HP 33120A User Manual page 31

Chapter 3 Specifications
HP 33120A / Option 001 Phase-Lock Assembly
Timebase Accuracy
Setability: < 0.01 ppm
±2 ppm 0°C - 50°C
Stability:
< 1 ppm in first 30 days (continuous operation)
Aging:
-7
10
Rear-Panel Input ( Ext Ref In terminal)
10 MHz ±50 Hz
Lock Range:
Level: -10 dBm to +15 dBm, +25 dBm
or 10 Vpp absolute maximum input
50Ω ±2%, 42 Vpk isolation from earth
Impedance:
Locktime: < 2 seconds
Rear-Panel Output ( Ref Out terminal)
Frequency: 10 MHz
Level: > 1 Vpp square wave into 50Ω
Phase Offset
Range: +360 to -360 degrees
Resolution: 0.001°
Accuracy: 25 ns
Trigger
Level: 5V zero-going pulse
> 2 µs
Pulse Width:
Fanout: Four (4) HP 33120As
30
/ month (after first 30 days operation)