First, I would like to acquire two channels of TTL digital inputs. The pulse duration is about 200ns. The repetition rate of the pulses is less than 1MHz. The input acquistion is externally triggered.
At the same time, I want to generate 1 channels of special signal which will be synchronized with the two TTL inputs. This signal is a four level logic, just like -4V, -2V, 2V, 4V are representing data of 00, 01, 10, 11 respectively. The slew rate of the signals is about 400V/us. Each single datum's duration is N*50ns(N=0, 1, 2, ...). The data out is externally triggered.
I hope these requirements could be fulfilled by using one single daq board, and all the clock is externally referenced(by the GPS stable clock).
