AMIS-721250 Datasheet, PDF (9/12 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

AMIS-721250: Contact Image Sensor
Data Sheet
CLK
GBST
VOUT
SI/SO
CLKpw
CLKpw
Thold
Tset
CLKp
50%
CLKrt
GBSTrt
GBSTft
Prt
90%
Pft
10%
CLKft
Figure 6: Rise and Fall Times for both the 600/1200dpi Modes
SI/SOrt
SI/SOft
CLK
Tset
GBST
Tset
1
Thold
2
Thold
55 56 57 58
Video Signal (Vout)
12 3
108 109 ^{110 111 112} 113 114 ¹¹⁵
Figure 7: Timing of GBST-to-first Pixel of the First Sensor for both the 600/1200dpi Modes
Figures 8 and 9 show the timing of the SI/SO, which comes out in line with the 324^th pixel for the 600dpi mode and with the 668^th pixel
for the 1200dpi mode. The SO from the first sensor enters as the SI clock of the second and subsequent sensors; hence all subsequent
sensors will start their register scan after each of the preceding sensors completes its scan.
The last active pixel of each sensor is the 344^th pixel for the 600dpi mode and 688^th pixel for the 1200dpi mode.
AMI Semiconductor – Dec. 05, M-20496-004
9
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