Low Phase Noise Quartz Crystal Oscillator
Model FE-103A

Operation @ 5 to 20 MHz
Low Phase Noise: -155 dBc
Short Term Stability: 1x10-11 /sec
Aging: 3x10-7 /year

Function Description   Technical Characteristics

The FEI Series FE-103A features operation from 5 MHz to 20 MHz with low phase noise and excellent stability.

Typical phase noise is -142 dBc at 10 Hz from the carrier, -148 dBc at 100 Hz from the carrier, -155 dBc at 1 kHz from the carrier and -158 dBc at 10kHz and at 100 kHz from the carrier.

This oscillator is a double oven design using a 5th overtone SC cut crystal to insure both excellent long term stability and temperature stability.

Aging is 3x10-7/Year and 1x10-6 /10 years. Temperature stability is 1x10-10 over -10° to 60°C.

The FE-103A was designed for applications such as reference for Communications Systems and wireless applications such as cellular phone base stations.


Frequency 10 MHz
Short Term Stability 1 x 10-11 /second,
3 x 10-10 /day
Long Term Stability 3 x 10-7 /year,
1 x 10-6 /10 year
Temperature Stability 1 X 10-10 over -10°C to +60°C
Power Supply Voltage 1 X 10-10 13.5V
to 24VDC
Warm-up Time 5 minutes to 1x10-7 @ -10°C 48 hours to 3x10-10 /day
Phase Noise
10 MHz -138 dBc/Hz
100Hz -145 dBc/Hz
1 kHz -150 dBc/Hz
10 kHz -155 dBc/Hz
100 kHz -155 dBc/Hz
DC Power 5.5W Peak @ 15 VDC 3.2W @ 10°C after stabilization
Size 2" x 2" x 3" high
Connectors RF - SMA
Voltage Tune - SMA