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- 18 –
ViewSonic Corporation
Confidential - Do Not Copy
VX712
4.4 INTRODUCTION OF IC
RTD2523-LF(IC101)
:
integrate ADC, OSD, SCALER, LVDS, convert analog RGB into
digital and room and shrink scaling output to LCD panel.
PIN Function:
Pin Symbol
Description
1 XO
Reference
clock
output
2 XI
Reference
clock
input
3 DPLL_GND
Ground
for
digital
PLL
4
DPLL_VDD
Power for digital PLL(3.3v)
5
APLL_VDD
Power for multi-phase PLL(3.3v)
6 PLL_TEST1
Test
Pin
1/IRQ#
7
PLL_TEST2
Test Pin 2/Power-on-latch for crystal
out Frequency
8
APLL_GND
Ground for multi-phase PLL
9 PWM1/TMDS_TST
PWM1/TMDS_TEST
Pin/Power-on
latch for serial/parallel port
11
、
13
、
19
、
26
TMDS_VDD 3.3V
12
EXT_RES
Impedance Match Reference
14
RX2P
Differential Data Input
15
RX2N
Differential Data Input
17
RX1P
Differential Data Input
18
RX1N
Differential Data Input
20
RX0P
Differential Data Input
21
RX0N
Differential Data Input
23
RXCP
Differential Data Input
24
RXCN
Differential Data Input
51 PWM2/TCON[2]/S[3]
PWM2/TCON[2]/SDIO[3]
55 PWM2/TCON[13]/COUT
PWM2/TCON[13]/Crystal
out
113 PWM2/TCON[12]/COUT
PWM2/TCON[12]/Crystal
out
47
PWM1/DDCSDA/TCON[1]/BBLU[0]
PWM1/DDC serial control I/F data
input/output/TCON[4]
125 PWM1/DDCSDA2/TCON[7]
PWM1/DDC serial control I/F data
input/output/TCON[7]
112
PWM0 / REFCLK
PWM0(In/out)test pin for DCKL/Video
8 even-odd signal
54
SDIO[0]
Serial control I/F data in/Parallel port
data[0]
53
SDIO[1]/TCON[4]/BBLU[0]
Parallel port data[1]/TCON[4]/TTL
BBLU[0]
52
SDIO[2]/TCON[3]/BBLU[1]
Parallel port data[2]/TCON[3]/TTL
BBLU[1]
51
SDIO[3]/PWM2/TCON[2]
Parallel port data[1]/TCON[4]/PWM2
50
SCLK
Serial control I/F clock
Summary of Contents for VX712
Page 20: ... 20 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 45: ... 45 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 48: ... 48 ViewSonic Corporation Confidential Do Not Copy VX712 5 7 Packing For Shipping ...
Page 50: ... 50 ViewSonic Corporation Confidential Do Not Copy VX712 6 Troubleshooting Flow Chart ...
Page 81: ... 81 ViewSonic Corporation Confidential Do Not Copy VX712 12 6 Audio ...
Page 84: ... 84 ViewSonic Corporation Confidential Do Not Copy VX712 13 5 POWER PCB TOP VIEW ...
Page 85: ... 85 ViewSonic Corporation Confidential Do Not Copy VX712 13 6 POWER PCB BUTTON VIEW ...
Page 86: ... 86 ViewSonic Corporation Confidential Do Not Copy VX712 13 7 AUDIO PCB BUTTON VIEW ...