Title :
A 34dB SNDR instantaneously-companding baseband SC filter for 802.11a/g WLAN receivers
Author :
Maheshwari, V. ; Serdijn, Wouter A. ; Long, John R. ; Pekarik, John J.
Author_Institution :
Delft Univ. of Technol., Delft, Netherlands
Abstract :
To handle peak-to-average power ratio in 802.11a/g WLAN RX baseband, a 5th-order, 10.5 MHz cut-off frequency, instantaneously companding SC LPF is fabricated in a 0.13 ¿m CMOS process. It occupies 2.2 mm2 active chip area and consumes 53 mW with a DR of 79 dB over an SNDR of 34 dB and EVMrms<3.8%, saving 3.3× power and 1.5× chip area as compared to the non-companding case.
Keywords :
radio receivers; switched capacitor filters; wireless LAN; 0.13 ¿m CMOS process; 802.11a/g WLAN receivers; SNDR instantaneously-companding baseband SC filter; cut-off frequency; frequency 10.5 MHz; gain 34 dB; gain 79 dB; peak-to-average power ratio; power 53 mW; Active filters; Baseband; Capacitance; Clocks; OFDM; Signal processing; Switches; Testing; Voltage; Wireless LAN;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5434035
