Active Components
Oscillators
Drawcom series of fundamental frequency phase locked oscillators utilise coaxial resonators (CRO) to 3.4 GHz and dielectric resonators (DRO) to 14 GHz in a phase locked loop with an internal crystal reference.
Specifications
| Phase Noise (dBc/Hz) typical See Note 1 | ||||||
| Offset (Hz) | Output Frequency (GHz) | |||||
| 0.6 | 1.5 | 3 | 4 | 10 | 14 | |
| 100 | -80 | -73 | -66 | -64 | -56 | -53 |
| 1K | -115 | -105 | -100 | -95 | -90 | -85 |
| 10K | -130 | -125 | -115 | -110 | -100 | -95 |
| 100K | -135 | -125 | -115 | -115 | -110 | -105 |
| 1M | -140 | -140 | -135 | -135 | -120 | -115 |
Phase noise specifications are dependent upon the frequency and type of the internal reference.
For more specification at your desired output frequency and stability, please contact Drawcom.
| Phase Noise (dBc/Hz) typical and based on 50MHz internal Crystal | ||||
| Offset Frequency | Output Frequency | |||
| 3 | 4 | 10 | 14 | |
| 100 | Reference Dependent – See Note | |||
| 1K | -100 | -95 | -90 | -85 |
| 10K | -115 | -110 | -100 | -95 |
| 100K | -115 | -115 | -110 | -105 |
| 1M | -135 | -135 | -120 | -115 |
Reference Frequency Notes:
Reference level required 0+/-3dBm
At offset frequencies up to 100 Hz, the output phase noise is degraded from that of the reference oscillator by approximately 20logN+6dB, where N is the ratio of the output to the reference frequency.