Camera interfaces
148
Goldeye G/CL Technical Manual V4.1.1
Timing
All Goldeye CL models provide the possibility to adapt the timing parameters of the
camera.
The timing of the data transfer is based on the Camera Link pixel clock frequency as
well as on enable signals defined in the Camera Link protocol. Selecting a lower
clock frequency and extending the gaps between the FVAL and LVAL enable signals
help to avoid bit errors in data transfer. Thus, it may allow to extend the usual cable
length or to use less expensive cables.
Changing the clock frequency
With each Goldeye CL camera, it is possible to select several clock frequencies -
see Table 100 .
Changing the clock frequency also has an influence on the maximum frame-rate
achievable. The tables below summarize the achievable frame rates for all Goldeye
Camera Link models.
Camera
CL-008
CL-032
CL-033
Frequencies
25 MHz
40 MHz
25 MHz
40 MHz
25 MHz
55 MHz
85 MHz
Table 100: Possible clock frequencies with all Goldeye CL camera models.
Mono 8, Mono 12 (2 Taps)
Mono 14 (1Tap)
(ROI (W × H
)
25 MHz
40 MHz
25 MHZ
40 MHz
320 × 256 (full res.)
344
344
274
344
320 × 240
366
366
292
366
160 × 120
1117
1117
1059
1117
128 × 32
4273
4273
4273
4273
128 × 8
12345
12345
12345
12345
Table 101: Goldeye CL‐008 ‐ maximum achievable frame rates
