The PLDRO (Phase Locked Dielectric Resonator Oscillator) provides the ultra-low phase noise and excellent frequency stability when it is phase locked to a clean and stable crystal reference signal.
Our PLDRO series are available in three types: Single Loop PLDRO, Single Loop Digital-PLDRO and Dual Loop PLDRO.

The Fractional-N PLDRO is an innovative phase locked dielectric resonator oscillator that improves the reference frequency dependence of the output frequency. This PLDRO series can generate any frequency in 10KHz steps within 5 GHz to 13 GHz, has the same phase noise characteristics as Single Loop PLDRO, and cheaper than Dual Loop PLDRO. In addition, this PLDRO series has the same housing size and lower power consumption compared to Dual Loop PLDRO.



●  Can generate any frequency in 10 KHz steps
●  Ultra low Phase Noise
●  Low spurious
●  Phase-locked alarm
●  Internal voltage regulators
●  Compact Housing
●  Rugged construction



●  17 dBm (typ.) output power
●  Extended operating temperature: -20 ℃ to +70 ℃
●  10 VDC supply voltage
●  1 KHz frequency steps
●  Field replaceable SMA-jack
●  Customized outlines
●  Laser marking



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

Fractional-N PLDRO

▪ Can generate any frequency in 10 KHz steps
▪ Ultra low phase noise: -120 dBc/Hz (typ.) @100 KHz
     offset from 10 GHz
▪ Low spurious: -80 dBc (typ.)
▪ Low power consumption
▪ Phase-locked alarm
▪ Compact housing: 2.25"[57.15]x2.25"[57.15]x1.06"[27]