PI3041A Datasheet, PDF (15/18 Pages) AMI SEMICONDUCTOR – Contact Image Sensor 300DPI CIS Sensor Chip

Preliminary PI3041A datasheet
Switching Characteristics @ 25^o C.
The timing relationships of the video output voltage and its two input clocks the start pulse, SP, and
the shift register clock, CP, along with the shift register EOS output clock are shown in Figure 7,
Timing Diagram Of The PI3041A Sensor. The switch timing specification for the symbols on the
timing diagram is given in Table 9, Timing Symbol's Definition below the timing diagram. The digital
clocks' levels are +5 Volts CMOS compatible. The video, IOUT, is defined in Figure 4, Video Pixel
Output in section Output Circuit Of The Image Sensor.
Figure 7. Timing Diagram Of The PI3041A Sensor
Item
Symbol Minimum Mean
Maximum
Clock cycle time
to
200
10000
Clock pulse width⁽¹⁾
tw
50
Clock duty cycle
25
50
75
Data setup time
tds
20
Data hold time
tdh
20
Prohibit crossing time⁽²⁾ tprh
20
EOS rise delay
terdl
60
EOS fall delay
tefdl
70
Signal delay time⁽³⁾
tdl
20
Signal settling time⁽³⁾ ts/h
120
Table 9. Timing Symbol's Definition
Units
ns
ns
%
ns
ns
ns
ns
ns
ns
ns
Notes (1) The clock pulse width, tw, varies with frequency, as well as, the duty cycle.
Page 15 of 18 Date: 09/23/05