GM2120 查看數據表（PDF） - Genesis Microchip

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GM2120

XGA/SXGA LCD Controller

Genesis Microchip 

*** Genesis Microchip Confidential ***

gm5110/20 Preliminary Data Sheet

3. GM5110/20 PIN LIST

I/O Legend: A = Analog, I = Input, O = Output, P = Power, G= Ground

Pin Name

AVDD_RED

RED+

RED-

AGND_RED

AVDD_GREEN

GREEN+

GREEN-

AGND_GREEN

AVDD_BLUE

BLUE+

BLUE-

AGND_BLUE

AVDD_ADC

ADC_TEST

AGND_ADC

SGND_ADC

GND1_ADC

VDD1_ADC_2.5

GND2_ADC

VDD2_ADC_2.5

Table 1. Analog Input Port

No. I/O Description

172 AP

171 AI

170 AI

169 AG

168 AP

167 AI

166 AI

165 AG

164 AP

163 AI

162 AI

161 AG

160 AP

159 AO

158 AG

157 AG

156 G

155 P

154 G

153 P

Analog power (3.3V) for the red channel. Must be bypassed with decoupling capacitor to

AGND_RED pin on system board (as close as possible to the pin).

Positive analog input for Red channel.

Negative analog input for Red channel.

Analog ground for the red channel.

Must be directly connected to the analog system ground plane.

Analog power (3.3V) for the green channel. Must be bypassed with decoupling capacitor to

AGND_GREEN pin on system board (as close as possible to the pin).

Positive analog input for Green channel.

Negative analog input for Green channel.

Analog ground for the green channel.

Must be directly connected to the analog system ground plane.

Analog power (3.3V) for the blue channel. Must be bypassed with decoupling capacitor to

AGND_BLUE pin on system board (as close as possible to the pin).

Positive analog input for Blue channel.

Negative analog input for Blue channel.

Analog ground for the blue channel.

Must be directly connected to the analog system ground plane.

Analog power (3.3V) for ADC analog blocks that are shared by all three channels. Includes

band gap reference, master biasing and full-scale adjust. Must be bypassed with

decoupling capacitor to AGND_ADC pin on system board (as close as possible to the pin).

Analog test output for ADC Do not connect.

Analog ground for ADC analog blocks that are shared by all three channels. Includes band

gap reference, master biasing and full-scale adjust.

Must be directly connected to analog system ground plane.

Dedicated pad for substrate guard ring that protects the ADC reference system.

Must be directly connected to the analog system ground plane.

Digital GND for ADC clocking circuit.

Must be directly connected to the digital system ground plane

Digital power (2.5V) for ADC encoding logic. Must be bypassed with decoupling capacitor to

GND1_ADC pin on system board (as close as possible to the pin).

Digital GND for ADC clocking circuit.

Must be directly connected to the digital system ground plane.

Digital power (2.5V) for ADC encoding logic. Must be bypassed with decoupling capacitor to

GND2_ADC pin on system board (as close as possible to the pin).

June 2002

4

C5110-DAT-01C

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