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Confidential
HV7161SPA2
CMOS Image Sensor
With Image Signal Processing
This document has a general product description and is subject to change without notice.
MagnaChip Semiconductor Ltd. does not assume any responsibility for use of circuits described
and no patent licenses are implied.
- 28 -
2005 MagnaChip Semiconductor Ltd.
Reserved
0
There are three color gain registers for R, G, and B pixels, respectively. Programmable range is
from 0.5X ~ 3.5X. Effective Gain = 0.5 + B<6:0>/42.4. These registers may be used for white
balance and color effect with independent R,G,and B color control. Recommend gain is 1.0X (15h).
Amp Gain for Pixel Output [PGAVAL : 17h : 08h]
7
6
5
4
Amp Gain
0
0
0
0
Amp Gain is common gain for R, G, B channel and used for auto exposure control. Programmable
range is from 0.5X ~ 16.5X. Default gain is 1.0X.
Gain = 0.5 + B<7:0>/16
Amp Gain Minimum Value [PGAMIN : 18h : 00h]
7
6
5
4
Amp Gain Minimum
0
0
0
0
Amp Gain Minimum Value is minimum value of amplifier gain when sensor adjusts amplifier gain
for auto exposure control. Programmable range is same as Amp Gain. Default value is 0.5X.
Amp Gain Maximum Value [PGAMAX : 19h : ffh]
7
6
5
4
Amp Gain Maximum
1
1
1
1
Amp Gain Maximum Value is maximum value of amplifier gain when sensor adjusts amplifier gain
for auto exposure control. Programmable range is same as Amp Gain. Default value is 16.5X.
Amp Gain Normal Value [PGANOM : 1ah : 08h]
7
6
5
4
Amp Gain Normal
0
0
0
0
Amp Gain Normal Value is reference value of amp gain when sensor adjusts amp gain for auto
exposure control. First, sensor controls integration time before adjusting amp gain for auto
exposure control. After integration time is changed to the minimum or maximum value, sensor
adjusts amp gain from this register value. Refer to figure of AE mode2 register(71H).
Programmable range is same as Amp Gain. Default value is 1.0X.
Blue Amplifier Gain
0
0
0
1
1
0
1
3
2
1
0
1
0
0
0
3
2
1
0
0
0
0
0
3
2
1
0
1
1
1
1
3
2
1
0
1
0
0
0