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README.md

README.md

LimeSDR-QPCIe

LimeSDR-Mini board

The LimeSDR-QPCIe board provides a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs using Intel’s Cyclone V FPGA and Lime Microsystems transceivers.

  • FPGA Features

    • Cyclone V, 5CGXFC7D7F31C8N device in 896-pin FBGA package
    • 150’000 logic elements
    • 6860 Kbits embedded memory
    • 312 embedded 18x18 multipliers
    • 7 PLLs
    • 9 Transceivers (2.5Gbps)
    • PCIe Hard IP Blocks
    • 2 Hard Memory Controllers
  • RF

    • 2x LMS7002M, FPRF transceivers
    • Onboard RSSI measurement circuits
    • Onboard loopback control switches
  • DACs and ADCs

    • 2x DAC5672A, dual, 14-bit, Digital-To-Analog converters
    • 1x ADS424, Dual-Channel, 14-bit, Analog-To-Digital converter
  • Memory Devices

    • 4 x 2Gbit DDR3 SDRAM (128M x 16)
    • 4Mbit flash for FX3 firmware
    • 128Mbit flash for FPGA gateware
    • 2 x 128Kbit and 2 x 512Kbit EEPROMs for LMS MCU firmware, LMS MCU data
    • 1 x 128K EEPROM for FX3 or FPGA data
  • Connections

    • microUSB3.0 (type B) connector
    • PCIe edge connector
    • Coaxial RF (U.FL) connectors
    • 2x PMOD header (0.1” pitch)
    • FPGA (0.1” pitch) and FX3 (0.05” pitch) JTAG connectors
    • 12V DC power jack and pinheader
    • LVDS connector (0.05” pitch)
    • Fan connector (12V/5V)
    • PCIe 6-pin power connector
    • Holder for coin cell CR1220 battery
  • Clock System

    • 30.72MHz VCTCXO (precision: ±1 ppm initial, ±4 ppm stable).
    • Possibility to lock VCTCXO to external clock using ADF4002 or tune VCTCXO by onboard DAC (AD5662)
    • Programmable clock generator for the FPGA reference clock input or LMS PLLs
    • VCTCXO clock output for external device synchronization.
    • 1x 100 MHz, 4 x 125MHz crystal oscillators for FPGA
  • Miscellaneous devices

    • LM75 Digital temperature sensor with 2-Wire Interface.
    • DS3231 real-time clock.
    • M0578-A3 GPS/GNSS module receiver
  • Board Size 190mm x 106.7mm (7.48” x 4.20”)

Contents

The directory structure is as follows:

  hardware/<version>/
      Libraries/             - Component Libraries
      OutputJobs/            - Output jobs
      PCB/                   - PCB design
      Project Outputs/       - BOM, rule check reports, Gerbers, pick & place files, PDFs
      Schematics/            - Schematic diagrams

Licensing

The hardware designs are licensed under a Creative Commons Attribution 3.0 Unported licence.

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