Name
Title | ||
|---|---|---|
A 400 MHz reconfigurable injection-locking based RC oscillator for ASK/FSK modulation |
Abstract | ||
|---|---|---|
In this work an RC oscillator, operating at 404.5MHz, MICS (Medical Implant Communication Service) band, is evaluated for both ASK/FSK modulation and injection locking based FSK (Frequency Shift Keying) demodulation. The oscillator, which consists of a cross-coupled relaxation topology, is analyzed and evaluated in 130 nm IBM CMOS technology. Injection locking is driven by a differential current signal. ASK (Amplitude Shift Keying) and FSK modulation are performed by controlling the cross-coupled bias current and the MOS varactor capacitance respectively. Simulation results show that, at the free-running frequency of 404.5 MHz, the oscillator presents a phase noise of -126.36 and -133 dBc/Hz at 1MHz and 10 MHz offset frequency respectively, while consuming 50 micro Watts of power from a 1V supply voltage. The oscillator frequency locking range, for a 1 micro Ampère injected current, is 398 MHz to 410 MHz which covers the whole MICS band. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/SBCCI.2013.6644876 | Integrated Circuits and Systems Design |
Keywords | Field | DocType |
CMOS integrated circuits,UHF integrated circuits,UHF oscillators,amplitude shift keying,demodulators,frequency shift keying,modulators,phase noise,varactors,ASK,CMOS technology,FSK modulation,MICS,MOS varactor,amplitude shift keying,cross-coupled bias current,cross-coupled relaxation topology,current 1 muA,demodulation,frequency 398 MHz to 410 MHz,frequency shift keying,injection locking,medical implant communication service band,phase noise,power 50 muW,reconfigurable injection-locking based RC oscillator,size 130 nm,voltage 1 V,ASK/FSK modulation,MICS band,RC CMOS oscillator | Quadrature amplitude modulation,Frequency-shift keying,Computer science,Amplitude-shift keying,Amplitude and phase-shift keying,Injection locking,Phase noise,Electronic engineering,Voltage-controlled oscillator,RC oscillator,Electrical engineering | Conference |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Karolinne Brito | 1 | 0 | 0.34 |
| Fernando Rangel de Sousa | 2 | 43 | 12.99 |
| Victor Ariel Leal Sobral | 3 | 1 | 0.72 |
| Robson Nunes de Lima | 4 | 3 | 4.19 |
| Raimundo Carlos Silvério Freire | 5 | 13 | 6.97 |
| Rangel de Sousa, F. | 6 | 1 | 1.35 |
| Nunes de Lima, R. | 7 | 0 | 0.34 |