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Selection recommendation

Yale Li 李耀先
Expert 4660 points


Hi Team,

Our customer need to select a MCU with some RF functions. I'm not familiar with RF. Here are their demands:

Control Unit:

Sequence control of Base Station, typically realized by a Microcontroller.

RF Module:

Low frequency oscillator typically at 134.2 kHz, controlled by Control Unit.

LF Antenna:

Typical a serial resonant circuit tuned to RF Module transmit frequency.

UHF Receiver:

Receiver for amplitude or frequency modulated signals transmitted by the ID Device

typically in the frequency 433MHz.

Identification Device (ID-Device):

Immobilizer Mode

- Immobilizer

- Remote Keyless Entry (RKE)

- Passive Entry / Passive Start (PEPS)

While the Remote Keyless Entry (RKE) and the Passive Entry / Passive Start functions are only possible with battery support, Immobilizer function is functional without or with non-functional battery. The function of the IC as battery-less operating transponder (Immobilizer) is compatible to the future AES transponder functions.

- ARM serial wire debug (SWD)

Thanks & Regards

Yale Li

  • +1
    TI__Mastermind 18895 points

    Hi Yale,

    To clarify, is the customer looking for the following specification:

    • What is the application?
    • Does the customer want TX at 134.2 kHz? To my knowledge our Sub-1 GHz transceivers/SoCs do not transmit in this band (for the CCxxxx devices).
    • RX at 433 MHz.
    • What is the output power requirement/range?
    • In this context, does batteryless operation mean mains-powered or NFC (or something else?).
    • What is immobilizer mode?
    • None of our current devices have ARM serial wire debug (SWD). They all use JTAG.

    Regards,

    Zack