Zmod SDR: SYZYGY-compatible Analog-to-Digital Converter Module for Software-Defined Radio

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The Digilent Zmod SDR is a digitizer designed for software-defined radio and RF applications. It is a SYZYGY™-compatible pod containing a dual-channel ADC and the associated front end. The Zmod SDR is intended to be used with any SYZYGY™ compatible carrier board. It features a wide input bandwidth, allowing for under-sampling applications - capturing signals with frequencies much higher than the baseline 122.88 MS/s sample rate's associated Nyquist frequency. An on-board low-jitter clock generator and low-noise design provide the precision necessary to capture fast radio signals. When paired with an Eclypse Z7 host board, the Zmod is supported in GNU Radio, providing a convenient and familiar interface for SDR experts and researchers.

Guides and demos are available to help you get started quickly with the Zmod SDR. These can be found through the Support Materials tab.

  • Channels: 2
  • Channel Type: Single-ended
  • Resolution: 14-bit
  • Input Range: ±1 V 
  • Absolute Resolution: 61 μV
  • Sample Rate: 122.88 MS/s, max
  • Input Impedance: 50 Ω @ 10 MHz
  • Analog Bandwidth: 35 kHz - 470 MHz @ -12 dB, 100 kHZ - 200 MHz @ -3 dB
  • Reference Clock: Onboard or from SYZYGY host board
  • Product Compliance:
    • HTC: 8473301180
    • ECCN: EAR99
  • Zmod SDR
  • Screws for securing the Zmod to compatible host board (4 M3x5mm)
  • Digilent custom packaging with protective foam

The Zmod SDR is supported by GNU Radio and Digilent's WaveForms software suite when paired with a Eclypse Z7 baseboard.

For custom user-designed applications using 7-series FPGA boards like the Eclypse Z7 and USB104 A7, Digilent provides an IP core for Vivado that automatically handles configuration and bringup of the Zmod and forwards acquired data to the rest of the user's design through an AXI stream interface.

Visit the Support Materials tab to access more information.

All product support including documentation, projects, and the Digilent Forum can be accessed through the product resource center.