TC255P Datasheet, PDF (5/18 Pages) Texas Instruments – 336- × 244-pixel ccd image sensor

TC255P
336- × 244-PIXEL CCD IMAGE SENSOR
SOCS057 – JUNE 1996
image-storage area
After exposure, the image-area charge packets are transferred through the image-clear line to the storage area.
The stored charge is then transferred line by line into the serial register for readout. Figure 3 illustrates the timing
to (1) transfer the image to the storage area and (2) to transfer each line from the storage area to the serial
register.
serial register
After each line is clocked into the serial register, it is read out pixel by pixel. Figure 3 illustrates the serial-register
clock sequence.
244 Cycles
Composite
Blank
ABG
Integration Time
Electronic
Shutter
Operation
244 Clocks
244 Clocks
IAG1
IAG2
SAG
SRG
339 Cycles
SAG
1)
2)
3)
SRG
1) End of serial readout of line
2) Transfer of new line to serial register
3) Beginning of readout of new line
IAG1
IAG2
SAG
t = 80 ns
SRG
Expanded Section of Parallel Transfer
Figure 3. Timing Diagram
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