Question
The only information for the 10 MHz Reference Input in the Specifications of the FPC series is about the lowest required level and the impedance.
Reference Input Information FPC1x00
| Connector | BNC, 50 Ω | |
| Mode | ext. reference, ext. trigger | |
| External reference | required level | 0 dBm |
| frequency | 10 MHz |
Can you please provide information about the required waveform and the maximal valid input power?
Answer
The shape of the waveform is not decisive at this point. Among other things we have connected a filter with a subsequent TTL gate in the input. Accordingly, the level only has to be high enough and may not exceed 3V pp, which corresponds to around 13 dBm.
