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SINGLE CHIP GSM/EDGE TRANSCEIVER ARCHITECTURE WITH CLOSED LOOP POWER CONTROL
SINGLE CHIP GSM/EDGE TRANSCEIVER ARCHITECTURE WITH CLOSED LOOP POWER CONTROL
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机译:具有闭环功率控制的单芯片GSM / EDGE收发器架构
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摘要
A single chip GSM/EDGE transceiver comprises a fully differential receive chain, a subharmonic mixer in the receive chain, the subharmonic mixer configured to receive a radio frequency (RF) input signal and a local oscillator (LO) signal that is phase-shifted by a nominal 45 degrees, and a synthesizer having a voltage controlled oscillator and having at least one frequency divider to generate desired transmit and receive LO signals. The transceiver also comprises a transmitter having a closed power control loop, and a harmonic rejection modulator, the use thereof made possible by a frequency plan designed to allow the synthesizer to develop the transmit and receive LO signals without a frequency multiplier.
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