Other NXP ProductsのトピックMFRC631 TX optimization

MFRC631 TX optimization

Taka1 — Sun, 24 Jan 2021 02:01:16 GMT

I'm looking for a reference information for an MFRC631 to optimize TX behavior. There are some to change as follow.

8.6.2.1 set_residual_carrier bits

Table 126. TxAmp bits

Table 129. Txl register

Any register to modify the timing of Pch/Nch & Non Monotonic?

As anohter example, for PN5180, there are some register related to MOD_FALLING/RISING. I'm expecting similar one.

Re: MFRC631 TX optimization

fangfang — Mon, 25 Jan 2021 06:39:57 GMT

Hello,

For the optimize TX of rc631 please refer to the 4.3 Optimizing the transmitting of the application note

URL:https://www.nxp.com.cn/docs/en/application-note/AN11019.pdf.

You will find the information how to optimize the transmitting.

Hope it help you. Have a nice day.

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Re: MFRC631 TX optimization

Taka1 — Mon, 25 Jan 2021 13:51:20 GMT

Thanks for explanation. Reached at what I expected. One minor further question. How can we modify Tr/Tf?

On AN11019.pdf, I could find "Tx Shaping (rise and fall time, if needed)". But couldn't find it & its similar one on MFRC631 datasheet. By any chance, TxClkMode is the one to modify? If you could give a hint, I'd appreciate it.

Re: MFRC631 TX optimization

Taka1 — Sun, 31 Jan 2021 22:40:44 GMT

Dear Fangfang,

Any update/clue? If you could guide me, I'd appreciate it.