A progammable baseband anti-alias filter for a passive-mixer-based, SAW-less, multi-band, multi-mode WEDGE transmitter

A progammable baseband anti-alias filter for a passive-mixer-based, SAW-less, multi-band, multi-mode WEDGE transmitter

A programmable baseband anti-alias filter (AAF) for a passive-mixer-based, 1.8V, SAW-less, multi-band, multi-mode WEDGE (WCDMA/HSUPA/EGPRS) cellular transmitter (TX) is described. This paper presents an AAF which results in ultra-low, -170dBc/Hz, receive-band noise, and enables the first single-mixe...

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Hauptverfasser: D'Souza, Sandeep, Chang, Frank, Pamarti, Sudhakar, Agarwal, Bipul, Zarei, Hossein, Sowlati, Tirdad, Berenguer, Roc
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Current measurement
GSM
Linearity
Mixers
Multiaccess communication
Noise
Spread spectrum communication
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Beschreibung
Zusammenfassung:A programmable baseband anti-alias filter (AAF) for a passive-mixer-based, 1.8V, SAW-less, multi-band, multi-mode WEDGE (WCDMA/HSUPA/EGPRS) cellular transmitter (TX) is described. This paper presents an AAF which results in ultra-low, -170dBc/Hz, receive-band noise, and enables the first single-mixer-based, multi-mode, SAW-less TX. By providing the noise and linearity performance only on-demand from system requirements, the presented AAF enables power savings of 14mW, or 34% of the total 41mW TX power. The AAF has been fabricated as part of a single-chip 0.13μm CMOS transceiver.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2011.5937599