Certificate No. 3875

Phase Locked Oscillators

High Stability Internal
Reference APL-06 Series

  • 300 MHz to 14 GHz
  • Very High Stability
  • Fundamental Frequency (CRO or DRO)
  • Internal Reference (OCXO)
  • Low Phase Noise
  • Low Microphonics
  • Low Current
  • Custom Design

The APL - 06 series of fundamental frequency phase locked oscillators utilise coaxial resonators (CRO) to 3GHz and dielectric resonators (DRO) to 14 GHz in a phase locked loop with an internal high stability OCXO reference. Circuit design uses SMT devices including Si bipolar active devices up to 3 GHz and GaAs FET active devices above 3 GHz. The output contains a buffer amplifier for improved ruggedness, higher output power and a wider range of load VSWR. The PLOs also have an OCXO reference monitor output. DRO types have an external tuning screw for factory set up only.

 General Specifications (also see options)
 Output Frequency 300 MHz to 14.0 GHz
 Frequency Stability +/-0.05ppm max. over -20+60C
+/-0.005ppm/day typ. at despatch
+/-0.5ppm/year max.
 Output Power +13dBm min. (see options)
 Output Power Stability +/-2dB max
 Harmonics -20dBc max.
 Ref. Related Spurious -70dBc max.
 Other Spurious -80dBc max.
 Load VSWR 2.5:1 max.
 Input Voltage +15V d.c. (see options)
 Input Current 600mA max. (for +13dBm)
Operating Temperature -20+60C
 Storage Temperature -40+85C
 Lock Alarm TTL high for locked
 RF Output Connector SMA female
 Ref. Monitor Connector SMA female

Phase Noise (dBc/Hz) (typical)
Offset Frequency (Hz) Output Frequency (GHz)
0.6 1.5 3.0 4.0 10.0 14.0
10 -63 -55 -49 -47 -39 -36
100 -93 -85 -79 -77 -69 -66
1K -117 -109 -103 -101 -93 -90
10K -125 -117 -111 -109 -101 -98
100K -135 -125 -115 -115 -110 -105
1M -140 -140 -135 -135 -120 -115

Options:
00 - Standard, based on 50 MHz internal OCXO.
Output Power
11 - +16dBm min. up to 10 GHz
12 - +20dBm min. up to 6 GHz
D.C. Supply
21 - Input Voltage +12V d.c.
22- Regulated +11 to +16V d.c.
23 - +28V d.c.

Custom Options:

  • Higher Output Frequency to 30 GHz (multiplied)
  • Higher Output Power to +30dBm (amplified)
  • Lower Harmonics (filtered)
  • Lock Alarm - Open Collector
  • Custom Sizes
  • Instrument or Rack Mount Housing with Power Supply

Model Numbers:
Examples:
APL-06-13.050-00 13.05GHz PLO with standard specifications
APL-06-9.750-11-23 9.75GHz PLO with +16dBm and +28V.


All dimensions are inches (mm)

We reserve the right to change standard product specifications without notice but will be pleased to consider control drawings for quotation.