Control Interface: 7 Pins; Display & Tcon/Video-8 Port: 54 Pins - ViewSonic VA903b-3 VS11372 Service Manual

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
Display & TCON/VIDEO-8 Port: 54 pins
■:LVDS+RSDS+TTLO ■:RSDS+TTLO ■:RSDS+TTLIO■:TTLO ■:TTLIO
Pin 6-bits
NO. Dual RSDS
51 S[3] /
TCON[2] /
PWM2
52 S[2] /
TCON[3]
ViewSonic Corporation
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
6 bits 8/6 bits
Single RSDS Dual/Single
LVDS
S[3] / S[3] /
TCON[2] / TCON[2] /
PWM2 PWM2
S[2] / S[2] /
TCON[3] TCON[3]
Description
8 bits
Dual/Single
Dual/Single
TTL
S[3] / S[3] /
TCON[2] / TCON[2] /
PWM2 PWM2
S[2] S[2] /
/BBLU[1] / TCON[3]
TCON[3]
Confidential - Do Not Copy
17
(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
6 bits Note
TTL
(1), (2), (3)/
2mA
(1), (2), (3)/
2mA
VA903b-1_ VA903m-1