ViewSonic VA703b-4 Service Manual page 22

ADC: 15 pins
Name
ADC_GND
ADC_REFIO
ADC_VDD
BLUE+
BLUE-
ADC_GND
SOG/ADC_TEST
GREEN+
GREEN-
ADCB_VDD
RED+
RED-
ADC_GND
ADC_GND
ADC_VDD
AHS
AVS
PLL: 8 pins
Name
XO
XI
DPLL_GND
DPLL_VDD
APLL_VDD
PLL_TEST1
PLL_TEST2
APLL_GND
Control Interface: 7 pins
Name
SDIO [0]
SDIO [1] / TCON [4] /
BBLU [0]
SDIO [2] / TCON [3] /
BBLU [1]
SDIO [3] / PWM2 /
TCON [2]
SCLK
SCSB
RESET
ViewSonic Corporation
Pin No
I/O
AG 27 ADC ground
AP 28 ADC band-gap voltage de-coupling
AP 29 Analog power
AI 30 Analog input from BLUE channel
AI 31 Analog input ground from BLUE channel
AG 32 ADC ground
AIO 33 SOG in/ADC test pin
AI 34 Analog input from GREEN channel
AI 35 Analog input ground from GREEN
channel
AP 36 Analog power
AI 37 Analog input from RED channel
AI 38 Analog input ground from RED channel
AG 39 Analog ground
AG 40 Analog ground
AP 41 Analog power
AI 42 Analog HS input
AI 43 Analog VS input
Pin No
I/O
AI 1 Reference clock output
AO 2 Reference clock input
AG 3 Ground for digital PLL
AP 4 Power for digital PLL
AP 5 Power for multi-phase PLL
AIO 6 Test Pin 1 / IRQ#
AIO 7 Test Pin 2/Power-on-latch for crystal out
Frequency
AG 8 Ground for multi-phase PLL
I/O Pin No Description
IO 54 Serial control I/F data in / Parallel port
data [0]
IO 53 Parallel port data [1] / TCON [4] / TTL
BBLU [0]
IO 52 Parallel port data [2] / TCON [3] / TTL
BBLU [1]
IO 51 Parallel port data [1] / TCON [4] / PWM2
I 50 Serial control I/F clock
I 111 Serial control I/F chip select
O 56 RESET output for Micron
Description
Description
19
Confidential - Do Not Copy
Note
1.20V
(3.3V)
(3.3V)
(3.3V)
(10), (4), (5)
(2), (4), (5)
Note
(3.3V)
(3.3V)
Note
(2), (3), / 2mA
(1), (2), (3), / 2mA
(1), (2), (3), / 2mA
(1), (2), (3), / 2mA
(2), (3), (5)
(2), (3), (5)
(2), (5), (6) / 2mA
VA703b-4_VA703m-4