PI310MC-DR AMI | Alldatasheet

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Technical content

PAGE 1 of 10 PI310MC-DR Description, 7/30/99 Key Features

  • Light source, lens, and sensor are integrated into a single module
  • 11.8 dpm resolution, 89 mm scanning length
  • Up to 423 µsec/line scanning speed, with 2.5 MHz pixel rate (See Table 3, Note 3.)
  • Wide dynamic range
  • Two-Level Tracking Digital Output (“Dynamic Threshold Digitizer”)
  • Standard Yellow-Green light source (Other colors are available)
  • Compact size = 15 mm x 25.6 mm x 102 mm
  • Low power
  • Light weight General Description The PI310MC-DR is a contact image sensor, CIS, module with an additional on board circuit that digitizes the analog pixels from the CIS image sensor to a “background- tracking”, two-level digital output signal. It is based on the PI305M-A6 CIS module manufactured by PIC, but with a shorter read length of 89 mm. Hence, its performance is equivalent to the PI305M-A6 that uses MOS image sensor technology to gains its high- speed performance and high sensitivity. The PI310MC-DR is suitable for scanning documents with widths up to 89 mm and with resolution of 11.8 dots per millimeter. It has broad applications, but was specially designed for the following areas:
  • Where data compression is required, such as in data transmissions. PI310MC-DR 300DPI CIS Two Level Digital Output Module Engineering Data Sheet
  • Where component pin-out count must be kept to a minimum. Peripheral Imaging Corporation

referred to as the “tracking digitizer”. from the module. See Figure 1, the block diagram of the PI310MC-DR module. from dust. The pictorial of PI310MC-DR cross section is shown in Figure 2. Figure 1. PI310MC-DR Module Block Diagram.

The table of pins and their functions are listed in Table I, Pin Configuration.

1 DIGOUT

2 Vdd (+5 V)

3 Vn (-10 to -5V)

5 GRD

6 CLOCK

7 GLED

8 VLED

Table 1. Pin configuration The connector is a 8-pin 1-mm surface mount flex input, Molex 52207-0890.

  • Clock is on Pin 6 of the I/O Connector. This is main clock input into the CIS Module.
  • SP is on Pin 4. This is the start clock input to the CIS Module.
  • VDD is on Pin 2. This is a + 5 Volts supply. Peripheral imaging Corporation
  • VN is on Pin 3. This is a (– 10 to -5) Volts supply.
  • VLED is on Pin 8. This is a +24 Volts supply for the LED light source. Note: Power return for the LED light source is GLED on Pin 7 and the ground return for the CIS modules is pin 5. Video Output DIGOUT is on pin 1 of the I/O connector. This is the digital video output from the CIS module. Reflection off the dark target produces a digital signal of “0” level, while the white reflection off the white target produces a digital level of “one”. The amplitudes of the white and dark are listed in the table below: Electro-Optical Characteristics (25° C)

Table 2. Electro-optical characteristics at 25° C. Table 3. Recommended Operating Conditions (25 °C)

(1) VLED sources are also available in 5 Volts. (2) Clock pulse high is specified at 2.5 MHz at 25% duty. hence the time constant will determine the optimum integration time. for the specific application. Diagram. The timing parametric values and their symbols are given in the Table 4. Table 3. (Continued) FIGURE 4. Module Timing Diagram

Table 4. Switching Parameter and Timing Symbol Definition

Peripheral imaging Corporation Page 9 of 10 PI310MC-DR Description, 7/30/99 Offset adjust, R18, is a screw driver adjustment potentiometer that is accessed through adjustment hole as viewed in figure 5. Gain adjust, R16, is a screw driver adjustment potentiometer that is accessed through the hole as it is viewed in figure 5. There are only two adjustments: These adjustments will be pre-set to the customer’s specific application at the factory, therefore, in general will not require trimming by the user. Test point TV is probed with a scope to monitor the analog image pixel levels. The probe should be grounded as close to the CIS module as possible. If possibly right on the ground input lead, pin 5, of the I/O connector. Analog Zero signal adjust (OFFSET ADJ) as it is shown in Figure 5. This pot is adjusted to place the dark level of the analog image pixel signal to approximately – 0.9 to – 0.7 Volts. Normally adjusted with intended targets. Analog Gain adjust, “GAIN”, is adjusted greater than 2.0 and less then 3.5 Volts with the CIS imaged on a standard white target similar to the standard white copy or typing paper.