Audited Supplier
Eight XTRX Boards, Synchronized & Multiplexed
If you're working on a massive MIMO system or have a large swath of spectrum you need to monitor, XYNC (pronounced iks-sync) is right for you. XYNC builds on the success of the Octopack SDR we offered during the XTRX campaign and takes into account feedback from the original Octopack users.
Synchronized and Multiplexed XTRXs
A single XYNC comes equipped with four or eight removable XTRX boards, metal installation brackets, cables for all of the TX/RX ports and the GPS port, and a special board for synchronizing the XTRX units. Each onboard XTRX provides two transmit channels and two receive channels. Thus, XYNC (with eight XTRX units) has 16 transmit and 16 receive channels. Two XYNC Octos can be synchronized and will give you 32 transmit and 32 receive channels.
On the digital side, each XTRX unit is connected to a PCIe switch that multiplexes the XTRX PCIe lanes into a single PCIe 2.0 x4 connector. This makes it very compact and easy to install into a standard PC. Just don't forget to provide enough air flow for cooling, as setups like this can get quite hot.
Features & Specifications
RF Chipset: 8x Lime Microsystems LMS7002M FPRF
FPGA: 8x Xilinx Artix 7 50T
Channels: 16×16 MIMO
Sample Rate: ~0.2 MSPS to 120 MSPS per channel (subject to the limitations explained above)
PCIe Throughput: PCIe x4 Gen 2.0, 16 Gb/s
RF Amplifier: Qorvo QPL9503SR
RF Output Power: 0 to 10 dBm depending on frequency
RF Bandwidth: 1.4 MHz to 130 MHz
Tuning Range: 30 MHz - 3.8 GHz
- RX/TX Range:
10 MHz - 3.7 GHz
100 kHz - 3.8 GHz with signal level degradation
- Reference Clock:
Stability w/o GPS: 100 ppb from 0°C to 70°C
Stability w/GPS: <10 ppb stability after GPS/GNSS lock
Form Factor: full-size PCIe
Bus Latency: <10 µs, stable over time
Synchronization: synchronize two XYNC boards directly or more than two XYNC boards with an external clock distribution network
RF Bandwidth
XYNC is based on multiple synchronized XTRX SDRs, so the maximum achievable RF bandwidth is a function of the individual XTRX RF bandwidths.
If you want to tune XYNC channels to receive or transmit at different parts of the spectrum, please keep two things in mind:
XTRX RF filters are not ideal and have natural roll-off towards the edge, so you might need to overlap the XTRXs' receive/transmit to achieve a contiguous spectrum within which to receive or transmit.
Each XTRX has only one receive and one transmit PLL, so both RX channels are "locked" to one other, as are both TX channels. This means that a single XYNC board only provides up to eight independent RX channels and eight independent TX channels.
XYNC Simplified Block Diagram
