Analog-To-Digital Converter - Point Grey Flea3 GigE Technical Reference

Point Grey Flea3 GigE Technical Reference
1.3

Analog-to-Digital Converter

The camera sensor incorporates an analog to digital converter (ADC) to digitize the images produced by the CCD.
The Flea3 GigE's ADC is configured to a fixed bit output. If 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 12-bit conversion produces 4,096 possible digital image values between 0 and 65,520, left-aligned across a 2-byte
data format. The four unused bits are padded with zeros.
12-bit, 50 MHz
0 LSB to 255.75 LSB, 0.25 LSB steps
-3 dB to 6 dB, 3 dB steps
6 dB to 42 dB, 10-bit
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 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
pixel format
Model ADC
FL3-GE-03S1M-C 12-bit
FL3-GE-03S1C-C 12-bit
FL3-GE-03S2M-C 12-bit
FL3-GE-03S2C-C 12-bit
FL3-GE-08S2M-C 12-bit
FL3-GE-08S2C-C 12-bit
FL3-GE-13S2M-C 12-bit
FL3-GE-13S2C-C 12-bit
FL3-GE-14S3M-C 12-bit
FL3-GE-14S3C-C 12-bit
FL3-GE-20S4M-C 12-bit
FL3-GE-20S4C-C 12-bit
FL3-GE-28S4M-C 12-bit
FL3-GE-28S4C-C 12-bit
FL3-GE-50S5M-C 12-bit
FL3-GE-50S5C-C 12-bit
1 Flea3 GigE Specifications
selected has fewer bits per pixel than the
5