16-Bit Sin/Cos Interpolator with Automatic Calibration

The iC-TW8 is a 16-bit application-specific DSP interpolator for sine/cosine signals with automatic signal adaption and error correction to maintain minimum angular error and jitter. Angular position is calculated at a programmable resolution of up to 65 536 increments per input cycle.
A 64-byte look-up table (LUT) is available additionally to correct for residual harmonic distortion in the sensor signals.

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Features

  • Input frequency of up to 125 kHz
  • Binary/decimal interpolation factors from x0.25 to x16 384
  • Post-AB divider [1/1 to 1/32] allows fractional resolution

Applications

  • Sine/cosine interpolation
  • Signal conditioning with auto calibration
  • Linear and rotary encoders


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