• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 22 subscribers
  • Views 377 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.

LMX2594: some questions

Hui Cao22
Expert 1280 points

Part Number: LMX2594

Tool/software:

Hello! There are several questions regarding the use of LMX2594 as follows:

1.If for the RF output port, I only use one RFOUTAP, and the remaining three RFOUTAM, RFOUTBM, and RFOUTBP are directly grounded at 50 ohms?

2. Is the LO output power given in the manual single-channel power or differential power?

3. Can the power supply of VCCBUF be provided together with the other several lines? (If differential output is not adopted)

  • 0
    TI__Guru** 122400 points

    Hi Hui,

    The unused complementary pin should be 50Ω terminated.

    Unused channel can be left floating.

    For example:

    All the power measurement are single-ended. 

    Yes, VccBuf can be connected together with other supply pins.

  • 0 in reply to Noel Fung
    Prodigy 10 points

    Hi, 

    Is the following Pout  only for channel A output  or  only for channel B output? Or for A and B output simultaneously? 

    For example， when channel A is used,  channel B is  floating，then the PoutA = 2dBm@15GHz。

    or when channel B is used,  channel A is  floating，then the PoutB= 2dBm@15GHz。

    or when both channel are used，PoutA=PoutB=2dBm@15GHz。

  • 0 in reply to xiaojing liu
    TI__Guru** 122400 points

    Hi Xiaojing,

    The output drivers are independent of each other, the output power of one channel will remain unchanged no matter what is the status of the other channel.