A 65 nm CMOS Wideband Radio Receiver with ΔΣ-Based A/D-Converting Channel-Select Filters

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This paper presents a wideband quadrature radio receiver employing ΔΣ-based A/D-converting channel-select filters (ADCSFs). The output of the quadrature passive mixer is directly connected to the input of the ADCSFs, where a first-order ΔΣ modulator is incorporated into a fourth-order Butterworth channel-select filter (CSF) to provide sufficient dynamic range for a cellular system. A design methodology for the ADCSF is derived, where the transfer function of the CSF is preserved. The 65 nm CMOS receiver has a frequency range of 0.6-3.0 GHz and can be programmed to support the 2xLTE20, LTE20, and LTE10 bandwidths. The receiver noise figure varies from 2.3 to 3.9 dB, with a current consumption in 2xLTE20 mode between 33 mA at 0.6 GHz and 44 mA at 3.0 GHz from a 1.2 V supply, including 10-21 mA for LO phase generation and distribution. The SNDR is 47-51 dB at an LO frequency of 1.8 GHz.


Enheter & grupper
Externa organisationer
  • Ericsson AB
  • Lund University

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kommunikationssystem


Sidor (från-till)1566-1578
Antal sidor13
TidskriftIEEE Journal of Solid-State Circuits
Utgåva nummer7
StatusPublished - 2016 jul 1
Peer review utfördJa