1. We need one DAC for transmission, and one ADC for reception. These operations will need to be triggered, and they do not take place at the same time.
2. The waveform is created on-the-fly, based on physical sensor inputs. Therefore we will not be playing pre-recorded waveforms.
3. In the initial implementation, all we need is one DAC path, and one ADC path.
4. As long as the switching delay between transmit and receive operations is less than 2 seconds, that's tolerable.
5. If the DAC has some low-pass filtering, we need a frequency response at least up to 60 KHz.
6. A sampling rate of 240 KSPS or higher for DAC would be ideal, but we can make do with 192 KSPS. Same is true for the ADC.
Thank you very much.