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參數(shù)資料
| 型號(hào)： | CYII4SM1300AA-QBC |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 1.3 MPxl Rolling Shutter CMOS Image Sensor |
| 中文描述： | 1.3 MPxl卷簾門的CMOS圖像傳感器 |
| 文件頁數(shù)： | 25/37頁 |
| 文件大?。?/td> | 1168K |
| 代理商： | CYII4SM1300AA-QBC |
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IBIS4-1300
Document Number: 38-05707 Rev. *B
Page 25 of 37
Figure 20. Timing of X shift register and pixels read-out
On-chip generated electrical dark references.
The sensor outputs a electrical dark reference level after the
2nd falling edge on the clock (after sync).
At the end of the row readout, after EOS_X becomes low, the
sensor outputs the electrical dark reference voltage also, and
it remains present on the on the readout bus until the SIN goes
high.
Note that if the X-register is reset before the EOS is reached,
the dark reference is not put on the bus. Use the dark
reference of the beginning of the line instead.
Pixel readout
The same continuous 10 MHz clock drives CLK_ADC and
CLK_X. On the falling edge of CLK_X, a new pixel is selected
and propagates to the output amplifier. At the same time, the
ADC input is frozen by the falling edge on CLK_ADC. The
digital output has a delay of one pixel compared to the analog
signal. The digital output becomes valid between 25 to 50 ns
after the falling edge on CLK_ADC.
Figure 21. pixel timing
If the end of a row is reached, the sensor outputs an
end-of-scan (EOS) pulse during one pulse period. And the
electrical black reference level appears at the output for all
successive pulses. So, the same 10 MHz clock can drive
CLK_X and CLK_ADC.
DCREF on bus
Sync
Clock
Min 100 ns.
Min 25 ns
0
1
2
3
4
dark
nil
n
n-1
Dummy pixels
1
Output
0
Tp,adc
[+] Feedback
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| CYII4SM1300AA-QDC | 制造商:Cypress Semiconductor 功能描述:CYII4SM1300AA-QDC |
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