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Single_cell_temperature_compensated_crystal_clock

2017-01-07 03:45  
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Single_cell_temperature_compensated_crystal_clock
This 1.5-V oscillator provides a temperature-compensated output without the use of a current-consuming oven. Figure 8-15B shows the compensated-versus-uncompensated oscillator drift. Current consumption is 850 μA or less. The varactor diode tunes the oscillator frequency as the dc bias varies. An ambient-temperature-dependent bias is generated by the remaining circuitry.