I need to build a prototype for a radio receiver algorithm. Is there a SDK with A/D and D/A that I can use? Or maybe use a separate A/D and D/A evaluation board. The SDK needs to interface to a transceiver, 1 channel, I/Q lines in and out. Can also be receiver and transmitter on separate SDKs. Sampling rate, max 8 ms/s. Memory: 22 MB RAM. The DSP is quite complex, maybe like 64 point complex FFT every 250 ns.