Temperature compensated SAW oscillator offers low phase noise/jitter
Responding to industry demand for clock oscillators with higher frequencies and improved phase noise, Q-Tech has developed a new family of temperature compensated SAW oscillators which can generate a low phase noise/low jitter signal output at frequencies between 300MHz and 2.5Ghz.
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The company also says it has overcome the poor temperature stability exhibited by SAW oscillators by adding temperature compensation into the oscillator's design.
The TCSO's signal output can hold a stability of +/-50PPM over a temperature range of -40 to 85°C, with a phase noise floor as low as -180dbc/Hz and -130dbc/Hz at 1KHz off-set from the output frequency.
For software defined radio systems and other applications using high frequency a/d converters, Q-Tech says the TCSO's low phase noise/low jitter signal can deliver an improved system signal to noise ratio.
An additional benefit is that the output frequency can be pulled +/-100PPM by an external control voltage, making the device suitable for use in a PLL to generate a low phase noise signal for radio transmission.