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AMIS-710414-A4中文资料

1.0 General Description

The AMIS-710414-A4 (PI414MC-A4-R) is a contact image sensor (CIS) module, which uses MOS image sensor technology for high-speed performance and high sensitivity. The AMIS-710414-A4 is suitable for scanning A4 size (216mm) documents with 15.8 dots per millimeter (dpm) resolution. Applications include fax machines, game systems, a variety of mark readers, and other automation equipment requiring document scanners.

2.0 Key Features

? Light source, lens and sensor are integrated into a single module

? 15.8dpm resolution, 216mm scanning length

? Dual LED light source, RED and IR, with a line scan time to 180μsec @ 5MHz

? Wide dynamic range

? Analog output

? Compact size ? 14.0mm x 19.5mm x 232mm

? Low power

? Light weight

3.0 Functional Description

The AMIS-710414-A4 imaging array consists of 27 AMIS-720642 (PI3042) sensors, produced by AMI Semiconductor, which are cascaded to provide 3456 photo-detectors with their associated multiplex switches and a digital shift register, which controls its sequential readout. Mounted in the module is a one-to-one graded indexed micro lens array, which focuses on the image of the scanned documents then transfers it onto the sensors. The on-board amplifier processes the video signal to produce a sequential stream of video at the output pin of the AMIS-710414-A4 module. These 27 sensors bonded on a printed circuit board (PCB) are grouped into four sub-cascaded sections. Each contiguously cascaded chip section is connected on separate video lines, accordingly providing four video outputs, VOUT1, VOUT2, VOUT3, and VOUT4. Before the signal charges from the four video lines appear at their respective outputs, they are converted to signal voltages by four on-board buffer amplifiers; one for each of its corresponding video sections. The first three sections, VOUT1, VOUT2 and VOUT3 have seven sensor chips, while the VOUT4 has six sensor chips. Since each sensor chip has 128 pixels, there are a total of 3456 pixels (see Figure 1).

Illumination is accomplished by means of integrated LED sources; Red (65nm) and IR (880nm). All components are housed in a small plastic housing, which has a cover glass that acts as the focal point for the object being scanned. In addition, it protects the imaging array, micro lens assembly and LED light source from dust. Inputs and outputs (I/O) to and from the module are facilitated by a 12-pin connector, EBW-PK23-P012L2-3Z, located on one end of the module. For the location of Pin 1, see Figure 4.

The cross section of the AMIS-710414-A4 module is shown in Figure 1 and a block diagram in Figure 2.

4.0 Connector Pin Out Designation

The part number for the connector is EBW-PK23-P012L2-3Z.

Table 1: Pin-out Configuration

Pin Number Symbol Names and Functions

1 VOUT1 Analog video output 1

2 VOUT2 Analog video output 2

0V

3 GND

Ground;

4 VOUT 3 Analog video output 3

5 VOUT 4 Analog video output 4

6 Vdd (+5V) Positive power supply

7 SP (START) Shift register start pulse

8 GLED IR Ground for IR light source; 0V

9 CP (CLOCK) Sampling clock pulse

10 Vn (-5V to -12V) Negative power supply

11 GLED RED Ground for the RED light source; 0V

12 VLED Supply for the light source

5.0 Maximum Ratings

Table 2: Maximum Rating

Parameter Symbols Maximum Rating Units

Vdd 7 V

Power supply voltage

mA

Idd 100

Vn -15 V

In 35

mA

VLED IR 5.5 V

VLED RED 5.5 V

ILED IR 650 mA

ILED RED 500 mA

Input clock pulse (high level) Vih Vdd V

Input clock pulse (low level) Vil -0.5 V

Note: These are the maximum ratings and are not to be used in a prolonged condition.

6.0 Operating Environment

Table 3: Operating Environment

Parameter Symbol Range Units

Operating temperature Top 0 to +50 °C

Operating humidity Hop +10 to +85 %

Storage temperature Tstg -25 to +75 °C

Storage humidity Hstg +5 to +95 %

7.0 Electro-Optical Characteristics

The tabled values are measured at 25°C.

Table 4: Electro-Optical Characteristics

Parameter Symbol Typ. Units Note

Total number of photo detectors 3456 Elements

896 Elements

Section 1, 2 & 3 number of photo

detectors

Section 4 number of detectors 768 Elements

Pixel-to-pixel spacing 63.5 μm

Line scanning rate (1)Tint180 μsec @ 5.0MHz clock frequency

Clock frequency (2)fclk 5.0 MHz

+/-0.15 V

Bright output voltage (3)Vpavg 1.1

Bright output non-uniformity (4)Up +/-30 %

Adjacent pixel non-uniformity (5)Uadj <25 %

Dark non-uniformity (6)Ud <150 mV

Dark output voltage (6)Vd <600

mV

Modulation transfer function (7)MTF >40 % MTF for Red LED

Modulation transfer function (7)MTF >30 % MTF for IR LED

Notes:

(1) Tint is the line scanning rate or integration time. Tint is determined by the interval of two start pulses (SP). The integration time of 180μsec is set at the factory. For

additional comments, see Note 1 under Table 5.

