KoheiMitsuhashi - 22:15, Saturday 24 September 2022 (3069)
RF driver test
I checked the RF driver(1080AF-AEN0-2.5) working in atc.
Tuning Voltage was fixed 10V, and Analog input was set from 0.1V to 1.0V.
I recorded voltage and frequency of AO Modulator, and also recorded voltage and ampere of Power Supply.
Before recording it , I ran electricity only from Power Supply for 5 minute to warm up the RF driver.
And I used a 20dB/50OHM attenuator(Mini-Circuits model CAT-20) to prevent the oscilloscope from saturating.
The result about Analog input and AO Modulator was as follows.
|
Analog input [mV] |
AO Modulator voltage[mV] |
AO Modulator frequency[MHz] |
| 100 | 93±1 | 81.46±0.24 |
| 200 | 190±3 | 81.20±0.66 |
| 300 | 285±2 | 81.13±0.22 |
| 400 | 385±5 | 81.00±0.27 |
| 500 | 478±6 | 81.15±0.23 |
| 600 | 567±9 | 81.09±0.13 |
| 700 | 665±3 | 80.89±0.22 |
| 800 | 759±6 | 80.97±0.14 |
| 900 | 852±3 | 81.10±0.19 |
| 1000 | 938±11 | 81.08±0.32 |
I graphed and fitted linearly with respect to voltage of the AO Modulator and voltage of the Analog input.
The figure was attached. The width of error bars is 1σ.
The result about Analog input and Power Supply was as follows.
|
Analog input [mV] |
Power Supply voltage[mV] |
Power Supply ampere[A] |
| 100 | 2804±5 | 0.659±0.002 |
| 200 | 2804±5 | 0.654±0.001 |
| 300 | 2808±4 | 0.649±0.001 |
| 400 | 2808±5 | 0.645±0.005 |
| 500 | 2804±5 | 0.638±0.001 |
| 600 | 2812±7 | 0.634±0.001 |
| 700 | 2808±7 | 0.629±0.001 |
| 800 | 2808±7 | 0.627±0.001 |
| 900 | 2808±7 | 0.624±0.001 |
| 1000 | 2808±7 | 0.625±0.001 |
Images attached to this report
