USERS MANUAL
NR2310-O/G
REVISION
H
DATE
7/17/20
Page #:
6 of 21
www.novuspower.com
Crystal - The Time Base
Novus crystal-based frequency reference products are based upon either TCXO
or OCXO technology. Temperature compensated crystal oscillators will normally
use an AT cut crystal and electronically compensate the device with temperature.
An OCXO device uses a SC (stress compensated) crystal and the part is held at
a fixed temperature to minimize temperature drift.
The TCXO implementation results in a temperature stable reference in the single
digit parts per million. An OCXO device affords a reference that is almost two
orders of magnitude more stable than the TCXO.
COMPARISON OF AN AT VERSUS A SC CUT CRYSTAL
