Operation 29
RM/TM-4200GE Series
At a specific gain setting, the offset (minimum level.... dark point) and A/D reference top voltage (maximum
level... saturation point) are set to 12-bit A/D input so that the full dynamic range of the CCD is utilized at 12-
bit references as the input and the LUT output is converted into either 8-bit or 10- bit to adjust the gamma
correction. There is no 12-bit LUT.
The look-up table has two knee points (variable gamma selection) that allow the 10-bit input to be segmented
into three regions. The look-up table selection can be made by knee curve direct input.
3.5
External Sync and Pixel Locking
The TM-4200GE accepts an external sync of standard HD and VD at TTL level for general locking to a system
sync and clock. The frequency requirement is as follows:
Full Progressive Scan:
fHD = 30.769 KHz ± 2%
fVD = 14.79 Hz ± 2%
(Internal Master clock = 80.00 MHz,
Pixel clock = 40.00 MHz)
100L Partial Scan:
fHD = 30.769 KHz ± 2%
fVD = 27.97 Hz ± 2%
500L Partial Scan:
fHD = 30.769 KHz ± 2%
fVD = 49.63 Hz ± 2%
250L Partial Scan:
fHD = 30.769 KHz ± 2%
fVD = 79.92 Hz ± 2%
3.6
Camera Timing Charts
Table 5
TM-4200GE Timing table
Timing Scan
Mode
Unit
A B C
D
U
T
Z
tA dual 1300 1300 1300
1300
1300
728
1924 Unit
single 2392 2393 2392
2393
2393
1274
3016
tB dual 1024 1024 1024
1024
1024
512
256
Pixel Clock
single 2048 2048 2048
2048
2048
1024
512
tC dual 276 276 276
276
276
216
1668
single 344 344 344
344
344
250
2504
tD dual 176 176 176
176
176
166
800
single 176 176 176
176
176
166
800
tE dual 100 100 100
100
100
50
868
single 168 168 168
168
168
84
1704
tF 80 80 80
80
80
40
80
tG
224 224 224
224
224
112
224
tH
A, B, C, D, U and Z: n*tA + 822 (n=1, 2, 3, …)
Pixel Clock
T: n*tA = 411 (n=1, 2, 3, …)
tJ dual 100 100 100
100
100
50
868
Video Line
single 166 166 166
166
166
83
1702
