CXA3271GE Datasheet, PDF (1/17 Pages) Sony Corporation – Fingerprint Sensor

Fingerprint Sensor
CXA3271GE
Description
The CXA3271GE is an electrostatic capacitance
method fingerprint sensor.
This monolithic IC integrates the sensor block, sense
amplifier (3-bit gain adjustment), sample-and-hold,
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.
30 pin LLGA
Features
• Electrostatic capacitance type sensor (charge transfer method)
• Number of pixels: 192 × 128
• 317 DPI
• Low power consumption (50mW or less)
• Single 3.3V power supply
• Sensor gain control: 3 bits
• S/N ratio improved by on-chip sensor block parasitic capacitance cancel function
Applications
Fingerprint verification units
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
• Supply voltage
• Input voltage
• Output voltage
• Operating temperature
• Storage temperature
• Allowable power dissipation
VDD
VI
VO
Topr
Tstg
PD
VSS – 0.5 to +7.0
V
VSS – 0.5 to VDD + 0.5 V
VSS – 0.5 to VDD + 0.5 V
–20 to +75
°C
–25 to +125
°C
970
mW
Operating Conditions
• Supply voltage
3.15 to 3.45
V
• Recommended operating temperature
0 to +50
°C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E00235-PS