TH7887A Datasheet, PDF (8/21 Pages) ATMEL Corporation – Area Array CCD Image Sensor 1024 x 1024 Pixels with Antiblooming

Timing Diagram
The following diagrams are given for:
• 20 MHz readout frequency
• 1.25 MHz vertical transfer frequency
Readout of one image is performed in 2 steps:
• image zone to memory zone transfer
• memory zone to register transfer and readout of register
This last step is also an integration period, the duration of which can also be increased
according to the required frame rates.
Figure 5. Frame Timing Diagram
ΦA
Φ P1
Integration period
Picture readout
Memory zone
Cleaning period (*)
Image to memory zone
Transfer
Φ P2
Φ P3
Φ P4
1
5
Φ M1=Φ M
1044
1044 pulses
Φ M2
Φ M3
Φ M4
Φ L1
1
5
1044
See fig. 7
Φ L2
ΦR
See fig. 6
(*) During the cleaning period, memory clocks must be pulsed as during readout time
(specially for high temperature applications).
8 TH7887A
2146A–IMAGE–05/02