A 2.4 GHz low-IF receiver for wideband WLAN in 0.6 mu m CMOS - Part II: Adaptive IF strip

Citation
F. Behbahani et al., A 2.4 GHz low-IF receiver for wideband WLAN in 0.6 mu m CMOS - Part II: Adaptive IF strip, MICROEL ENG, 54(1-2), 2000, pp. 73-83
Citations number
18
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
MICROELECTRONIC ENGINEERING
ISSN journal
01679317 → ACNP
Volume
54
Issue
1-2
Year of publication
2000
Pages
73 - 83
Database
ISI
SICI code
0167-9317(200012)54:1-2<73:A2GLRF>2.0.ZU;2-T
Abstract
An IF strip for a wireless receiver supports variable baud rate by changing tilter bandwidth. Sliding and step adaptive dynamic range are both used at IF to minimize the power consumption at the prevailing channel conditions. A combination of VGA and PGA is developed for 64-QAM. The circuit drains a n average of 16 mA from 3.3 V, with peak supply current of 73 mA. The diffe rential input noise is as low as 3.9 nV/root Hz, while maximum IIP3 is +22 dBm with respect to 100 ohms.