2700 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR

The µPD3720A is a color CCD (Charge Coupled Device) linear image sensor which changes optical images to electrical signal and has the function of color separation.

The µPD3720A has 3 rows of 2700 pixels and 3 pairs of 2 rows of 1350-bit charge transferred registers, reset feedthrough level clamp circuits, clamp pulse generation circuit and voltage amplifiers. It is suitable for color image scanners, color facsimiles and so on.

FEATURES

• Valid photocell : 2700 pixels × 3

• Photocells pitch : 10.5 µm

• Line spacing : 42 µm (4 lines) Red line-Green line, Green line-Blue line

• Color filter : Primary colors (red, green and blue), pigment filter (with light resistance 107 lx•hour)

• Resolution : 12 dot/mm A4 (210 × 297 mm) size (shorter side)

300 dpi US letter (8.5” × 11”) size (shorter side)

• Drive clock level : CMOS output under 5 V operation

• Data rate : 3 MHz MAX.

• Power supply : +12 V

• On-chip circuits : Reset feed-through level clamp circuits

Clamp pulse generation circuit

Voltage amplifiers

• Pin assign : Compatible with the µPD3720