(2) fclk: main clock frequency

(3) Vpavg = ∑ Vp(n)/3456

(4) Up = [(Vpmax - Vpavg) / Vpavg] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100%, where Vpmax = maximum pixel amplitude in the line scan and Vpmin = minimum

pixel amplitude in the line scan.

(5) Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)) x 100%

Upadj is the non-uniformity in percent between adjacent pixels, where Vp(n) is the n th pixel in the line scan.

(6) Ud = Vdmax – Vdmin

Vd = the average dark output level

Vdmin is the minimum output on a black document (LED is turned off).

Vdmax: is the maximum output voltage on a black document (LED is turned off).

(7) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]

Vmax: is the maximum output voltage at 100lp/in (200dpi target) and Vmin: is the minimum output voltage at 100lp/in (200dpi target), where lp / in is the line pairs per inch.

8.0 Recommended Operating Conditions

The tabled values are measured at 25°C.

Table 5: Recommended Operating Conditions

Item Symbol Min. Mean Max. Units

Power supply

Vdd 4.5 5.0 5.5 V

Vn. -13 -5.0 -4.0

VLED IR 5 5.5 V

VLED Red 5 5.5 V

ILED IR 500 650 ma

ILED Red 350 500 ma

Idd 90 95 ma

Ivn 4.0 5.0 5.5 ma

Input voltage at digital high Vih Vdd-1.0 Vdd-0.5 Vdd V

Input voltage at digital low Vil 0.6 V

Clock frequency Fclk 5.0 5.5MHz

Clock pulse high duty cycle 25 %

Clock pulse high duration 50 ns

Integration time Tint 180 μs Operating temperature Top 25 50 °C

9.0 Switching Characteristics (25°C)

The switching characteristics (at 25°C) for the I/O clocks are shown in Figure 4. For the timing symbol definitions, see Table 6.

VOUT4. Section 4 has only six sensor chips, hence its active scan is shorter by 128 pixels.

Table 6: Timing Symbol Definitions for Figure 3 Timing Diagram

Parameters Symbol Min. Typ. Max. Units

Clock cycle time to 0.20 4.0

μs

Clock pulse width tw 50 ns

Clock duty cycle 25 75 %

Prohibit crossing time of SP tprh 0 ns

Data setup time tds 20 ns

Data hold time tdh 0 ns

Signal delay time tdl 20 ns

Signal settling time tsh 100 ns

Note:

(1) "Prohibit crossing of start pulse" is to indicate that the start pulse should not be active high between any two consecutive high going clock pulse or two consecutive

low going clock pulses (see Figure 3). Only one high going clock under the active high start pulse initiates the internal shift register and it must not be active over two high going clocks. All low going clock pulses will not initiate the shift register. To ensure that the start pulse will not be actively high during two consecutive high going clocks, the circuit should be designed to keep the start pulse active only for one high going clock cycle.

10.0 AMIS-710414-A4 Module Mechanical Dimensions This is an overview drawing of the module.

11.0 Company or Product Inquiries

For more information about AMI Semiconductor, our technology and our product, visit our Web site at: https://www.sodocs.net/doc/6211491056.html, North America

Tel: +1.208.233.4690

Fax: +1.208.234.6795

Europe

Tel: +32 (0) 55.33.22.11

Fax: +32 (0) 55.31.81.12

Production Technical Data - The information contained in this document applies to a product in production. AMI Semiconductor and its subsidiaries (“AMIS”) have made every effort to ensure that the information is accurate and reliable. However, the characteristics and specifications of the product are subject to change without notice and the information is provided “AS IS” without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify that data being relied on is the most current and complete. AMIS reserves the right to discontinue production and change specifications and prices at any time and without notice. Products sold by AMIS are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. AMIS makes no other warranty, express or implied, and disclaims the warranties of noninfringement, merchantability, or fitness for a particular purpose. AMI Semiconductor's products are intended for use in ordinary commercial applications. These products are not designed, authorized, or warranted to be suitable for use in life-support systems or other critical applications where malfunction may cause personal injury. Inclusion of AMIS products in such applications is understood to be fully at the customer’s risk. Applications requiring extended temperature range, operation in unusual environmental conditions, or high reliability, such as military or medical life-support, are specifically not recommended without additional processing by AMIS for such applications. Copyright ? 2006 AMI Semiconductor, Inc.

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