Analog-To-Digital Converter - Point Grey Gazelle GZL-CL-22C5M-C Technical Reference

Point Grey Gazelle Technical Reference
1.8

Analog-to-Digital Converter

All CMOS camera sensors incorporate an on-chip analog to digital converter.
The Gazelle's ADC is configured to a fixed bit output. If the pixel format selected has fewer bits per pixel than the
ADC output, the least significant bits are dropped. If the pixel format selected has greater bits per pixel than the ADC
output, the least significant bits are padded with zeros.
A 10-bit conversion produces 1,024 possible values between 0 and 65,472. Image data is left-aligned across a 2-byte
format. The least significant bits are always zero.
The bit depth of the output varies between sensors and can be seen in the table below. Image data is left-aligned across
a 2-byte format. The least significant bits, which are the unused bits, are always zero.
For example, for a 12 bit output, the least significant 4 bits will be zeros in order to fill 2 bytes. E.g. 0xFFF0.
Revised 10/31/2013
Copyright ©2011-2013 Point Grey Research Inc.
Model ADC
GZL-CL-22C5M-C 10-bit
GZL-CL-41C6M-C 10-bit
1 Gazelle Specifications
10