CC1310: How to use internal crystal oscillator in RF

Yolande Wang

Part Number: CC1310

Hi team，

Can the RF core use an internal crystal oscillator? When I do not connect an external crystal oscillator, the RF cannot be fully and normally initialized. Why is this? What do I need to do?

Thanks & Best regards，

Yolande

over 1 year ago

0 TheGhostOf over 1 year ago

Mastermind 6620 points

From https://www.ti.com/lit/an/swra640g/swra640g.pdf: "The CC13xx/CC26xx devices have two crystal oscillators as shown in Figure 6-1. The high frequency crystal oscillator (HFXOSC), running at 24 MHz for CC13x0/CC26x0 and 48 MHz for CC13x2/CC26x2, is mandatory to operate the radio."

The internal oscillator is not suitable for RF (jitter, accuracy ec)

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CC1310: How to use internal crystal oscillator in RF