Shivaki STV-24LEDGR7, Service Manual

Page: 45 / 175

D-class power amplifier
R2A15120FA
PRELI
MINAR
Y
some
param
etric lim
its are
subjec
t to ch
ange.
CONFIDENTIAL
5. Terminal Descriptions
CH1-A block: Power output terminal O OUTA1 47
CH1-B block: Power supply for power output stage(VD is supplied)
－
VDB1 39
CH1-B block: Power output terminal O OUTB1 37
CH2-B block: Ground terminal for power output stage
－
VSB2 25
CH2-B block: Power output terminal O OUTB2 23
CH2-A block: Power supply for power output stage(VD is supplied)
－
VDA2 15
The pin for test. Please do not connect anything.
Please set this terminal OPEN status.
－
TEST2 35
CH1-B block: Power supply for power output stage(VD is supplied)
－
VDB1 40
CH1-B block: Power output terminal O OUTB1 38
－
(N.C.) 41
CH1-B block: Ground terminal for power output stage
－
VSB1 36
Terminal for adjusting carrier frequency by external resistor.
When this IC is connected to the AVCC, it is switched to the slave mode. I ROSC 34
Terminal for setting output clipping voltage by external resistor. I RLMT 33
power supply terminal
－
VD 32
Pre circuit:Filter terminal for built-in 10V regulator. O DVDD 31
Terminal for connecting to terminal ROSC or terminal RLMT.
－
RREF 30
CH2-B block: Power supply for power output stage(VD is supplied)
－
VDB2 22
Gain setting terminal L:GND H:Open (Built-in Pull-up Resistor) I GAIN2 27
The pin for test. Please do not connect anything.
Please set this terminal OPEN status.
－
TEST1 26
CH2-B block: Power output terminal O OUTB2 24
CH2-B block: Power supply for power output stage(VD is supplied)
－
VDB2 21
－
(N.C.) 20
CH2-B block: Capacitor connection terminal for bootstrap on "H" side
－
HBB2 19
CH2-A block: Capacitor connection terminal for bootstrap on "H" side
－
HBA2 18
－
(N.C.) 17
CH2-A block: Power supply for power output stage(VD is supplied)
－
VDA2 16
CH2-A block: Power output terminal O OUTA2 14
CH2-A block: Power output terminal O OUTA2 13
CH2-A block: Ground terminal for power output stage
－
VSA2 12
28
VDA1 45
CH1-B block: Analog signal input terminal I INB1 5
CH1-A block: Analog signal input terminal I INA1 4
Mute control terminal. “L”: Mute status. I MUTEL 3
Stand-by control terminal. “L”: Stand-by status.
This terminal has pull-down 50 k
Ω
(typ).
I STBYL 2
Ground terminal
－
GND 6
Protection mode monitor.
“L”:Protection status. (Open drain output)
O PROT 11
CH1-A block: Power output terminal
O OUTA1 48
CH1-A block: Capacitor connection terminal for bootstrap on "H" side
－
HBA1 43
CH2-A block: Analog signal input terminal I INA2 9
CH1-A block: Power supply for power output stage(VD is supplied)
－
CH1-A block: Power supply for power output stage(VD is supplied)
－
VDA1 46
－
(N.C.) 44
CH1-B block: Capacitor connection terminal for bootstrap on "H" side
The carrier clock(triangle wave) is output at Master mode.
Please input it(triangle wave) at slave mode.
Gain setting terminal L:GND H:Open (Built-in Pull-up Resistor)
Reference power supply filter terminal in analog part
CH2-B block: Analog signal input terminal
Filter terminal for built-in 5V analog regulator
CH1-A block: GND terminal for power output stage
Description
－
I/O
I
－
I
O
－
I/O
HBB1
CLK
GAIN1
VREF
INB2
AVCC
VSA1
NAME
42
29
10
8
7
1
No.
Page 29 of 152