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CDCE6214: Design Support

Allan Fan
Expert 7330 points
Part Number: CDCE6214


Hi expert,

May I have your help to review the schematic with 10Mhz reference input to 54Mhz output?

I don't know why but can't install TICS_pro successfully after renew laptop. Could you please help create a config file for CDCE6214 with 10Mhz reference input to 54Mhz output?

Is EEPROM the only way to program the part? Any other way and how?

Regards,

Allan

  • +1
    TI__Mastermind 29962 points

    Hi Allan, 

    Why is VDDO_34 connected to 1.8V rail yet OUT3/4 are not being used in schematic? 
    I see only OUT1 being used thus VDDO_12 should be connected to rail not VDDO_34

    Here is the .tcs file. 
    A microcontroller could also program device via i2c (which i understand is the case here given an I2C address is specified and I2C lines are connected somewhere) but this would have to be done on every power cycle if EEPROM is not used. EEPROM is used when you do not want to program CDCE6214 every power cycle and just wish for the IC to load configuration from memory. 

    Regards, 

    Vicente

    10 MHz in 54 MHz out.tcs

  • 0 in reply to vicente flores prado
    TI__Expert 7330 points

    Hi Vicente,

    Customer have one further problem about EEPROM programming. The HW_SW_CTRL in the schematic is floating and customer read the address is 0x68, should be in EEPROM mode?

    When customer read all registers by Linux i2c command, the registers seems Fall-back mode default value instead of EEPROM mode default value. 

    Could you please clarify what might goes wrong? Any guideline to use Linux to read registers?

    Fall-Back mode register "default value" in datasheet as below:

    Regards,

    Allan

  • +1 in reply to Allan Fan
    TI__Mastermind 23330 points

    Allan,

    The HW_SW_CTRL pin is not internally pulled up or down - this pin must be externally pulled low for selecting EEPROM Page 0, or pulled high for selecting EEPROM Page 1, otherwise the part will start in fallback mode.
    Thanks,

    Kadeem