The PLDRO (Phase Locked Dielectric Resonator Oscillator) provides the ultra-low phase noise and an excellent frequency stability when it is phase-locked to a clean and stable crystal reference signal. The PLDRO provides ideal signal for commercial and military systems that require ultra-low phase noise, low spurious, and high frequency stability.

Our PLDROs are available in four series products: Single Loop PLDRO, Dual Loop PLDRO, Fractional-N PLDRO, and Variable Frequency PLDRO. The Single Loop PLDRO is a phase locked dielectric resonator oscillator whose output frequency is generated by a single phase locked loop. The Single Loop PLDRO series are classified into various types of PLDROs.



●  Ultra low phase noise
●  Low spurious
●  Phase-locked alarm
●  Wide supply voltage
●  Low current consumption
●  Compact housing
●  Rugged construction



●  Multi-channel Output
●  Output power: +17 dBm (typ.)
●  Supply voltage: +6 VDC
●  Operating temperature: -20 ℃ to +70 ℃ / -40 ℃ to +85 ℃
●  Field replaceable SMA-jack
●  Laser marking



●  Radar systems
●  VSAT/Satellite communication systems
●  Test equipment
●  Microwave transmitters & receivers
●  Cable TV links (CATV)
●  Local area networks (LAN)
●  Missile guidance


Outline Drawings

Single Bed Housing

Hermetically Sealed Housing

Dual Bed Housing

Dual Channel Housing

Triple Channel Housing


  Single Loop PLDRO-rev6.2