Method and system for software defined power amplifier for multi-band, multi-standard applications

A system comprising:

• at least one circuit for configuring a single programmable output stage of a multi-band, multi-standard transmitter to handle transmission of a signal according to a selected one of a plurality of wireless communication protocols and a corresponding one of a plurality of frequency ranges associated with said signal;
• where the single programmable output stage comprises switched impedance matching circuits at inputs of a differential pair and a plurality of switched load elements at outputs of said differential pair;
• and
• where the at least one circuit biases a power amplifier within said single programmable output stage to operate in one of a plurality of classes of operating associated with said selected one of said plurality of wireless communication protocols;
• where the at least one circuit configures said single programmable output stage for said selected one of a plurality of wireless communication protocols by selectively coupling said power amplifier within said single programmable output stage to a switch or a duplexer;
• and
• the at least one circuit configures said single programmable output stage for said corresponding selected one of said plurality of frequency ranges by selectively coupling at least one of said switch or said duplexer to one of a plurality of antennas.

A non-transitory machine-readable storage having stored thereon, a computer program having at least one code section executable by a machine, the at least one code section comprising:

• code that configures a single programmable output stage of a multi-band, multi-standard transmitter to handle transmission of a signal according to a selected one of a plurality of wireless communication protocols and a corresponding one of a plurality of frequency ranges associated with said signal;
• code that biases a power amplifier within said single programmable output stage to operate in one of a plurality of classes of operation associated with said selected one of said plurality of wireless communication protocols comprising at least one of:
• EDGE, GSM, WCDMA or wireless LAN;
• code configures the single programmable output stage for said selected one of a plurality of wireless communication protocols by selectively coupling said power amplifier within the single programmable output stage to at least one of a switch or a duplexer;
• and
• code that configures said single programmable output stage for said corresponding selected one of said plurality of frequency ranges by selectively coupling at least one of said switch or said duplexer to one of a plurality of antennas;
• and
• where the single programmable output stage comprises switched impedance matching circuits at inputs of a differential pair and a plurality of switched load elements at outputs of said differential pair.