• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 21 subscribers
  • Views 232 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMX2595: LMX2595

singam vamshi krishna
Intellectual 775 points
Part Number: LMX2595
Other Parts Discussed in Thread: MSP430F5529

Hi sir,

I have few doubts related to LMX2595.

1) What is the stability of LMX2595 in terms of parts per million PPM.

2) Why the power is different at different frequencies.

3) At What rate the tuning voltage is changed for each step of frequency.

4) Is there any way to change phase noise at the output other than feeding it with good reference signal.

5) Do I get two outputs at same time (RFoutAP and RFoutAM ) if I feed single ended reference input signal, (note in this case my frequency is greater than 15GHz) If yes will the output be at same phase.

6) What is the clock speed in LMX2595, (for the master device(MSP430f5529 to transfer data into slave device(LMX2595) .

Any help will be greatly appreciated.

Thanks in advance.

  • 0
    TI__Guru** 110210 points

    Hi singam

    1. I don't understand what kind of information you are asking, general reliability information can be found here: http://www.ti.com/support-quality/reliability/reliability-home.html

    2. Power consumption is always frequency / speed dependent, higher freq/speed tends to consume more energy. In the chip, there are seven VCO and each VCO consumes different current. TICS Pro will give you an estimation on power consumption based on your configuration.

    3. Please use PLL Sim to see how the Vtune vaires over time.

    4. Again please use PLL Sim to optimize the phase noise. 

    5. The differential output buffer will always give you the same out-of-phase signals from the P and M pins simultaneously. 

    6. SPI read and write speed are specified in the datasheet. 

    FYI, we have put together some training videos in ti.com, feel free to take some time to visit https://training.ti.com/ti-precision-labs-clocks-and-timing?context=1139747-1140114. Thanks for watching.