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.
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.
