32khz Crystal Oscillator Circuit. The oscillators or frequency generators provide a waveform out in various forms. The circuit makes use of an unbuffered inverter four external resistors two capacitors and a 32 768 khz crystal.
General description the ds32khz is a temperaturecompensated crystal oscillator tcxo with an output frequency of 32 768khz. The oscillators or frequency generators provide a waveform out in various forms. Schematic and bill of materials figure 1 shows the external oscillator circuit schematic.
This device addresses applications requiring better timekeeping accuracy and can be used to drive the x1 input of most maxim integrated real time clocks rtcs chipsets and other ics containing rtcs.
With the components show the current from a 3v battery is less than 1 2 microamps. The circuit makes use of an unbuffered inverter four external resistors two capacitors and a 32 768 khz crystal. Table 1 lists the types of crystal oscillator circuits that can be used with each type of rabbit microprocessor. The most common piezoelectric material used in electronic circuits is quartz crystal but ceramic resonators are also used usually in low cost or less timing critical applications.
