ViewSonic VS11444, Service Manual

Page: 33 / 75

ViewSonic Corporation
Confidential - Do Not Copy
30
5 GND Ground
6 NC Not connected
7 NC Not connected
8 AVDD_DC I ADC Power
9 NC Not connected
10 NC Not connected
11 GND Ground
12 NC Not connected
13 NC Not connected
14 AVDD_DC I ADC Power
15 REXT External resistor 390 ohm to AVDD_ADC
16 AVDD_PLL I PLL Power
17 BIN0M I Reference ground for analog blue input
18 BIN0P I Analog blue input
19 GIN0M I Reference ground for analog green input
20 GIN0P I Analog green input
21 SOGIN0 I Sync-on-green input
22 RIN0M I Reference ground for analog red input
23 RIN0P I Analog red input
24 AVDD_ADC I ADC Power
25 REFM Internal ADC bottom de-coupling pin
26 REFP Internal ADC top de-coupling pin
27 HSYNC0 I Analog HSYNC input
28 VSYNC0 I Analog VSYNC input
29 GND Ground
30 DDCA_SDA/RS232_TX I/O
DDC Data for Analog Interface; 4mA driving strength/UART
Transmitter/GPIO
31 DDCA_SCL/RS232_RX I/O DDC Clock for Analog Interface/UART Receiver/GPIO
32 VDDP I Digital Output Power
33 GND Ground
34 VDDC I Digital Core Power
35 GPIO_P15/PWM0 I/O
General Purpose Input/Output; 4mA driving strength/Pulse Width
Modulation Output; 4mA driving strength
36 NC Not Connected
37 SDO I SPI Flash Serial Data Output
38 SCZ O SPI Flash Chip Select
39 SCK O SPI Flash Serial Clock
40 SDI O SPI Flash Serial Data Input
41 NC Not Connected
42 NC Not Connected
V
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