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  • LMX2820: LMX2820 lock time

    TI Thinks Resolved
    Part Number: LMX2820 Hi, Customer would like to reduce lock time with instant calibration. Now lock time without any action is 100us at frequency hopping. Reset -> instant cal, lock time is 60us with attached register set. Could you guide how…

  • LMX2820: Unlock issue when using full assist calibration mode on LMX2820

    Part Number: LMX2820 Other Parts Discussed in Thread: LMX2594 When using the LMX2820, we first configure it to operate in the fast VCO calibration mode(FCAL) with No Assist. After normal initialization, the chip outputs a 5.65 GHz signal, and the LD …

  • LMX2820: About LMX2820 Instant Calibration

    TI Thinks Resolved
    Part Number: LMX2820 Hello E2E Experts, Instant calibration mode can be used to shorten the lock time. However, when I need to change the frequency in 1 MHz steps within the 10 GHz to 20 GHz range, can I use this mode? I am not sure if the initial…

  • LMX2820: Confirm multiple LMX2820 Chips can use same MUXOUT line

    TI Thinks Resolved
    Part Number: LMX2820 Hello, per the answer to the lniked question the MUXOUT pin of the 2820 can be placed on the same bus as multiple other LMX2820s as long as the R3 register is used to set the chip accordingly. The answer ends by stating there a plans…
    • Answered

  • LMX2820: LMX2820 Configuration Software

    Resolved
    Part Number: LMX2820 Which configuration software is used for the LMX2820? Could you provide a download link? I need to check the feasibility of the LMX2820 related configuration.
    • Resolved

  • LMX2820: The immediate fast lock of the LMX2820 is sometimes successful and sometimes fails

    TI Thinks Resolved
    Part Number: LMX2820 Hi Teams, The customer used the instant quick lock of LMX2820 and found that it sometimes locks and sometimes loses lock. Scanning from 9.1g-13g at intervals of 2M, using instant quick lock function, sometimes able to quickly…

  • LMX2820: LMX2820: When using Instant calibration , frequent loss of lock occurs at certain specific frequency points.

    Part Number: LMX2820 While using the Instant calibration on the LMX2820 , I am experiencing a high probability of PLL unlock at certain specific frequency points (around 8.3 GHz). These frequencies include 8.3 GHz / 4, 8.3 GHz / 2, 8.3 GHz, and 8.3 GHz…
    • Answered

  • LMX2820: Issue with ACAL_CMP_DLY configuration for LMX2820

    Resolved
    Part Number: LMX2820 Other Parts Discussed in Thread: LMX2594 , Tool/software: Hi, I am currently working with the LMX2820 and have encountered an issue while configuring the R6 register. I am unsure about how to set the value for ACAL_CMP_DLY. The…
    • Resolved
    • Answered

  • LMX2820: Disabling the State Machine Clock on LMX2820

    Resolved
    Part Number: LMX2820 Other Parts Discussed in Thread: LMX2594 Tool/software: Hello, I have a question regarding the state machine clock of the LMX2820. During our previous work with the LMX2594, we observed a significant improvement in spurs at ±fosc…
    • Resolved

  • LMX2820: Voltage Allowed on LMX2820 SRREQ Input pins

    TI Thinks Resolved
    Part Number: LMX2820 Tool/software: To use the LMX2820 SRREQ as a differential input, what is the ideal Vcm and Vswing?

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