For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A 300-MHz-Band, Sub-1 V and Sub-1 mW CMOS SAW Oscillator Suitable for Use in RF Transmitters
Minoru KOZAKI Norio HAMA
IEICE TRANSACTIONS on Electronics
Publication Date: 2005/04/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Low-Power LSI and Low-Power IP)
ultra low power, fully depleted SOI, SAW oscillator, remote keyless entry,
Full Text: PDF>>
An ultra low power CMOS SAW oscillator in the 300-MHz-band that operates on a sub-1 V supply voltage and at sub-1 mW power consumption has been developed. The SAW oscillator is fabricated in a 0.35-µm fully depleted SOI (FD-SOI) process with low voltage operation capability. The SAW oscillator is configured as a type of Colpitts oscillator but consists of 3 cascaded amplifiers instead of a single amplifier. Although the circuit configuration is quite similar to the conventional Colpitts oscillator, this proposed configuration generates an excessively high negative resistance that even exceeds the theoretical limit of the conventional one.