Four-Channel Wide-Band Programmable Digital Downconverter Evaluation Board


The ISL5416EVAL1 evaluation board is used to evaluate the ISL5416 wideband programmable digital downconverter (WPDC).

The ISL5416 four-channel wide-band programmable digital downconverter (WPDC) is designed for high dynamic range applications such as cellular basestations where the processing of multiple channels is required in a small physical space. The WPDC combines four channels in a single package, each including: an NCO, a digital mixer, digital filters, an AGC, and a resampling filter.

Key Features

  • Up to 95MSPS input
  • Four parallel 16-bit fixed or 17-bit floating point inputs
  • Programmable RF attenuator/VGA control
  • 32-bit programmable carrier NCO with >110dB SFDR
  • 20-bit internal data path
  • Filter functions
    • Multi-stage cascaded-integrator-comb (CIC) filter
    • Two programmable FIR filters (first up to 32 taps, second up to 64 taps)
    • Half-band interpolation filter
    • Resampling FIR filter
  • Overall decimation from 1 to >4096
  • Digital AGC with up to 96dB of gain range
  • Up to four independent 16-bit parallel outputs
  • Serial output option
  • 16-bit parallel µP interface
  • 1.8V core, 3.3V I/O operation
  • Evaluation board and configuration software available
  • Pb-free available


  • Basestation receivers: GSM/EDGE, CDMA2000, UMTS

Related Products


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