mt9v032 aptina, mt9v032 Datasheet - Page 45

• Manufacturer Part Number: mt9v032
• Description: 1/3-inch Wide-vga Cmos Digital Image Sensor
• Manufacturer: aptina

Variable ADC Resolution
Figure 23:
PDF: 6538045704/Source:2194051501
MT9V022_DS - Rev. C 9/10 EN
12- to 10-Bit Companding Chart
When the auto adjust enabler is disabled (default),
through the two-wire serial interface:
t
enabled then the auto knee adjust must also be enabled.
By default, ADC resolution of the sensor is 10-bit. Additionally, a companding scheme of
12-bit into 10-bit is enabled by the R0x1C (28). This mode allows higher ADC resolution
which means less quantization noise at low-light, and lower resolution at high light,
where good ADC quantization is not so critical because of the high level of the photon’s
shot noise.
INT may be based on the manual setting of R0x0B or the result of the AEC. If the AEC is
1,024
10-bit
Codes
768
512
256
256
t
2 = (R0x09, bits 14:0) - (R0x08, bits 14:0)
512
No companding (256
1,024
2 to 1 Companding (256
t
1 = R0x08, bits 14:0
t
3 =
t
4 to 1 Companding (1,536
INT -
2,048
46
t
256)
1 -
-8 to 1 Companding (2,048
t
MT9V032: 1/3-Inch Wide-VGA Digital Image Sensor
2
128)
4,096
384)
12-bit
Codes
t
1,
Aptina reserves the right to change products or specifications without notice.
t
2, and
256)
t
3 may be programmed
©2005 Aptina Imaging Corporation. All rights reserved.
Feature Description
(EQ 5)
(EQ 6)
(EQ 7)