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The LNFR-100 is an ultra-low noise frequency reference.
The LNFR-100 contains 5 MHz and 100 MHz ultra-low
noise ovenized oscillators. The output at 10 MHz is
obtained by multiplying the signal from the 5
MHz oscillator. The 100 MHz oscillator is phase locked
to the 5 MHz oscillator to provide a lower phase noise
signal inside the bandwidth of the phase-locked loop.
The device can be used as a low noise source in phase
noise measurement systems. Other applications
include high stability frequency
synthesizers, reference frequency generation
and frequency synthesis chains for atomic standards.
The LNFR-100 can be phase locked via
a +/- 5 VDC tuning signal or with a 5 MHz 1 VRMS
signal. This synthesizer is offered in a stand-alone
rack-mount package. For frequency synthesis chain applications
the synthesizer is available in modular form.
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| Features | Applications |
|---|
- Low environmental sensitivity
- Ultra-low phase noise
- Very low spurious
|
- Atomic frequency standards
- Phase noise measurements
- Reference frequency generation
- Telecomunications standards
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| Specifications |
| Parameter | Conditions | Min | Typ | Max | Units |
|---|
| Output power | | +11 | +14 | - | dBm |
| Electrical tuning range | @ 5 MHz | +/-1 E-6 | - | - | - |
| Tuning port voltage | | - | +/-5 | - | VDC |
| Temperature Stability | @ 5 MHz, 0-50°C | - | - | +/-5 E-9 | - |
| Phase noise measured at 5 MHz | 1 Hz
10 Hz
100 Hz
>1 kHz | -
-
-
- | -118
-150
-169
-175 | -115
-145
-164
-173 | dBc/Hz |
| Phase noise measured at 10 MHz | 1 Hz
10 Hz
100 Hz
1 kHz
>10 kHz | -
-
-
-
- | -112
-142
-160
-167
-170 | -109
-138
-156
-165
-166 | dBc/Hz |
| Phase noise measured at 100 MHz | 10 Hz
100 Hz
1 kHz
>10 kHz | -
-
-
- | -120
-134
-157
-177 | -118
-131
-153
-172 | dBc/Hz |
| Spurious | 5, 10 and 100 MHz | - | - | -110 | dBc |
| Harmonics | 5, 10 and 100 MHz | - | -40 | - | dBc |
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LNFR-100 Options
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Option -HS (High Stability Oven)
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A 5 MHz OCXO with a temperature stability of +/- E-9 for the temperature range of 10 to 40 °C
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