Benq PB6100 ユーザーズマニュアル

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        Below is the simple block diagram of PB6100 Main Board .   

 

  

 As the diagram shown above , here is the function of every discrete blocks .   

- 

      Analog RGB data input , the standard maximum analog input resolution is SXGA .There also 

some interface signals from the VGA cable , they are 

 ADHSYNC – Providing the Horizontal Synchronization signal to AD9883. 

 ADVSYNC  -  Providing  the  Vertical Synchronization signal AD9883. 

DDC interface – Providing Digital Display Channel , which include VCC(Pin9) , 

SCL(Pin15) , SDA(Pin12) . 

 

- 

The ADC converter digitizes the input analog RGB data signal from D_SUB and output the 

digital data streams to Image Processor .       

The normal voltage level of analog RGB input signals is about 0.7V , while the ADC digital 

signal output to Image Processor is LVTTL level , about 3.3V.   

The ADC , AD9883 could supports up to pixel rate at about 140MHZ , which is about SXGA 

75HZ analog input signal .   

D_
S

U

B

S-
V

id

e

o

RC

A

Video Decoder

SAA7118

Analg Flat Panel

Interface

AD9883

Image Processor

PW166

Flash

EEPROM

RGB

 8

8

8

Si

gn
a

ls

RGB888 signals

Address

Data

I2C

I2C

Control Signals

I2

C

Cont

ro

l Si
gna

ls

DMD Driver 

Clock 

GEN

Clock
signal

YUV 422

I2C

Control Signals