CMOS linear image sensor

S11639

5

Timing chart

KMPDC0399EB

Parameter

Symbol

Min.

Typ.

Max.

Unit

tpi(ST)

98/f(CLK)

-

-

s

thp(ST)

6/f(CLK)

-

-

s

Start pulse low period

tlp(ST)

92/f(CLK)

-

-

s

Start pulse rise and fall times

tr(ST), tf(ST)

0

10

30

ns

Clock pulse duty

-

45

50

55

%

Clock pulse rise and fall times

tr(CLK), tf(CLK)

0

10

30

ns

*12: Dark output increases if the start pulse period or the start pulse high period is lengthened.

*13: The integration time equals the high period of ST plus 48 CLK cycles.

The shift register starts operation at the rising edge of CLK immediately after ST goes low.

The integration time can be changed by changing the ratio of the high and low periods of ST.

If the first Trig pulse after ST goes low is counted as the first pulse, the Video signal is acquired at the rising edge of the 89th Trig

pulse.

CLK

ST

tf(CLK)

tf(ST)

tr(ST)

tr(CLK)

tlp(ST)

thp(ST)

tpi(ST)

1/f(CLK)

art (S11638)

1

1

89

2 34

2048

1

5

1 2 34

51 52 53

87 88 89

CLK

ST

Video

Trig

EOS

thp(ST)

tlp(ST)

tpi(ST)

87 clocks

2048

Integration time