A 184 mW fully integrated DVB-H tuner with a linearized variable gain LNA and quadrature mixers using cross-coupled transconductor
In: 2006 Symposium on VLSI circuitsIEEE journal of solid-state circuits 42(4):862-871; Jg. 42 (2007) 4, S. 862-871
Online
Konferenz
- print, 13 ref
Zugriff:
A fully integrated direct conversion DVB-H tuner is realized in a 0.5-μm SiGe BiCMOS technology. To meet the stringent linearity requirement while keeping low power consumption, novel linearization techniques for a variable-gain low-noise amplifier (VG-LNA) and a mixer are proposed. The proposed linearized VG-LNA has a variable gain range of over 50 dB, noise figure of less than 2.6 dB over the frequency range from 200 to 1000 MHz, and IIP3 of more than -10 dBm at a current consumption of 2.1 mA. The quadrature mixer with the proposed linearization technique achieves OIP3 of more than 25 dBm at a current consumption of 5 mA. In addition, a new offset-cancel feedback is introduced for the baseband block of a direct conversion receiver, which keeps the high-pass cutoff frequency independent of the baseband VGA gain. The fabricated tuner IC satisfies all the DVB-H requirements at a power consumption of 184 mW.
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A 184 mW fully integrated DVB-H tuner with a linearized variable gain LNA and quadrature mixers using cross-coupled transconductor
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Autor/in / Beteiligte Person: | IIZUKA, Kunihiko ; KAWAMURA, Hiroshi ; F UJIWARA, Takanobu ; KAGOSHIMA, Kanetomo ; KAWAMA, Shuichi ; KIJIMA, H Iroshi ; KOUTANI, Masato ; TOYOYAMA, Shinji ; SAKUNO, Keiichi |
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Quelle: | 2006 Symposium on VLSI circuitsIEEE journal of solid-state circuits 42(4):862-871; Jg. 42 (2007) 4, S. 862-871 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2007 |
Medientyp: | Konferenz |
Umfang: | print, 13 ref |
ISSN: | 0018-9200 (print) |
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