The ISL5416 four-channel wideband 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. All channels are independently programmable and may be updated in real time. Each of the four channels can select any of the four digital input buses. Each of the tuners can process a W-CDMA channel. Channels may be cascaded or polyphased for increased bandwidth. Selectable outputs include I samples, Q samples and AGC gain. Outputs from the part are available over the parallel, serial or microprocessor interfaces.


  • 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 microprocessor interface
  • 1.8V core, 3.3V I/O operation
  • Evaluation board and configuration software available
  • Pb-free available


  • Basestation receivers: GSM/EDGE, CDMA2000, UMTS

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active FBGA Tray 90
Active FBGA Tray 90

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL5416 Datasheet Datasheet PDF 3.24 MB
Application Notes & White Papers
AN1014: CDMA2000 and W-CDMA on the ISL5416 Quad Programmable Down Converter Application Note PDF 493 KB
AN1016: Automatic Gain Control (AGC) in ISL5416 3G QPDC Application Note PDF 1.30 MB
AN1017: A/D Range Control Using the ISL5416 3G QPDC Application Note PDF 2.07 MB
HSP50216, ISL5216, ISL5416 USB Interface Software Library ZIP 11.09 MB

Boards & Kits

Part Number Title Type Company
ISL5416EVAL1 Four-Channel Wide-Band Programmable Digital Downconverter Evaluation Board Evaluation Renesas