A 900MHz RFID reader chip with RC calibration

Author

Shouxian, Mou ; Kaixue, Ma ; Seng, Yeo Kiat

Author_Institution

Circuits & Syst. Div., Nanyang Technol. Univ., Singapore, Singapore

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

124

Lastpage

129

Abstract

An RFID scanner chip targeted to operation frequency range of 860MHz to 960MHz is designed and fabricated. To reduce chip performance degradation due to process and temperature variation, resistor and capacitor calibration is adopted. Resistor calibration output codes are used to adjust main circuit blocks´ biasing current. Capacitor calibration output codes are used to fine tune filter operating range and DAC conversion accuracy. The reader is implemented with a 90nm standard CMOS process and has a chip area around 3.1mm × 3.3mm. The chip is packaged with QFN48 and mounted on PCB. The proposed RFID reader consumes around 90mW power, which is possible to be integrated on a mobile phone or for other applications.

Keywords

CMOS integrated circuits; calibration; capacitors; digital-analogue conversion; electronics packaging; printed circuits; radiofrequency identification; resistors; DAC conversion accuracy; PCB; RC calibration; RFID reader; RFID reader chip; RFID scanner chip; capacitor calibration output code; chip area; circuit block biasing current; fine tune filter operating range; frequency 900 MHz; mobile phone; performance degradation; resistor calibration output code; standard CMOS process; CMOS integrated circuits; Calibration; Capacitors; Radiofrequency identification; Resistors; System-on-a-chip; Voltage-controlled oscillators; CMOS; RC calibration; RFID; resistor calibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits (ISIC), 2011 13th International Symposium on

Conference_Location

Singapore

Print_ISBN

978-1-61284-863-1

Type

conf

DOI

10.1109/ISICir.2011.6131894

Filename

6131894