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Saturday, March 20, 2010

Mobile phone general construction

Basics of mobile phone:
See the basic components of a mobile phone.

Components description:

RF section
Radio frequency transmit and receive component.
converts all RF signals for baseband and from baseband to RF section
Rx = Receive; Tx = Transmit

Ananlog Baseband/Voiceband CODEC
Coder/Decoder. Digitalize signals for the DSP and analogized signals for RF.

Power managemant / DC-DC
this component regulates and supplies all components in mobile pohne.
DC = Direct current

main processing unit of mobile phone, mostly used ARM based processors.
DSP = Digital Signal Processor

Flash / ROM, SRAM
permanent memory to store operating system and phones/users specific data

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