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iC-PT3325 oQFN32-5x5-1
iC-PT3325 oQFN32-5x5-1

会员价:¥5204.90  (每管(每管73片))

市场价:¥5204.90

优惠:0.0%

商品编号:
161230115965
品牌:
iC-Haus

购买数量:
  件 (库存101件)

iC-PT 3325 is an optical sensor IC with integrated
photosensors whose signals are converted into voltages
by low-noise transimpedance amplifiers. Precise
voltage comparators with hysteresis are used to
generate the digital signals, supplied to the output
pins via differential +/- 4mA push-pull drivers.
The built-in LED power control with its 40mA driver
stage permits a direct connection of the encoder
LED. Regardless of aging or changes in temperature
the received optical power is kept constant.
Selection input SEL chooses for three different operating
modes: regular A/B operation, A/B operation
with 2-fold interpolation, or analog operation. With
analog operation the amplified signal voltages are
available at the outputs for inspection and monitoring
encoder assembly.
  Typical applications of iC-PT devices are incremental
encoders for motor feedback and commutation. To
this end, device version iC-PT 3325 provides differential
A/B tracks and a differential index track, each
consisting of multiple photo sensors. The layout of
the signal amplifiers is such that there is an excellent
paired channel matching, eliminating the needs for
signal calibration.
Additionally, three more tracks are provided to generate
motor commutation information for the U, V and
W outputs, for instance with 90 degree phase shift to
operate 4-phase brushless motors. The period count
and phase shift can be varied by the code disc applied



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