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TPS65233 how to make 44kHz tone signal

KIYOSHI NARISAWA1
Expert 1510 points
Other Parts Discussed in Thread: TPS65233

Dear TI

Customer is asking how to make 44kHz tone signal  of TPS65233.

Do you have any reference circuit  to make 44kHz tone signal?

Please conntact  to below address.

narisawa-k@clv.macnica.co.jp

Thank you your cooperation

Best Regards

K.Narisawa

  • 0
    TI__Prodigy 80 points

    Hello,

    Basically, TPS65233 can't generate 44kHz tone signal itself. The only option is to apply the 44kHz tone signal(generated by MCU or SoC) on EXTM, TPS65233 will sync with EXTM to generate 44kHz tone. 

    Well, TPS65233 LNB output tone has 10us for each rising and falling time when tone exists. 44kHz tone is approaching the frequency limit. I have double checked the 44kHz tone application, the LNB tone output will be triangle.  Please double check if the 44kHz tone is necessary.

    Jennifer