KVG Quartz Crystal Technology has developed new high-frequency OCXOs (oven-controlled crystal oscillators) specified for the frequency range of 100 MHz to 500 MHz.
These new products possess enhanced low phase noise performance with low G sensitivity (LGS) due to new phase-noise-optimised SC-crystals utilised in the low-noise multiplier circuits.
For a 100 MHz output signal, the phase noise at 100 Hz from the carrier is less than -130 dBc/Hz (optional -135 dBc/Hz); it is below -155 dBc/Hz at 1 kHz (optional -160 dBc/Hz); and -170 dBc/Hz at 10 kHz. The noise floor at a distance of 100 kHz and larger is better than –175 dBc/Hz. For a 500 MHz output signal, the phase noise typically is less than -120 dBc/Hz at 100 Hz carrier offset; better than -145 dBc/Hz at 1 kHz; and below -155 dBc/Hz at 10 kHz; the noise floor at 100 kHz and higher is at –160 dBc/Hz, typically.
In addition to their phase noise performance, the new OCXOs also have excellent frequency stability of ±50 ppb over the temperature range from -20°C to +70°C. Versions for an extended temperature range from –40°C to +85°C are also available. The long-term stability (ageing) of the products is better than ±3 ppm in 15 years. Special attention was paid to HiRel applications requiring low G sensitivity. KVG is utilising specially designed, low-G crystals to optimise the vibration sensitivity for mobile applications such as train, aircraft or trucking. This makes it possible to achieve a dynamic G sensitivity of less than 1 ppb/g.
A rugged metal housing (51 x 51 x 29 mm) has been designed for the specific needs of HiRel applications. It has an SMA connector for signal extraction using a coaxial RF cable and feed-through capacitors for the operating voltage, the tuning voltage and the reference voltage connections.
These OCXOs are suitable as a reference for microwave signal sources, for the radar in professional satellite communications technology, for applications in the field of measurement and medical equipment (MRI), and for military applications with high demands on short-term as well as long-term stability and phase noise.
Clearing the Static: Effectively control static in your workplace Actum Electronics
Circuit & System Protection
Controlling electrostatic discharge in the workplace is crucial to protect sensitive electronic equipment from damage. Implementing an ESD control program involves various measures and tests.
Read more...Film and mica capacitors Actum Electronics
Passive Components
By utilising various polymer dielectrics plastics, Exxelia film and mica capacitors meet most technical requirements and serve all functions from standard filtering to specialised applications.
Read more...Clearing the Static: Cleaning in an ESD-protected area Actum Electronics
Circuit & System Protection
Cleaning in a protected electrostatic discharge area is a critical task to maintain the integrity of sensitive electronic components and prevent damage caused by static electricity.
Read more...ESD vinyl flooring Actum Electronics
Manufacturing / Production Technology, Hardware & Services
ESD vinyl needs to be earthed by laying a conductive carbon or copper-based adhesive to glue down the sheeting.
Read more...ESD chair Actum Electronics
Manufacturing / Production Technology, Hardware & Services
An ESD chair forms an integral part of grounding within the ESD protected area to prevent damage to sensitive components.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version