1. Equipment Image

2. Functions

1) Improves the phase noise and short-term stability of the input signal;

2) Provides high-precision frequency and phase adjustment of output frequency signals;

3) Synchronizes the output one-second signal with an external one-second signal;

4) Provides front-panel controls;

5) Includes primary and backup serial ports for communication and control;

6) Automatically reports status every second.

3. Specifications

3.1 Input Specifications

10 MHz

1) Number of input channels: 1

2) Input impedance: 50 Ω

3) Level range: 7±1 dBm

1PPS Synchronization

1) Number of input channels: 1

2) Input amplitude: ≥2.4 V

3) Leading edge: ≤10 ns

4) Polarity: positive

3.2 Output Specifications

10 MHz

1) Number of output channels: 8

2) Output frequency adjustment range: ±1.0e-9; resolution: 1.0e-20

3) Output phase adjustment range: ±100 ns; resolution: 1 ps

4) Amplitude: 13±1 dBm

5) Output impedance: 50±10 Ω

6) Harmonic distortion: ≤-40 dBc

7) Non-harmonic distortion: ≤-70 dBc

8) Frequency stability (with an active hydrogen clock as input; stability at averaging times above 10 s depends on the hydrogen clock used):

• ≤3.0e-13(1s)

• ≤2.0e-15(3600s)

• ≤2.0e-15(86400s)

9) Single-Sideband Phase Noise

• ≤-120 dBc/Hz(1 Hz)

• ≤-139 dBc/Hz(10 Hz)

• ≤-147 dBc/Hz(100 Hz)

• ≤-150 dBc/Hz(1 KHz)

• ≤-150 dBc/Hz(10 KHz)

100 MHz

1) Number of output channels: 4

2) Amplitude: 13±1 dBm

3) Output impedance: 50±10 Ω

4) Harmonic distortion: ≤-40 dBc

5) Non-harmonic distortion: ≤-70 dBc

6) Single-Sideband Phase Noise

• ≤-100 dBc/Hz(1 Hz)

• ≤-115 dBc/Hz(10 Hz)

• ≤-127 dBc/Hz(100 Hz)

• ≤-140 dBc/Hz(1 KHz)

• ≤-150 dBc/Hz(10 KHz)

1PPS

1) Number of output channels: 2

2) Output amplitude: ≥3 V

3) Leading edge: ≤3 ns (short cable)

4) Polarity: positive

3.3 Interfaces

3.3.1 Signal Interfaces

The signal interfaces of the ultra-low-noise phase-locked oscillator are listed below:

3.3.2 Communication Interfaces

Two RS232 serial ports: primary and backup.

4. Structure

1) Designed in accordance with equipment structural requirements

2) Overall dimensions: standard 19-inch 3U rack-mount chassis

3) Chassis color: matte fine-textured RAL7035

4) Rear panel: input/output SMA connectors, DB-9F serial ports, power connector, power switch, and grounding terminal

5) Front panel: LCD screen for control and status indication