A passive mixer-first receiver front-end without external components for mobile TV applications

Author

Inyoung Choi ; Bumman Kim

Author_Institution

Dept. of Electr. Eng., POSTECH, Pohang, South Korea

fYear

2013

fDate

2-4 June 2013

Firstpage

145

Lastpage

148

Abstract

This paper describes a passive mixer-first receiver front-end (RFE) for mobile TV covering 100MHz to 800MHz without any external components. The proposed input matching technique with RC discharging circuit achieves a simple topology with a low noise. The out-of-band linearity is enhanced using the low pass filtering of sampling capacitor, delivering an outstanding out-of-band linearity. The out-of-band IIP3 and IIP2 are 7dBm and 36dBm, respectively at the maximum gain setting of 36dB. The third and fifth harmonic rejection ratios (HRR) are 49dB and 42dB, respectively. The power consumption is 23mW and the maximum NF is 3.6dB. The active area occupies 0.33mm² in 65nm CMOS technology.

Keywords

CMOS integrated circuits; UHF filters; UHF integrated circuits; UHF mixers; low-pass filters; mobile television; television receivers; CMOS technology; HRR; RC discharging circuit; RFE; frequency 100 MHz to 800 MHz; harmonic rejection ratio; input matching; low pass filtering; mobile TV; noise figure 3.6 dB; passive mixer-first receiver front end; power 23 mW; sampling capacitor; size 65 nm; Impedance matching; Linearity; Mixers; Mobile TV; Noise; Receivers; Switches; Direct conversion; front-end; harmonic mixing; impedance matching; low-pass filter; mobile TV; passive mixer; receiver;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2013 IEEE

Conference_Location

Seattle, WA

ISSN

1529-2517

Print_ISBN

978-1-4673-6059-3

Type

conf

DOI

10.1109/RFIC.2013.6569545

Filename

6569545