描述 Description

The CXA3621GE is an electrostatic capacitance method fingerprint sensor.

This monolithic IC integrates the sensor block, sense amplifier (3-bit gain adjustment), sample-andhold, output amplifier and output buffer needed to acquire fingerprint images, as well as the timing generator for determining the operation of these functions onto a single chip.

特性 Features

? Electrostatic capacitance type sensor (charge transfer method)

? Number of pixels: 192 × 128

? 317 DPI

? Low power consumption (50mW or less) ? When P/S: 18μW or less

? Single 3.0V power supply

? Sensor gain control: 3 bits

? S/N ratio improved by on-chip sensor block parasitic capacitance cancel function

Applications

Fingerprint verification units