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Extended Frequency Range

Fri, 04/06/2001 - 5:20am
In an effort to address constraint design engineers face, ValpeyFisher Corporation is pleased to announce improvements to its VF194/VF294 tri-state VCXO (voltage controlled crystal oscillator). This device not only astounds with its incredibly small size, but also with an extended frequency range from 1.5 to 160 MHz. The world's smallest VCXO, measuring just 5.09 mm × 7.62 mm, offers designers the widest frequency in a package of this size.

With the ability to combine different aspects of the oscillator design, ValpeyFisher is able to offer solutions to design engineers servicing many markets. The frequency range that this VCXO can now achieve well exceeds the 155.520 MHz used in SONET applications. Although the VF194/VF294 is applicable in many electrical circuit devices, xDSL communications, SONET/SDH, digital video, HDTV, cellular base stations, ISDN, and wireless LANs particularly compliment this VCXO's size and frequency range.

This tri-state hybrid device, housed in a standard 6-pin leadless ceramic chip carrier, offers ± 25 ppm stability, with ± 100 ppm pullability. The selectable tri-state options are available on pin 2 or pin 5, which will help to accommodate design preferences.

This device is HCMOS/TTL compatible with an ECL output version under development. Both 5V and 3.3V devices are available. The VF194/VF294 operates over either commercial or industrial temperature ranges. A simple design makes the miniature clock source cost effective for many applications.

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