Frequency and Timing
XPRO
Summary
High-Performance Rubidium Oscillator
Microchip's XPRO is a high-performance rubidium oscillator designed for a wide
range of telecommunications and test and measurement applications. The XPRO is
a drop-in replacement for the venerable LPRO, which has been widely installed in
wireless base station applications, RF test equipment and other applications where
an embedded high-performance oscillator is required.
The XPRO leverages over 35 years of proven rubidium atomic physics with ad-
vanced digital electronics architecture to provide an exceptionally stable oscillator
that meets the most demanding performance requirements.
With its low profile and standard connector interface, the XPRO is designed for
easy integration into time and frequency systems. Great care has been taken in the
design to minimize EMI emissions and susceptibility, including the use of a filtered
9-pin D-connector, SMA for the RF output and a shielded outer cover.
The XPRO is designed for long operating periods without maintenance (long-life rubidium lamp and extended crystal control range). With
a 5.0 × 10
–11
per month aging, the oscillator will maintain 1.0 × 10
–9
frequency accuracy for 10 years or longer without recalibration.
A low aging rate option is available for XPRO that will provide 1 × 10
–11
per month aging, resulting in an even more robust reference source.
Standard outputs are 10 MHz, 1PPS and a rubidium lock status bit. All monitoring and control is done through the TTL level RS-
232 style serial interface, allowing you access to comprehensive status and control parameters.
Standard Features
•
•
•
•
•
•
10 MHz output
1 PPS output
<5.0 × 10
–11
(optional <1.0 × 10
–11
) per month aging
Digital monitor and control
RoHS compliant
Low EMI emission and susceptibility
Benefits
•
Low profile with standard connector interface for easy
integration
•
Low maintenance
•
Long lifecycle (>10 years) without recalibration operation
www.microchip.com
MICROCHIP [ MICROCHIP TECHNOLOGY ]
