Single_cell_temperature_compensated_crystal_clock

Published:2009/7/24 2:11:00 Author:Jessie | From:SeekIC

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.



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