CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev. 6.2
6421 Congress Ave.
7/7/2015
Boca Raton, FL 33487
+1 (561) 989-0006
63 of 152
MSB
Internal Camera - 12 bits
LSB
D9
D8
D7 D6 D5 D4 D3 D2
D1 D0
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
P9
P8
P7 P6 P5 P4 P3 P2
P1 P0
0
0
MSB
Camera Output - 10 bits
LSB
D9
D8
D7 D6 D5 D4 D3 D2
D1 D0
P9
P8
P7 P6 P5 P4 P3 P2
P1 P0
MSB Camera Output - 8 bits
LSB
D7
D6
D5 D4 D3 D2 D1 D0
P9
P8
P7 P6 P5 P4 P3 P2
Figure 2.13 10-bit internal digitization with 8, 10 and 12-bit outputs
2.12.2 Output Taps
CHEETAH camera series supports Camera Link Base (1 or 2 Tap), Medium (4 tap),
Full (8 tap) or Deca (10 taps). The amount of data that can be transferred per unit
time increases with the number of taps selected. The camera reduces the image
sensor output rate to match the bandwidth of the output based on the number of taps
selected by changing the minimum line readout time. For example, if one output taps
is selected, then the minimum line time is set to 15,200 clocks (~93 micro-seconds),
whereas if dual output taps are selected, then the minimum line time reduces to 7550
(47 micro-seconds / line) clocks. See Table 2.7 below.
Output
Taps
Min. Line
Clocks
Min. Line
Time (uS)
Max. C4080
Full Res.
Frame Rate
(fps)
1
15200
93
6.7