On 1/22/2011 6:04 AM, Michael Baker wrote:
I have a need for a 110 MHz VCXO in a 1.8GHz to 7.5GHz
tracking generator I am building for my Tek 494 spectrum
analyzer. I bought a pair of Silicon Labs 110 MHz VCXO
chips for less than $25 for the pair from Cramer
Distributors. The Si595 VCXO chips are in an
"industry standard" 5mm X 7mm surface-mount package.
These so called "VCXOs" are not VCXO's. They are just
synthesizers that functionally emulate a VCXO. The phase
noise and jitter are poor as compared to a real VCXO,
such as a CTS 357L ($8 at Digikey).
Maybe they will work in your application anyway, just don't
kid yourself about what you are getting.
Rick Karlquist N6RK
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