Mobile phone chip and RF chip are two kinds of electronic components with different functions.
Mobile phone chip is a classification of IC, is a silicon board collection of a variety of electronic components to achieve a specific function of the circuit module. It is the most important part of the electronic equipment, bearing the function of computing and storage.
The RF chip refers to an electronic component that converts radio signal communication into a certain radio signal waveform and sends it out through the antenna resonance.
Strictly speaking, the RF chip generally refers to the RF signal transceiver chip, in the mobile phone, and the baseband chip is approximately equivalent. However, signal transceiver and modulation are two necessary links, so the above two functions are put together in a chip, which is the baseband chip.
The baseband chip is small in size and low in power consumption, and is used to transmit and receive signals, modulate and demodulate them.