Layout Diagram 18 9 18 9 ...
Page 45: ...Subwoofer AMP Power Board Circuit Diagram 19 1 19 1 ...
Page 46: ...Subwoofer AMP Power Board Circuit Diagram 19 2 19 2 IC5 TDA8920CJ ...
Page 48: ...Subwoofer AMP Power Board Layout Diagram 19 4 19 4 ...
Page 49: ...Main Unit Exploded View 20 1 20 1 ...
Page 50: ...Subwoofer Exploded View 20 2 20 2 SUB016 For 98version ...
Page 52: ...Revision List Revision List Version 1 0 Initial Release 21 1 ...