A low-power radio transceiver comprising a loop filter/sample and hold circuit (66) for storing the VCO (32), control voltage (40), thereby allowing the PLL in the synthesizer (2), to be opened and closed with minimum output frequency drift. Power consumption is reduced by partially powering down the synthesizer (2) during open-loop operation. Automatic frequency control is provided in the receiver.
申请公布号
WO0019641(A1)
申请公布日期
2000.04.06
申请号
WO1998US14387
申请日期
1998.07.21
申请人
CLEVELAND MEDICAL DEVICES INC.;DACUS, FARRON, L.;SCHMIDT, ROBERT, N.;HENDRIX, STEVEN, P.
发明人
DACUS, FARRON, L.;SCHMIDT, ROBERT, N.;HENDRIX, STEVEN, P.