An RF divider directly synthesizes a desired RF as a digital pattern that can be programmed and output at a VCO frequency. An exemplary RF divider comprises a pre-sequencer and a parallel-to-serial converter. The pre-sequencer successively outputs consecutive M-bit sections of a parallel word, where the parallel word comprises one or more copies of a frequency dividing bit pattern defining a frequency divisor. The parallel-to-serial converter performs a parallel-to-serial conversion on the M-bit sections of the parallel word based on the fixed radio frequency to generate an output signal having the desired radio frequency, where the output signal comprises a serial bit stream of the parallel word.
申请公布号
WO2012041852(A3)
申请公布日期
2012.07.26
申请号
WO2011EP66769
申请日期
2011.09.27
申请人
ST-ERICSSON SA;MATEMAN, PAUL;HESEN, LEONARDUS;FRAMBACH, JOHANNES