Electro-optical characteristics at 25°C.

Parameter

Symbol

Parameter

Units

Note

Total Number of photo

detectors

2592

elements

The sum of

both

sections

Number detectors in

Section 1

1248

elements

Number of detectors in

Section 2

1344

elements

Pixel to pixel spacing

84.7

µm

Line scanning rate

270

µsec

@ 5.0 MHz

clock

frequency

f

5.0

MHz

Vpavg

1.0

Volts

Bright output

Up

<+/-30

%

Adjacent pixel

Uadj

<25

%

Ud

<100

mV

Vd

<150

mV

Average

dark level

from the

video reset

level.

Typical Modulation

MTF

50

%

Table 4. Electro-optical characteristics at 25° C.

Definition:

(1) Tint: Line scanning rate or integration time. Tint is determined by the interval of two

SP, start pulses. The line scan time is determined by the longest array with both section 1

and 2 operating in parallel. Longest array is section 2, with 1344 pixels, running at 5MHz

pixel rate.

(2) f: main clock frequency,

(3) Vpavg =

∑ Vp(n)/1248 for section 1 and Vpavg = ∑ Vp(n)/1344 for section 2,

where: Vp(n) is the peak value of any n

This level is factory adjusted with an internal potentiometer after setting the scan

times to a the minimum allowable for a fixed clock frequency. In this case,

≈

275

µsec at 5MHz clock frequency. This value is then used as reference to adjust

the dark level and to call out the dark uniformity, see note 6 on dark uniformity.

(4) Up is defined as follows: Upmax = [(Vpmax - Vpavg) / Vpavg] x 100% or Upmin =

[(Vpavg - Vpmin) / Vpavg] x 100%

PAGE 5 OF 9 - PI324MC-A4, 11-15-00