Oscilator cu LTC6905: Diferență între versiuni
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f_\text{OSC} = (\frac{\text{168.5MHz} * \text{10k\omega}}{R_\text{SET}} + \text{1.5MHz}) * frac{1} | f_\text{OSC} = (\frac{\text{168.5MHz} * \text{10k\omega}}{R_\text{SET}} + \text{1.5MHz}) * frac{1}{N} | ||
</math> | </math> | ||
Versiunea de la data 24 ianuarie 2020 10:41
Work in progress. :)
As shown in the Block Diagram, the LTC6905’s master oscillator is controlled by the ratio of the voltage between the V+ and SET pins and the current entering the SET pin (IRES). The voltage on the SET pin is forced to approxi- mately 1V below V+ by the PMOS transistor and its gate bias voltage. A resistor RSET, connected between the V+ and SET pins, “locks together” the voltage (V+ – VSET) and current, IRES, variation. This provides the LTC6905’s high precision. The master oscillation frequency reduces to:
Nu s-a putut interpreta (eroare de sintaxă): {\displaystyle f_\text{OSC} = (\frac{\text{168.5MHz} * \text{10k\omega}}{R_\text{SET}} + \text{1.5MHz}) * frac{1}{N} }