VV6501C001 STMicroelectronics, VV6501C001 Datasheet - Page 21

• Manufacturer Part Number: VV6501C001
• Description: IC SENSOR COLOR VGA CMOS 36CLCC
• Manufacturer: STMicroelectronics
• Type: CMOS Imagingr

Specifications of VV6501C001

• Pixel Size: 5.6µm x 5.6µm
• Active Pixel Array: 640H x 480V
• Frames Per Second: 30
• Voltage - Supply: 3V, 5V
• Package / Case: 36-CLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3883; VV6501C001

VV6501
3.1.12 Gain timing and exposure updates
Min.
Max (default-VGA)
Max (available)
The available range of exposure (without using clock division) is shown in
Exposure and gain values are re-timed within the sensor to ensure that a new set of values is only
applied to the sensor array at the start of each frame. Bit 0 of the status register is set high when a
new exposure value is written via the serial interface but has not yet been applied to the sensor
array.
There is a 1 frame latency between a new exposure value being applied to the sensor array and the
results of the new exposure value being read-out. The same latency does not exist for the gain
value. To ensure that the new exposure and gain values are aligned up correctly the sensor delays
the application of the new gain value by one frame relative to the application of the new exposure
value.
To eliminate the possibility of the sensor array seeing only part of the new exposure and gain
settings, if the serial interface communication extends over a frame boundary, the internal re-timing
of exposure and gain data is disabled while writing data to any location in the exposure page of the
serial interface register map. Thus, if the 5 bytes of exposure and gain data is sent as an auto-
increment sequence, it is not possible for the sensor to consume only part of the new exposure and
gain data.
Range
Table 7: Exposure ranges [24MHz system clock]
(no. lines)
Coarse
1023
522
0
Line length
(no. pixels)
1023
762
762
(no. pixels)
1023
Fine
762
11
1023
No. pixels
400,050
2
Functional Description
0
+ 1023
Table 7
Exposure
.
33.2 ms
87.3 ms
0.92 µs
Time
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