10-Bit Low Latency Sin / Cos Interpolator with Auto-Calib. and Line Driver

The iC-TW28 is a fast 10-bit interpolator for sine/cosine signals with automatic signal adaption and error correction to maintain minimum angular error and jitter.

Up to 1024 increments per input cycle can be configured for incremental ABZ output. Besides, iC-TW28 can provide UVW commutation signals, and angle and multi-cycle data for embedded applications using SPI.

Configuration is possible by pins, SPI or EncoderLink. Pushing a button triggers signal adaption and storage to the chip's EEPROM.

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Features

  • Differential PGA inputs for sine, cosine, and index
  • Input frequency of up to 700 kHz
  • AB output frequency of up to 12.5 MHz

Applications

  • Rotary and linear encoders
  • Magnetic or optical sin/cos sensor interface
  • Brushless motor commutation (2...64 poles)


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