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CDCEL913-Q1: Capacitor value configuration question

Part Number: CDCEL913-Q1

Hi team

The crystal matching test result of CDCEL913-Q1 does not meet the customer requirements while customer could adjust the internal capacitance value of CDCEL913-Q and then meet the matching test, the test details we do not know but it is not related to my question. My question is: does the CDCEL913Q1 support the function that when the power is off, the configured/adjusted capacitance value of CDCEL913Q1 could be stored in the chip itself? Or do we have any requirements for the configuration process of the internal crystal oscillator of CDCEL913Q1?

  • Hello,

    all registers including the on chip crystal load capacitor selection can be stored in the internal EEPROM. The device does then start with the new register set from EEPROM at each power up. 

    See EEWRITE bit description and footnote 4 and 9.

    regards,

    Julian