ZHCSLH4 April 2021 AMC3336
PRODUCTION DATA
For modulator output bitstream filtering, a device from TI's C2000? or Sitara? microcontroller families is recommended. These families support up to eight channels of dedicated hardwired filter structures that significantly simplify system level design by offering two filtering paths per channel: one providing high-accuracy results for the control loop and one fast-response path for overcurrent detection.
A delta-sigma modulator filter calculator is available for download at www.ti.com that aids in the filter design and selecting the right OSR and filter-order to achieve the desired output resolution and filter response time.