Please use this identifier to cite or link to this item:
Title: A 2.4 GHz ZigBee Receiver Exploiting an RF-to-BB-Current-Reuse Blixer + Hybrid Filter Topology in 65 nm CMOS
Authors: Lin, Zhi cheng
Mak, Pui In (麥沛然)
Martins, Rui Paulo Da Silva
Issue Date: 1-Jun-2014
Publisher: IEEE Computer Society
Citation: IEEE Journal of Solid-State Circuits, Jun 2014, Vol 49, Issue 6, p. 1333 - 1344
Abstract: A 2.4 GHz ZigBee receiver unifying a balun-LNA-I/Q-mixer (Blixer) and a baseband (BB) hybrid filter in one cell is fabricated in 65 nm CMOS. Without any external components, wideband input matching and passive pre-gain are concurrently achieved via co-optimizing an integrated low-Q network with a balun-LNA. The latter also features active-gain boosting and partial-noise canceling to enhance the gain and noise figure (NF). Above the balun-LNA are I/Q double-balanced mixers driven by a 4-phase 25% LO for downconversion and gain-phase balancing. The generated BB currents are immediately filtered by an IF-noise-shaping current-mode Biquad and a complex-pole load, offering first-order image rejection and third-order channel selection directly atop the Blixer. Together with other BB and LO circuitries, the receiver measures 8.5 dB NF, 57 dB gain and -6-dBm IIP3out_band at 1.7 mW power and 0.24 mm2 die size. The S11-bandwidth (<-10 dB) covers 2.25 to 3.55 GHz being robust to packaging variations. Most performance metrics compare favorably with the state-of-the-art.
ISSN: 0018-9200
Keywords: Balun low-noise amplifier (Balun-LNA)
Current reuse
Hybrid filter
Local oscillator (LO)
Noise figure (NF)
Output balancing
Polyphase filter (PPF)
RC-CR network
voltage-controlled oscillator (VCO)
Access: View full-text via DOI

Files in This Item:
File Description SizeFormat 
11704_0_ZBRX2_JSSC14.pdf2.93 MBAdobe PDFView/Open
Appears in Collections:OTHERS Journal Articles

Items in UMIR are protected by copyright, with all rights reserved, unless otherwise indicated.