Hello, We are planning on using an octoclock with several devices, including an N320. The octoclock outputs a 5V 1pps signal, but I'm confused about the N320 1pps input.
According to (https://kb.ettus.com/N320/N321): "PPS - Pulse Per Second Using a PPS signal for timestamp synchronization requires a square wave signal with the following a 5Vpp amplitude." If I look at the schematics for the N320, on page 15, (https://kb.ettus.com/images/f/f4/USRP_N3XX_MB_Schematic.pdf) they show that the input 1pps signal goes through an NC7SV157. Vcc for that is 3.3V in the schematics. According to the datasheet, the absolute maximum rating on the input is 4.3V. "https://www.onsemi.com/pdf/datasheet/nc7sv157-d.pdf"; So, I'm not sure how the N320 can safely accept a 5V input (from the octoclock or other device). Thanks, Jim
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