Cheetah KAC Camera User Manual | Camera Link (CLF) Interface
October 1, 2019
Page
110
of
135
Rev 7.2
2ms (so the WDR exposure occurs 2ms before the end of the frame time), use
the Fixed Frame Period control to increase the frame time by 2ms to 22ms.
•
Use trigger mode. In this mode, exposure and readout do not overlap, hence,
WDR image artifacts do not occur.
5.12 Data Output Format
5.12.1 Bit Depth
You can vary the internal digitization level within the image sensor to improve frame rate.
A 10-bit digitization level allows the analog-to-digital converter (ACD) to settle more
quickly, enabling higher frame rates while 12-bit digitization levels provide higher dynamic
range at the expense of frame rate. The camera can output the data in 12, 10, or 8-bit
format. In 8-bit output, a standard bit reduction process is used and the least significant
bits are truncated.
12-bit digitization
•
If the camera is set to output 12-bit data, the image sensor data bits map to D0
(LSB) to D11 (MSB) output bits.
•
If the camera is set to output 10-bit data, the image sensor most significant data
bits [D2 to D11] map to the D0 (LSB) to D9 (MSB) output bits.
•
If the camera is set to output 8-bit data, the image sensor most significant data
bits [D4 to D11] map to D0 (LSB) to D7 (MSB).
Table 25: 12-bit Internal Digitization with 8, 10, 12-bit Outputs.
MSB
Internal Camera - 12 bits
LSB
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 P0
MSB
Camera Output - 12 bits
LSB
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 P0
MSB
Camera Output - 10 bits
LSB
D9
D8 D7 D6 D5 D4 D3 D2 D1 D0
P11 P10 P9 P8 P7 P6 P5 P4 P3 P2
MSB Camera Output - 8 bits
LSB
D7
D6 D5 D4 D3 D2 D1 D0
P11 P10 P9 P8 P7 P6 P5 P4
