ViewSonic N1900w-1E, Руководство по обслуживанию

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4. Circuit Description
I401 TSUM66AVHJ-1
GENERAL DESCRIPTION
The TSUM66AVHJ-1 is total solution graphics processing IC for LCD monitors with panel resolutions
up to WXGA+/SXGA+. It is configured with a high-speed integrated triple-ADC/PLL, an integrated
DVI receiver, a high quality display processing engine, and an integrated output display interface that
can support LVDS panel interface format. To further reduce system costs, the TSUM66AVHJ-1 also
integrates intelligent power management control capability for green-mode requirements and
spread-spectrum support for EMI management.
The TSUM66AVHJ-1 also incorporates a new Dynamic Frame Rate (DFR) generator1 for the digital
output video to the display panel that preserves the advantages of a fixed output clock rate, while
eliminating the output end of frame short-line.
PIN DESCRIPTION
Analog Interface
Pin Name Pin Type Function Pin
HSYNC0 Schmitt Trigger Input w/ 5V-tolerant
Analog HSYNC input from channel 0 Pin 37
VSYNC0 Schmitt Trigger Input w/ 5V-tolerant
Analog VSYNC input from channel 0 Pin 38
REFP Internal ADC top de-coupling pin Pin 34
REFM Internal ADC bottom de-coupling pin Pin 33
RIN0P Analog Input Analog red input from channel 0 Pin 32
RIN0M Analog Input Reference ground for analog red input from channel 0 Pin 31
SOGIN0 Analog Input Sync-on-green input from channel 0 Pin 30
GIN0P Analog Input Analog green input from channel 0 Pin 29
GIN0M Analog Input Reference ground for analog green input from channel 0 Pin 28
BIN0P Analog Input Analog blue input from channel 0 Pin 27
BIN0M Analog Input Reference ground for analog blue input from channel 0 Pin 26
RIN1M Analog Input Reference Ground for Analog Red Input from Channel 1 Pin 25
RIN1P Analog Input Analog Red Input from Channel 1 Pin 24
GIN1M Analog Input Reference ground for analog green input from channel 1 Pin 23
GIN1P Analog Input Analog green input from channel 1 Pin 22
SOGIN1 Analog Input Sync-on-green input from channel 1 Pin 21
BIN1M Analog Input Reference ground for analog blue input from channel 1 Pin 20
BIN1P Analog Input Analog blue input from channel 1 Pin 19
VSYNC1 Schmitt Trigger Input w/ 5V-tolerant
Analog VSYNC input from channel 1 Pin 18
HSYNC1 Schmitt Trigger Input w/ 5V-tolerant
Analog HSYNC input from channel 1 Pin 17
REXT External resistor 390 ohm to AVDD_DVI Pin 15
DVI Interface
Pin Name Pin Type Function Pin
R+ Input DVI Input C RED Pin 3
R- Input DVI Input Channel
–
RED Pin 4
G+ Input DVI Input C GREEN Pin 6
G- Input DVI Input Channel
–
GREEN Pin 7
B+ Input DVI Input C BLUE Pin 9
B- Input DVI Input Channel
–
BLUE Pin 10
CK+ Input DVI Input Clock Pair + Pin 12
CK- Input DVI Input Clock Pair
–
Pin 13
Video Interface
Pin Name Pin Type Function Pin
VCLK Input w/ 5V-tolerant BT656 Clock Input Pin 55
VD[7:0] Input w/ 5V-tolerant BT656 Data Input Bit[7:0] Pin 63-56
Serial Flash Interface
Pin Name Pin Type Function Pin
SDO Input w/ 5V-Tolerant SPI Flash Serial Data Output Pin 44
CSZ Output SPI Flash Chip Select Pin 45
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N1900w-1E
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