Introduction Of Ic; Pin Function - ViewSonic VX2262WM - 22" LCD Monitor Service Manual

4.4 INTRODUCTION OF IC

TSUMO58CWHL-LF(U401): integrate ADC, OSD, SCALER, MCU, LVDS, convert
analog RGB into digital and room and shrink scaling output to LCD panel.

PIN Function:

Pin
41
42
43
44
34
35
5
6
102
108
103
32
33
31
30
7
37
128
127
8,12,20
21
40,54,58-60,65,66,71,87,107
112,114
53,74,104,126
1,11,17,29,52,62,63,68,69,72,
88,101,105,106,113
ViewSonic Corporation
Symbol
SDO
CSZ
SCK
SDI
DDCA_SDA/RS232_TX DDC Data for analog interface/
DDCA_SCL/RS232_RX DDC Clock for analog interface/
DDCD_SDA
DDCD_SCL
BYPASS
RST
VCTRL
HSYNCO
VSYNCO
REFP
REFM
REXT
MODE
XIN
XOUT
AVDD＿33
AVDD＿18
VDDP
VDDC
GND
- 19 –
Confidential - Do Not Cop
Description
SPI flash serial data output
SPI flash chip select
SPI flash serial select
SPI flash serial data input
UART Ttransmitter /
General Purpose
4mA driving strength
UART Receiver /
General Purpose
4mA driving strength
DDC Data and HDCP Slave Serial
Port Data for DVI/HDMI Interface;
4mA driving strength
DDC Clock and HDCP Slave
Serial Port Data for DVI/HDMI
Interface
For External Bypass Capacitor
Chip reset; High reset
Regulator control
Analog HSYNC input
Analog VSYNC input
Internal ADC top de-coupling pin
Internal ADC bottom de-coupling
pin
External resistor 390 ohm to
AVDD_33
Chip Configuration Input; 10K
ohm pull-low for normal operation
Xin; Crystal Oscillator Input
Xout; Crystal Oscillator Output
ADC Analog Power 3.3V
ADC Analog Power 1.8V
Digital Output Power 3.3V
Digital Core Power 1.8V
Ground
Input/Output;
Input/Output;
VX2262wm/wmp