Title :
A low voltage, low power VCO for the 88-108MHz FM broadcasting band
Author :
Ruffieux, David ; Roux, Erwan Le ; Melly, Thierry ; Peiris, Vincent
Author_Institution :
RF & Analog ICs, Microelectron. Div., Centre Suisse d´´Electronique et de Microtechnique, Neuchatel, Switzerland
Abstract :
A low power, low voltage, VCO for the 88-108MHz FM broadcasting band is presented. Capable of functioning down to a supply voltage as low as 0.9V (end of life voltage of an alkaline battery) under all process corners and over an industrial temperature range (-25/spl deg/C to 75/spl deg/C), the VCO, running at twice the FM frequency band achieves a tuning range of 30%, a phase noise of -103dBc/Hz @ 120kHz offset and features an amplitude regulation mechanism to limit is power dissipation to 180/spl mu/A. Quadrature LO signals necessary in direct conversion receiver architectures are obtained with a SCL double cross-coupled latch divider-by-2 for another 50/spl mu/A.
Keywords :
frequency modulation; low-power electronics; radio receivers; voltage-controlled oscillators; -25 to 75 C; 120 kHz; 180 muA; 50 muA; 88 to 108 MHz; FM broadcasting band; SCL double cross-coupled latch divider; amplitude regulation; industrial temperature range; low power VCO; low voltage VCO; phase noise; power dissipation; quadrature LO signals; receiver architectures; supply voltage; tuning range; Batteries; Broadcasting; Electricity supply industry; Frequency; Low voltage; Metals industry; Phase noise; Temperature distribution; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European
Conference_Location :
Estoril, Portugal
Print_ISBN :
0-7803-7995-0
DOI :
10.1109/ESSCIRC.2003.1257181
