CMOS area image sensors

S10830, S10834

2

Recommended operating conditions

Electrical characteristics (Ta=25 °C, Vdd=5 V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power supply

Vdd

4.75

5.0

5.5

V

High

Vsigi(H)

2.4

3.3

Vdd + 0.25

V

Low

Vsigi(L)

0

-

0.4

*1: Vsigi(H) is a “High” period voltage of MST and MCLK, Vsigi(L) is a “Low” period voltage of MST and MCLK.

Parameter

Symbol

Min.

Typ.

Max.

Unit

Master clock pulse frequency

f(MCLK)

1 M

20 M

40 M

Hz

Digital output format

-

LVDS differential output

-

Digital output

frequency

f(DO)

-

f(MCLK)

-

Hz

-

f(MCLK)/56

-

V(DOmag)

-

350

-

mV

tr(DO)

-

2

5

ns

tf(DO)

-

2

5

ns

Video data rate

VR

-

f(MCLK)/14

-

Hz

Trigger photodiode

VR2

-

f(MCLK)/7168

-

Hz

T(ST-I)

22.7 M

-

-

MCLK

Integration time

-

PW(MST) + 394/f(MCLK)

s

6608/f(MCLK)

s

Consumption current

P1

-

55

110

mA

P2

-

25

50

mA

*2: Refer to “Timing chart”, Image data readout.

*3: Refer to “Timing chart”, Trigger photodiode data readout.

*4: The output voltage difference between LVDS differential terminals with 100 Ω termination

*5: The time in output from 10% to 90% or from 90% to 10% with 2 m long cable

*6: It takes 14 master clock pulse cycles to read out 1 pixel

*7: It takes 22.7 M master clock pulse cycles to read out 1 frame of an image. The readout of the next frame must be started after

finishing the readout of previous frame.

*8: Refer to “Timing chart”, PW(MST) is “Low” pulse width of MST (master start pulse).

e.g.) When the PW(MST) is 10 ms and f(MCLK) is 20 MHz:

Integration time = 10 ms + 394/20 M = 10.0197 ms

*9: Refer to “Timing chart”, The trigger photodiode is output every 7168 MCLK cycles. The integration time is 6608 MCLK cycles, and

560 MCLK cycles are used for the reset period of trigger photodiode.

e.g.) When the f(MCLK) is 20 MHz:

Integration time = 6608/20 M = 330.4 μs

*10: The consumption current of image sensor chip only. f(MCLK)=20 MHz

*11: The consumption current of image sensor chip only. Without 100 Ω termination (see “Output format” in P.7). f(MCLK)=20 MHz

1.0

0.8

0.9

(X-ray source: 60 kVp, filter: ABS 1.5 mm

0.5

0.4

0.7

0.6

0.3

0.2

0.1

0.0

04

6

2

8

12

14

10

Spatial frequency (line pairs/mm)

16

18

20

6000

(X-ray source: 60 kVp, filter: ABS 1.5 mm

4000

2000

0

0

100

200

Absorbed dose (µGy)

300

400

1500

1000

500

0

Resolution (S10834)

Response (S10834)

KMPDB0358EA

KMPDB0359EA