How does the earphone cable in a mobile phone pick up the FM reception?

As I understand, the RF frequency-modulated signal centered in the range of $88-108\textrm{ MHz}$, is picked by the earphone antenna and is directly sampled by the sound card adc at $48\textrm{ kHz}$ and then digitally processed. Will this process not cause aliasing? Could anyone please correct my understanding?

• Your question is based on a misunderstanding. The RF signal is not directly sampled by the sound card. – Marcus Müller Jun 29 '17 at 8:36
• by the way, capitalization makes a difference. m = milli = $10^{-3}$; M = Mega = $10^6$. Also, Hertz is abbreviated Hz, not hz. – Marcus Müller Jun 29 '17 at 8:38
• (the earphone cable just doubles as an antenna for a dedicated FM receiver; the soundcard hasn't got anything to do with FM reception. In fact, it doesn't even "get" radio frequencies – they're filtered out before and fed to the FM receive chain) – Marcus Müller Jun 29 '17 at 8:43
• @MarcusMüller This is a fine answer, why not post below so this one is not left open? I fixed the title. – Dan Boschen Jun 29 '17 at 14:54
• @DanBoschen If you say so :-) – Marcus Müller Jun 29 '17 at 16:46