Spectracom Corporation
EPSILON CLOCK MODEL EC1S
EPSILON CLOCK User’s Manual
3-1
3
3
3
3
Features
Features
Features
Features
3.1
3.1
3.1
3.1
Frequency Output
Frequency Output
Frequency Output
Frequency Output
Connectors: 10MHz SMA Female
Pin Settings
Center contact:
Sine-wave signal
Outer contact:
Ground
Signal characteristics:
EC1S-LC
EC1S-SO
EC1S-DO
Signal waveform
1 x 10 MHz, sine-wave
Typical level
5 dBm load 50
Ω
Harmonic distortion / duty cycle
-25 dBc
-40 dBc
Accuracy (Average over 24 hours
when GPS locked)
< ± 1 x 10
-11
< ± 2 x 10
-12
< ± 1 x 10
-12
Medium stability (without GPS,
constant temperature, after 2 weeks of
continuous operation)
5 x 10
-9
/day
2 x 10
-10
/day
1 x 10
-10
/day
Short term stability (Allan variance) @
1s
@10s
@100s
2 x 10
-11
6 x 10
-11
6 x 10
-11
1 x 10
-11
3 x 10
-11
3 x 10
-11
5 x 10
-12
1 x 10
-11
1 x 10
-11
Temperature stability (peak to peak)
1 x 10
-7
(from 10 to
30°C)
1 x 10
-9
(from 0 to
60°C)
2 x 10
-10
(from –5 to
70°C)
Phase noise (typical, static
conditions) 10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
-100 dBc / Hz
-120 dBc / Hz
-140 dBc / Hz
-145 dBc / Hz
-145 dBc / Hz
-120 dBc / Hz
-130 dBc / Hz
-140 dBc / Hz
-145 dBc / Hz
-145 dBc / Hz
-120 dBc / Hz
-130 dBc / Hz
-145 dBc / Hz
-145 dBc / Hz
-145 dBc / Hz