• State Resolved
  • Replies 1 reply
  • Subscribers 21 subscribers
  • Views 46 views
  • Users 0 members are here
Support feedback
Options
Options
Related

Original question:

LMX2615-SP: Operating out of recommended voltage 3.2 to 3.45

LMX2615-SP: Could output frequency (RFout) shift if the supply voltage goes above or below the recommended supply voltage

Björn VG
Prodigy 20 points
Part Number: LMX2615-SP


Hello,

Could the output frequency (RFout) of LMX2615-SP shift if the supply voltage goes out of the Recommended Operating Range (min. +3.20V, max. +3.45V)? If the supply voltage could go for 70µs to a voltage of max. +3.54V or if the supply voltage could go for 70µs to a minimum voltage of +3.10V, could the output frequency (RFout) shift during this duration?

Or will this only has effect for performance on the output power?

  • 0
    TI__Guru** 110570 points

    Hi Bjorn,

    The VCO and most of the circuitries of LMX2615 use the supply voltage from internal LDOs, the frequency will not shift due to external supply.

    Since RF output buffer is pull-high to Vcc, output power will be affected by the supply voltage.