Read Sharp HT-DV40H (serv.man4) Service Manual online
HT-DV40H
8 – 37
IC10 VHINJU26220FN : DOLBY VIRTUAL SPEAKER / HEADPHONE DECODER ( NJU26220FN ) ( 3/3 )
PIN DESCRIPTION
Pin No.
Symbol
Input/Output
Function
1,11,20,32,40
VDDIO
-
I/O Power Supply +3.3V
2
BCKI
Input
Bit Clock Input
3,10,19,31,41
VSSIO
-
I/O GND
4,15,30,42
VSS
-
Core GND
5,16,29,43
VDD
-
Core Power Supply +1.8V
6
TEST
Input
for test (connected to VSSIO through 3.3k
Ω resistance.)
7
MUTEb*
Input
Master Volume level, After reset DSP (“1” : 0dB, “0” : Mute)
8
WDC*
OD
Clock for Watch Dog Timer (Open Drain Output)
9
PROC*
Input
After Reset DSP. (“1” : Normal, “0” : Wait from Command)
12
SEL
Input
Select I
2
C or Serial Bus (“1” : Serial, “0” : I
2
C-Bus)
13
VDDPLL
-
PLL Analog Power Supply +1.8V
14
VSSPLL
-
PLL Analog GND
17
CLKOUT
Output
OSC Output
18
CLK
Input
X’tal CLock Input (12.288MHz)
21
RESETb
Input
Reset (RESETb=’0’ : DSP Reset)
22
TEST
Input
for TEST (Connect to VDDIO)
23,24
TEST
Input
for TEST (Connect to VSSIO)
25
AD1/SDIN
Input
I
2
C Address / Serial Input
26
AD2/SSb
Input
I
2
C Address / Serial Enable
27
SCI/SCK
Input
I
2
C Clock / Serial Clock
28
SDA/SDOUT
Input/Output
I
2
C I/O (Open Drain output) / Serial Output (CMOS output)
I
2
C Bus mode : SDA pin requires a pull-up resistance
4-wire Serial mode : SDOUT does not require a pull-up resistance.
33
MCK
Output
Master Clock Output (CLK Terminal=27 pin Buffer Out)
34
BCKO
Output
Bit Clock Output
35
LRO
Output
LR Clock Output
36
SDO3
Output
Audio Data Output 3 (SL/SR)
37
SDO2
Output
Audio Data Output 2 (C/SW)
38
SDO1
Output
Audio Data Output 1 (L/R)
39
SDO0
Output
Audio Data Output 0 (Monitor output)
44
SDI3
Input
Audio Data Input 3
45
SDI2
Input
Audio Data Input 2
46
SDI1
Input
Audio Data Input 1
47
SDI0
Input
Audio Data Input 0
48
LRI
Input
LR Clock Input
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