PI6050D Datasheet, PDF (11/15 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

PI6050D Data Sheet
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Figures 4 and 5 show the initialization of the first sensor in relation to its subsequent cascaded sensors. The
Start Input Control (SIC) selects the first sensor to operate with 55 clock cycles of delay by connecting it to Vdd
on the first sensor and to Ground for all of the subsequent sensors. Hence the first sensor will operate with 110
inactive pixels being clocked out before its first active pixel is clocked out.
GBST
CLK
SO
VOUT
1
2
3
52
53
54
55
56
57
58
59
217 218 219 ₂₂₃ 224 _{225 226 227}
110 Inactive Pixels (55 Clocks)
1 23456
344 Active Pixels (172 Clocks)
Figure 4. Overall Timing Diagram for the 600 dpi mode
GBST
CLK
SO
VOUT
1
2
3
52
53
54
55
56
57
58
59
389 390 391 ₃₉₅ 396 _{397 398 399}
110 Inactive Pixels (55 Clocks)
1 23456
688 Active Pixels (344 Clocks)
Figure 5. Overall Timing Diagram for the 1200 dpi mode
Page 11 of 15, PI6050D_rev A, Revised 1-31-05