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A dual band divide by four frequency divider for biomedical sensor and wearable applications

Authors :
Wen-Cheng Lai
Sheng-Lyang Jang
Cheng-Lin Li
Source :
2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT).
Publication Year :
2016
Publisher :
IEEE, 2016.

Abstract

This presents a differential outputs divide-by-4 with class-A-C injection-locked frequency divider (ILFD) was implemented in the TSMC standard 0.18 μm CMOS process for biomedical sensor and wearable applications. The ILFD is based on a differential VCO with one injection MOSFET for coupling the external signal to the resonator. The locking range of the ILFD is increased by using a new LC resonator. Measurement results show that at the supply voltage of 1.5 V, the divider's free-running frequency is 3.5 GHz, and at the incident power of 0 dBm the locking range is about 3.1GHz (20.4%), from the incident frequency 3.4 to 4.1 GHz. The core power consumption is 12.9mW. The die area is 0.66mm2.

Details

Database :
OpenAIRE
Journal :
2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT)
Accession number :
edsair.doi...........53d43e2a76921f075df748ea27935669
Full Text :
https://doi.org/10.1109/impact.2016.7800014