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- Product Code: MGSL10282
LimeSDR Mini 2.0 is an upgraded, drop-in replacement for LimeSDR Mini, a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs that use an FPGA coupled with Lime Microsystems’ LMS7002M RF transceiver.
Goodbye, LimeSDR and LimeSDR Mini
Since we first introduced LimeSDR over six years ago, and LimeSDR Mini about a year later, we’ve shipped tens of thousands of units to engineers around the world for use in everything from satellite ground stations to digital television. Whether you’re a hobbyist using LimeSDR or LimeSDR Mini to learn about software defined radio, or a company integrating hundreds of units into your commercial product, we’ve been thrilled at the breadth and depth of LimeSDR Mini applications you’ve come up with. Which is why it’s been especially difficult to watch all of this come to a grinding halt over the last year due to the global electronics and chip shortage.
Hello, LimeSDR Mini 2.0
Rather than wait indefinitely and hope the supply chain rewinds to a time we’re unlikely to see again soon, we went back to the drawing board. The result is LimeSDR Mini 2.0, a software defined radio with the same form factor as the original LimeSDR Mini, the same LMS7002 RF transceiver, but a new FPGA - the Lattice ECP5. Not only is the ECP5 more readily available than the Intel MAX10 FPGA used in the previous design, but it has an extensive set of open source tools and a great community of developers.
Block Diagram
Comparisons
LimeSDR Mini 2.0 | LimeSDR Mini | LimeSDR | HackRF One | Ettus B200 | Ettus B210 | BladeRF x40 | RTL-SDR | |
---|---|---|---|---|---|---|---|---|
RF Transceiver | LMS7002M | LMS7002M | LMS7002M | MAX5864, MAX2837, RFFC5072 | AD9364 | AD9361 | LMS6002M | RTL2832U |
Frequency Range | 10 MHz - 3.5 GHz | 10 MHz - 3.5 GHz | 100 kHz - 3.8 GHz | 1 MHz - 6 GHz | 70 MHz - 6 GHz | 70 MHz - 6 GHz | 300 MHz - 3.8 GHz | 22 MHz - 2.2 GHz |
RF Bandwidth | 40 MHz | 40 MHz | 61.44 MHz | 20 MHz | 61.44 MHz | 61.44 MHz | 40 MHz | 3.2 MHz |
Sample Depth | 12 bits | 12 bits | 12 bits | 8 bits | 12 bits | 12 bits | 12 bits | 8 bits |
Sample Rate | 30.72 MSPS | 30.72 MSPS | 61.44 MSPS | 20 MSPS | 61.44 MSPS | 61.44 MSPS | 40 MSPS | 3.2 MSPS |
TX Channels | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 0 |
RX Channels | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 1 |
Duplex | Full | Full | Full | Half | Full | Full | Full | N/A |
Programmable Logic | Lattice ECP5 | Intel MAX 10 | Intel Cyclone IV | Xilinx CoolRunner-II | Xilinx Spartan-6 | Xilinx Spartan-6 | Intel Cyclone IV | N/A |
Logic Gates | 44K | 16K | 40k | 64 macrocell CPLD | 75k | 100k | 40k (115k avail) | N/A |
Interface | USB 3.0 | USB 3.0 | USB 3.0 | USB 2.0 | USB 3.0 | USB 3.0 | USB 3.0 | USB 2.0 |
Open Source | Full | Full | Full | Full | Schematic, Firmware | Schematic, Firmware | Schematic, Firmware | No |
Oscillator Precision | ±1 ppm initial, ±4 ppm stable | ±1 ppm initial, ±4 ppm stable | ±1 ppm initial, ±4 ppm stable | ±20 ppm | ±2 ppm | ±2 ppm | ±1 ppm | ? |
Transmit Power | max 10 dBm (depending on freq.) | max 10 dBm (depending on freq.) | max 10 dBm (depending on freq.) | -10 dBm+ (15 dBm @ 2.4 GHz) | 10 dBm+ | 10 dBm+ | 6 dBm | N/A |
Support & Documentation
We pride ourselves on the openness of LimeSDR Mini 2.0. You can find our files and documentation below:
Lime Applications
The SDR community has has used Lime products for a wide range of applications, such as:
- Amateur digital TV broadcast
- Satellite ground station
- Streaming FM to the Internet
- OreSat, Oregon's first satellite
- Spectrum-scanning jammer and controller for drones
- Bit pattern generator aligned with the SDR data stream
- Digital audio broadcast
Since LimeSDR Mini 2.0 has an FPGA with even more logic gates than its predecessors, we expect the number and types of applications to increase accordingly. We’ll share some examples as the campaign progresses.
Compatibility
LimeSDR Mini 2.0 is compatible with the same acrylic enclosure and antennas as the original LimeSDR Mini. Note that the third-party Lime AC Mini Case is not compatible with LimeSDR Mini 2.0 since the heights of some of the ICs on LimeSDR Mini 2.0 is slightly different than those on LimeSDR Mini, which causes the case not to close completely.