SMT901

The SMT901 is an advanced, high-quality MIMO transceiver card, designed to cover all features of future high-speed MIMO TDD radio systems. The SMT901 comprises two complete, fully configurable transceiver chains between two 2 x 10-bit digital I/Q interfaces and two dual-band 50 Ohm antenna ports. Each transceiver chain comprises RF-frontend (band switch / RX-TX switch and power amplifier), up-/down converters with on chip PLLs and high-performance analog-to-digital and digital-to-analog converters for the I/Q signals and auxiliary analog-to-digital converters for RSSI and TX power detection signals.

With a single externally supplied common reference clock for the transceiver PLLs multiple SMT901 cards are easily combined to build an arbitrary size 2m x 2n MIMO system with coherent LO phase.

All control signals and the SPI bus are routed through a 120-pin QSH data connector providing highest freedom for flexible, application specific configuration and control during operation. The SMT901 is designed to fit on and connect directly to an FPGA base module like the SMT700 or SMT351T.

 

Features

• Dual radio MIMO transceiver card for 2.4 - 2.5 GHz & 5.15 - 5.875 GHz bands
• Bandwidth configurable up to 40 MHz
• Direct conversion architecture
• 2 x 10-bit digital I/Q baseband interface
• 200 MSPS Digital-to-Analog converters
• 80 MSPS Analog-to-Digital converters
• Transceiver and RF front-end comply to IEEE 802.11a/b/g/n specifications with 64 QAM modulation
• Pout up to 18 dBm in 2.4 . 2.5 GHz
• Pout up to 15 dBm in 5.15 . 5.875 GHz
• Auxiliary ADCs for RSSI and TX power detection signals
• Stackable to build arbitrary order 2m x 2n MIMO systems
• Fully configurable
• All I/O signals completely buffered for highest noise immunity
• Complete separation of digital and analog supply circuits using low-noise LDOs
• 12 months warranty