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LMK61E08: Difference from LMK61E07

Dice-K
Mastermind 6740 points
Part Number: LMK61E08
Other Parts Discussed in Thread: LMK61E07

Hi support team,

Please let me know the difference between LMK61E08 and LMK61E07.

Regards,
Dice-K

  • 0
    TI__Expert 6140 points

    Hello, 

    The devices are the same minus difference in factory programmed EEPROM configuration. 

    LMK61E08 uses a much larger N divider value (specifically the fractional numerator/denominator), different VCO frequency, and output divider amongst other internal registers. The results are while the output frequency remains the same - the typical jitter value is closer to 300 fs however there's much better precision with DCO tuning allowing for ~1 ppb stepping per numerator update compared to 32k+ ppb on the LMK61E07. 

    But these are only startup EEPROM configurations. Register updates after and/or EEPROM programming update after powerup can make either one behave exactly the same with the same performance given a configuration. 

    Thanks and regards,

    Amin