pixel value of the video pixel with exposure off. The references for these levels are the

dark level, VDL.

9. DARK OUTPUT VOLTAGE, VDL is the level between the out video pixel dark level and

the ground.

10. RANDOM NOISE, RNL, is measured using two methods, one is tangentially on the

scope. This measures an approximate peak-to-peak, p-p, random thermal noise. The

other is in terms of rms. It is estimated by using the Gaussian Statistical Methods. One

pixel is selected out of a line scan and its peak values are recorded for a multiple line

scans. These random peak values are used to estimate the rms values.

11. MODULATION TRANSFER FUNCTION depends on the optical system. Since this

system relies on the users optical system it was not measured. Refer back to note 5,

measurements on Up, all notes that references the optical measurements applies to

MTF measurements as well. Using a conservative engineering estimate, the sensor’s

MTF is in excess of 70% at the Optical Nyquest Frequency.

7.0 ELECTRICAL CLOCKING CHARACTERISTICS.

TABLE 7.1 CLOCK AMPLITUDE AND DUTY CHARACTERISTICS

SPECIFICATION

ITEM

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

CLOCK

INPUT

VOLTAGE

For values

see the notes

See note

(1) for

values

CLOCK

INPUT

CURRENT

See note

(1) for

values

CLOCK

FREQUENCY

0.100

5.0

6.0

MHz

LINE READ

TIME

160

192

1000

m

s

CLOCK

PULSE DUTY

CYCLE

RATIO=

25

50

75

%

Note 1. These clock, CP, and start pulse, SP, values are compatible with CMOS 74HCXX series

logic devices.

Note 2. FREQ is not only the clock frequency, but is also equal to the pixel sample rate. See not

2 under Table 6.1.

Note 3. TINT is the Line scan read time that depends on the interval between the start pulse

entries. See note 1 under Table 6.1. The longest integration time is determined by the

degree of leakage current degradation that can be tolerated by the system. A 10ms

maximum is a typical rule-of-thumb. An experienced CIS user can use his discretion and

determine the desired tolerance level for the given system.

Note 4. The definition for the symbols used in the RATIO is defined under the 7.2 Timing

Diagram.

7.2 TIMING DIAGRAM

PAGE 7 OF 22 - PI616MC-AS, 12/20/02