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A 0.8mm2 all-digital SAW-less polar transmitter in 65nm EDGE SoC

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18 Author(s)
Mehta, J. ; Texas Instrum., Dallas, TX, USA ; Staszewski, R.B. ; Eliezer, O. ; Rezeq, S.
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A 0.8 mm2 small-signal polar EDGE TX, part of a 65 nm CMOS SoC, incorporates a fully-digital implementation for the amplitude path meeting the strict emission mask without a SAW filter. Various RF impairments in the AM circuitry are digitally compensated, resulting in 2.5% rms EVM (high-band, HB) and over 8 dB margin with the close-in mask. The TX consumes 105 mA in HB at 1.2 V.

Published in:

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
RFIC Virtual Journal, IEEE

Date of Conference:

7-11 Feb. 2010