LOW NOISE FREQUENCY CONVERTER
The FC-250-10P is a Low Noise Frequency Converter for Optical to RF Signals. This instrument can be used to generate low noise 10 MHz, 100 MHz and 1PPS signals that derive their phase noise and stability from an external 800-1650 nm pulsed optical signal with a repetition rate of 250 MHz. A high speed photodiode is used to convert the optical signal into RF and a proprietary synthesizer is used to generate 10 MHz, 100 MHz and 1 PPS outputs. This instrument is designed to operate with a 100 to 240 VAC, 47 to 63 Hz power source and is housed in a 2U, half rack enclosure.
- Features
- Specifications
- Options
- Low phase noise
- Outputs:
- 10 MHz signal with 12 +/- 2 dBm.
- 100 MHz signal with 7 +/- 2 dBm.
- 1 Pulse per Second TTL signal
- Unsynchronized signal = 8 ns long pulse width
- Synchronized signal = 512 us long pulse width
- Synchronization capabilities with external PPS.
|
PARAMETER |
CONDITIONS |
TYP |
UNITS |
|
10 MHz output level |
|
+13 |
dBm |
|
100 MHz output level |
|
+7 |
dBm |
|
Stability 10 MHz Output |
Pair Measurement |
1 e-14 |
- |
|
Temperature Stability |
@10 MHz, 20-50 °C @100MHz, 20-50 °C |
0.5 1 |
ps/K |
|
Residual Phase Noise 10 MHz Output |
1 Hz 10 Hz 100 Hz 1 kHz >10 kHz |
-142 -152 -162 -167 -169 |
dBc/Hz |
|
Frequency Stability 10 MHz Output |
1 10 100 1000 10000 |
2.8 E-14 3.6 E-15 5 E-16 1 E-16 4 E-17 |
|
|
Residual Phase Noise of the 100 MHz Output
|
1 Hz 10 Hz 100 Hz 1 kHz >10 kHz |
-127 -137 -147 -152 -155 |
dBc/Hz |
|
Frequency Stability 100 MHz Output |
1 10 100 1000 10000 |
5 E-15 1 E-15 5 E-16 7 E-17 1 E-17 |
|
|
Harmonic Distortion |
|
-35 |
dBc |
|
1 PPS output level |
50 ohm load |
3.9 |
V |
|
1 PPS Ext Sync Error |
|
< 5 |
ns |
FC080
FC160
FC200
FC250