ht82v14 Holtek Semiconductor Inc., ht82v14 Datasheet - Page 10

• Manufacturer Part Number: ht82v14
• Description: 14-bit Ccd/cis Analog Signal Processor
• Manufacturer: Holtek Semiconductor Inc.

Gain registers for R, G and B
Note: VGA: Variable Gain Amplifier, formula: gain=1+ x
Offset registers for R, G and B
Note: Offset range from -200mV to +200mV, 8-bit, 256 levels; (00.....0) equal to -200mV, (100.....0)
Color index register
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
PGA: Programmable Gain Amplifier (PGA): specifies R, G, B sequence by color index register,
formula: gain=1+
equal to 0mV, and (11.....1) equal to +198.4mV.
Reserved
Reserved
Reserve
Index for 3 channel mode
Index for 3 channel mode
Index for 3 channel mode
Index for 1 channel mode
Index for 1 channel mode
Function
MSB of Coarse Gain (VGA)
LSB of Coarse Gain (VGA)
Reserved
MSB of Fine Gain (PGA)
LSB of Fine Gain (PGA)
Function
MSB of Offset word
LSB of Offset word
31
x
where x=0~31
10
1.5
where x=0~3
HT82V14
July 12, 2000