Title :
Current compensation method for adjustment free stereo multiplex voltage control oscillator in FM receivers
Author :
Loa, K.K. ; Ng, K.S. ; Hassan, A.R. ; Ma, J.-G. ; Yeo, K.S. ; Do, M.A.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
An alternative solution of an adjustment free stereo multiplex (MPX) voltage control oscillator (VCO) circuit is proposed. The design approach taken was the utilization of a compensation circuit to change the VCO charging/discharging current, and hence, the natural frequency (fn). Manual adjustment of the external resonator was passed over which translated to a reduction in labor and timing cost
Keywords :
compensation; electric current; frequency modulation; phase locked loops; radio receivers; voltage-controlled oscillators; FM receiver; VCO charging/discharging current; adjustment free VCO circuit; compensation circuit; current compensation method; natural frequency; stereo broadcasting; stereo multiplex VCO; voltage control oscillator circuit; Baseband; Circuits; Costs; Demodulation; Frequency division multiplexing; Frequency modulation; Phase locked loops; Timing; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951443
