NV-U74
46
MAIN BOARD IC3501 WM9705SEFL/RV (AUDIO CODEC, TOUCH SCREEN CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DVDD1
-
Power supply terminal (+3.2V) (digital system)
2
XTLIN
I
System clock input terminal (24.576 MHz)
3
XTLOUT
O
System clock output terminal (24.576 MHz)
4
DGND1
-
Ground terminal (digital system)
5
SDATAOUT
I
Serial data input from the CPU
6
BITCLK
O
Bit clock signal output to the CPU
7
DGND2
-
Ground terminal (digital system)
8
SDATAIN
O
Serial data output to the CPU
9
DVDD2
-
Power supply terminal (+3.2V) (digital system)
10
SYNC
I
Sync signal input from the CPU
11
RESETB
I
Reset signal input from the CPU “L”: reset
12
PCBEEP
I
PCBEEP signal input terminal Not used
13
PHONE
I
PHONE signal input terminal Not used
14
X+/AUXL
I
Coordinate value in direction of X+ input from the touch panel switch
15
X-/AUXR
I
Coordinate value in direction of X- input from the touch panel switch
16
Y+/VIDL
I
Coordinate value in direction of Y+ input from the touch panel switch
17
Y-/VIDR
I
Coordinate value in direction of Y- input from the touch panel switch
18
CDL
I
CD signal (L-ch) input terminal Not used
19
CDGND
-
Ground terminal (for CD signal input)
20
CDR
I
CD signal (R-ch) input terminal Not used
21, 22
MIC1, MIC2
I
MIC signal input terminal Not used
23
LINEINL
I
Audio signal (L-ch) input terminal Not used
24
LINEINR
I
Audio signal (R-ch) input terminal Not used
25
AVDD1
-
Power supply terminal (+3.2V) (analog system)
26
AGND1
-
Ground terminal (analog system)
27
VREF
O
Reference voltage (+3.2V) output terminal
28
VREFOUT
O
Reference voltage (+3.2V) output terminal for audio signal
29
PDRES
I
External resistor connection terminal
30
AUXADC
I
Bright detection signal input terminal Not used
31
BMON
I
Power supply monitor terminal
32
CAP2
I
External capacitor connection terminal
33
CX3D1
O
3D difference signal output terminal
34
CX3D2
I
3D difference signal input terminal
35
LINEOUTL
O
Audio signal (L-ch) output terminal Not used
36
LINEOUTR
O
Audio signal (R-ch) output terminal Not used
37
MONOOUT
O
Monaural signal output to the power ampli
fi
er
38
AVDD2
-
Power supply terminal (+3.2V) (analog system)
39
HPOUTL
O
Audio signal (L-ch) output terminal Not used
40
HPGND
O
Ground terminal (for audio signal output)
41
HPOUTR
O
Audio signal (R-ch) output terminal Not used
42
AGND2
-
Ground terminal (analog system)
43
MASK/LRC
I/O
Mask signal input terminal or L/R sampling signal output terminal Not used
44
SPEN/I2C
I/O
S/PDIF hardware enable signal input terminal or I2C data output terminal Not used
45
CID0
I
Primary/secondary ID selection signal input terminal
46
PENDET
O
Interrupt request signal output to the CPU
47
EAPD/BUSY
O
External ampli
fi
er power down signal or busy signal output terminal Not used
48
SPDIF
O
S/PDIF signal output terminal Not used
49
PAD
-
Connected to the ground
Summary of Contents for NV-U74
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