CXA3621GE データシートの表示（PDF） - Sony Semiconductor

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CXA3621GE

Fingerprint Sensor

Sony Semiconductor 

CXA3621GE

Notes on Operation

Sensor surface electrostatic strength

Aerial discharge (150pF, 330Ω): ±12kV or more

Sony conducts tests using the 50% flash-over method∗ from the viewpoint of reproducibility and comparison of

performance. This method allows more stable measurement than the general method of approaching a

discharge gun (approach method). However the discharge distance tends to be longer than for the approach

method, so the above performances may not be satisfied if testing is performed by the approach method.

∗The discharge distance (distance between the probe tip and the test piece) is determined, and a trigger is

applied at fixed time intervals to raise the applied voltage and start discharge. The applied voltage when

discharge occurs at just 1/2 of the number of trigger times is the 50% flash-over voltage. The flash-over voltage

changes when the distance is changed, but it has been confirmed that there are no problems in terms of

sensor performance up to ±12kV.

Sensor surface strength

The sensor surface may be broken by the contact of the metal and others.

Therefore, be sure to pay the sufficient attention to handling this IC.

∗Never handle sensors with metal tweezers or similar tools on mounting lines, etc.

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