CXA3621GE Datasheet, PDF (1/14 Pages) Sony Corporation – Fingerprint Sensor

Fingerprint Sensor
CXA3621GE
Description
The CXA3621GE 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 (Plastic)
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
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
AVDD, DVDD VSS – 0.5 to +7.0
V
• Input voltage
VI
VSS – 0.5 to VDD + 0.5 V
• Output voltage
VO
VSS – 0.5 to VDD + 0.5 V
• Operating temperature
Topr
–20 to +75
°C
• Storage temperature
Tstg
–25 to +125
°C
• Allowable power dissipation
PD
1100
mW
Recommended Operating Conditions
• Supply voltage
AVDD, DVDD
2.7 to 3.6
V
• Ambient operating temperature Ta
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.
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E02127-PS