MT9V022IA7ATM Aptina LLC, MT9V022IA7ATM Datasheet - Page 27

• Manufacturer Part Number: MT9V022IA7ATM
• Description: SENSOR IMAGE VGA MONO 52IBGA
• Manufacturer: Aptina LLC
• Type: CMOS Imagingr
• Series: DigitalClarity®r

Specifications of MT9V022IA7ATM

• Pixel Size: 6µm x 6µm
• Active Pixel Array: 752H x 480V
• Frames Per Second: 60
• Voltage - Supply: 3.3V
• Package / Case: 52-IBGA
• Sensor Image Color Type: Monochrome
• Sensor Image Size Range: 250,920 to 480,000Pixels
• Sensor Image Size: 752x480Pixels
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Package Type: IBGA
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 52
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1205

Variable ADC Resolution
PDF: 3295348826/Source:7478516499
MT9V022_DS - Rev.H 6/10 EN
The parameters of the step voltage V_Step which takes values V1, V2, and V3 directly
affect the position of the knee points in Figure 22.
Light intensities work approximately as a reciprocal of the partial exposure time. Typi-
cally,
shortest for the first slope, providing the highest sensitivity.
There are two ways to specify the knee points timing, the first by manual setting (default)
and the second by automatic knee point adjustment.
When the auto adjust enabler is set to HIGH (LOW by default), the MT9V022 calculates
the knee points automatically using the following equations:
As a default for auto exposure,
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
The register settings for V_Step and partial exposures are:
V1 = R0x31, bits 4:0
V2 = R0x32, bits 4:0
V3 = R0x33, bits 4:0
V4 = R0x34, bits 4:0
t
INT =
t
1 is the longest exposure,
t
2 = (R0x09, bits 14:0) - (R0x08, bits 14:0)
t
1 +
t
2 +
t
t
2 =
3 =
t
t
3
1 = R0x08, bits 14:0
t
t
INT x (½)
INT x (½)
t
t
3 =
1 =
t
t
INT -
INT -
R0x0A, bits 3:0
R0x0A, bits 7:4
27
t
t
2 -
t
1 -
t
2 is 1/16 of
2 shorter, and so on. Thus the range of light intensities is
t
t
3
MT9V022: 1/3-Inch Wide-VGA Digital Image Sensor
2
t
INT,
t
3 is 1/64 of
t
1,
Aptina reserves the right to change products or specifications without notice.
t
2, and
t
INT.
t
3 may be programmed
©2005 Aptina Imaging Corporation. All rights reserved.
Feature Description
(EQ 1)
(EQ 2)
(EQ 3)
(EQ 4)
(EQ 5)
(EQ 6)