TDC1000-C2000EVM: Application and range

Hi Team,

Our customer is trying to find an ultrasonic pulser and receiver for their transducers (~3 MHz) and found TDC1000-C2000EVM that has similar functions.

This question arises:
1) They saw the example case is a 1 MHz ultrasonic in water, wondering if they could use it in their case (~3 MHz in mineral oil) since they noticed that the band of the chip is actually around 8 MHz;
2) Can they use this board as something like a pulser and receiver switch or do you have any products for a recommendation. What they want to achieve is first using ultrasonic transducer to transmitting a pulse cycle for maybe 5 cycles (~1.7 us) and then change to receiving mode for ~50 us and then repeat this process. 

Please let me know if you have any questions to the customer.

Thanks,

Jonathan