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ViewSonic Corporation
Confidential - Do Not Copy
VG1921wm-2
22
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
43 GPIO_P11/I2C_MDA
I/O
General Purpose Input/Output; 4mA driving
strength/I2C Master Data
44 GPIO_P10/I2C_MCL
I/O
General Purpose Input/Output; 4mA driving
strength/I2C Master Clock
45 NC
Not Connected
46 NC
Not
connected
47 NC
Not
connected
48 GPIO_P27/PWM1
I/O
General Purpose Input/Output; 4mA driving
strength/Pulse Width Modulation Output; 4mA driving
strength
49
VDDP
I
Digital Output Power
50 GND
Ground
51 VDDC
I Digital
Core
Power
52 MODE[0]
I Chip
Configuration
Input
Summary of Contents for VG1921wm-2
Page 5: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 2 4 Handling and Placing Methods...
Page 6: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 3...
Page 35: ...Disassembly Procedure ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 32...
Page 36: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 33...
Page 37: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 34...
Page 38: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 35...
Page 51: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 48...
Page 61: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 58 11 PCB Layout Diagrams...
Page 62: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 59...