AMIS-710616-AS: CIS PCB

Data Sheet

Product Specification

4.0 Physical Outline

Table 4-1: Physical Outline

Item

Specification

Note

Image sensors

AMIS-720639

See referenced image sensor data sheet

PCB stiffner board

PCB stiffner board size

≅355.6mm x 41.3mm x 6.35mm

Sensor PCB

Size

≈165.1mm x 21.4mm x 1.62mm

Two PCBs mounted on the stiffner

Data output

Eight analog video outputs

Sensor board connectors

Two I/O connectors

MOLEX 52610-1590

Used to connect to their respective output

amplifiers

Amplifier PCB board

Size

≈ 291.3mm x 76.2mm x 1.6mm

Amplifier board’s four connectors

Two inputs: MOLEX 52207-1950

Two outputs: ERNI-594083

Mounted are eight output amplifiers for each

of the video lines from the sensor boards

5.0 Recommended Operating Conditions (25

Table 5-1: Recommended Operating Conditions at 25

Item

Symbol

Min.

Typ.

Max.

Units

VDD

4.5

5.0

5.5

V

IDD

135

150

165

ma

VSS

|-5.0|

|-5.5|

V

Power supply

ISS

45

60

ma

Video output levels

Vpavg

(1)

3.0

V

Video saturation output

VSATA

(2)

5.5

V

Video line saturation output

VSATV

(2)

1.2

V

Input voltage at digital high (input clocks, SP and CP)

VIH

VDD-1.0

VDD-.5

VDD+0.3

V

Input voltage at digital low (input clocks SP and CP)

VIL

0

0.8

V

Clock frequency

Freq

(3)

5.0

6.0

MHz

Clock pulse high duty cycle

Duty

(4)

25

75

%

Clock high duration

TPW

(3)(5)

83.3

100

Ns, at 50 percent duty

Integration time

Tint

192

µs/line

160

µs/line

Typical, tested @ 5.0MHz clock

Minimum, tested @ 6.0MHz clock

Operating temperature

Top

(6)

25

50

Notes:

(1)

Vpavg is a symbol representing the average value of every pixel in the complete line scan. Vp(n) is the pixel amplitude of the nth pixel in a line scan. This

measurement is taken with the image array under a uniform light exposure. The typical output is specified with a uniform input light exposure of 0.5

blue Led light source.

(2)

Two saturated video output levels are specified. One is at the video signal’s output amplifier, VSATA, and the other is at the input of the amplifier. In almost all

applications, because the integration time is usually too short, there is not enough exposure time to saturate the array sensors. Accordingly, each output amplifier

is fixed with a gain of

≅ 4.5.

(3)

Freq is generally fixed for any application for the following reasons: One is the exposure time. With a given light power, the exposure time of the sensor can be

related to the clock frequency. The second is the shape of the video output pulse. Because the output video is in pulse charge packets, the signals are processed

on the output video line of the sensors. Hence, the signal shape depends greatly upon the amplifier configurations. Please refer to the referenced AMIS-720639

data sheet. It has some brief outline application notes. Under Note 6 on Page 6, there is a discussion about video pulse shapes. On Page 8, 9 and 10 there are

discussions on the three types of signal output stages.

(4)

Duty is the ratio of the clock’s pulse width over its pulse period. Because the video pixel output resets during the clock pulse’s high period and because the reset

requires a finite resetting time, it is recommended to operate the clock duty cycle within the following limits. See the referenced data sheet in Note 3, above.

Noting that the larger the duty, the less the signal amplitude, while too short of a clock pulse will not provide enough video reset time and leaves residual charges,

the recommended duty is 25 percent for frequencies less than 5MHz and 50 percent for frequencies greater than 5MHz.

(5)

Tint is determined by the time interval between two start pulses, (SP). Hence, if the SP is generated from a clock count down circuit, it will be directly proportional

to the clock frequency and it will be synchronous with the clock frequency. 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.

(6)

Top is a conservative engineering estimate. It is based on measurements of similar CIS modules and simple bench top tests, using heat guns and freeze sprays.

These will be re-measured during the pilot production under the standard QA practices that are under the control of ISO 9000.

2

AMI Semiconductor – July 06, M-20595-001

www.amis.com