CYII4SM1300AA CYPRESS [Cypress Semiconductor], CYII4SM1300AA Datasheet - Page 21

• Manufacturer Part Number: CYII4SM1300AA
• Description: IBIS4-1300 1.3 MPxl Rolling Shutter CMOS Image Sensor
• Manufacturer: CYPRESS [Cypress Semiconductor]

End-of-Scan: EOS_YL, EOS_YR, EOS_X
All three shift registers are equipped with 'end-of-scan' pulses.
These pulses are low during the clock period after the last pixel
or row has been read out, also in viewfinder mode.
At the EOS_X pulse, the electrical dark reference level is put on
the readout bus. This voltage remains on the bus until the SIN
pulse goes high. During the row blanking time, this voltage can
be used for the offset adjustment of the output amplifier. The SIN
high forces the DCREF voltage on the output bus.
We advise not to use the EOS pulses as an input for the row
blanking time sequence generation, but to use simple counters
Document Number: 38-05707 Rev. *C
Line
selected
CLCK_Y
SYNCY
n-
Clock
EOS
Min 25 ns
Figure 16. Timing of Y Shift Registers (for Row Selection)
n
nil
Figure 17. End-of-Scan Pulse
0
Dummy rows
1
Col 1286
Row 1030
Col 321
Row 257
Min 100 ns.
instead. If by some reasons the EOS signal is absent or subject
to glitches, the system would hang. EOS is intended as
diagnostic means.
Row Initialization
During the row blanking time (which occurs at the beginning of
every row read), several tasks are executed: selection of a new
row, readout of this row by double sampling, reset of a new row,
and possibly (slow) offset adjustment of the output amplifier.
Therefore, a pulse patterns must be applied to several signals
during this time. There is some freedom to make this pattern. The
constraints are listed below:
2
0
3
1
4
5
CYII4SM1300AA
Page 21 of 35
[+] Feedback