Analysis
FC300 OFDM IP Core Helps OEM Customers Reduce Development Time
Sundance Digital Signal Processing Inc., a leading provider of high performance signal processing and reconfigurable multiprocessor systems today introduced its latest FPGA IP core, code named FC300, which is a complete implementation of an OFDM physical layer, based on 802.11a/g/n.
The When used with the SMT911 RF module data may be transmitted at up to 54Mb/s on any standard 20MHz-wide channel in the 2.4GHz ISM or 5GHz U-NII bands. The core contains both transmit and receive chains and interfaces directly to other DSP or FPGA modules provided by the hardware platform. All 802.11a/g features are supported including data scrambling, forward error-correction via convolutional encoding at rates from ½ to ¾, sub-channel coding of BPSK, QPSK, 16QAM or 64QAM, both short- and long-training sequences, pilot insertion, and the IFFT/FFT required to convert to/from time-domain RF I/Q signals. The receiver logic includes estimators for center-frequency offset and fractional-sample symbol timing as well as independent per-sub-channel gain & phase compensation. The SMT911 supports 1x1 SISO and 2x2 MIMO on a single module.
The FC300 OFDM implementation was originally developed for a customer in China and is now available to all Sundance DSP customers. Mr. Fred Huettig, who headed the design efforts at Sundance DSP, said “this was a challenging and complex core to develop, test and release. We spent a considerable amount of time to implement all the features in a flexible yet efficient manner, so customers can save valuable time and gain an advantage over their competitors. At the end, we are pleased that customers will receive a fully working module with excellent performance, which may be used directly or as the basis of custom wireless solutions.”