A 3.4-mW 54.24-Mbps burst-mode injection-locked CMOS FSK transmitter

Zhiming Chen, Kuang-Wei Cheng, Yuanjin Zheng, Minkyu Je

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

A burst-mode frequency-shift keying (FSK) transmitter is presented using injection locking technique for wireless neural signal recording. An initial single current pulse is injected to the LC tank to start up the oscillator quickly and, more importantly, to set the phase of the free-running oscillation at known value. We prove that the free-running oscillation phase is linearly related to the logarithm of the initial current pulse magnitude. With the free-running oscillation phase fixed, a gated reference signal can be injected at the optimum timing to achieve fast settling and consequently realize the high-data-rate burst-mode FSK transmission. The duty cycle of the reference signal is controlled to be 33% to reduce the required reference signal power by 73% approximately. With burst-mode operation and direct modulation by changing the self-resonance frequency of the oscillator, low power consumption and high energy efficiency is achieved. The transmitter is implemented in a 0.18-μm CMOS technology. It achieves a maximum data rate of 54.24 Mbps while consuming 3.4 mW from a 1.8-V supply, resulting in the high energy efficiency of 62 pJ/bit.

Original languageEnglish
Title of host publication2011 Proceedings of Technical Papers
Subtitle of host publicationIEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011
Pages289-292
Number of pages4
DOIs
Publication statusPublished - 2011 Dec 1
Event7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 - Jeju, Korea, Republic of
Duration: 2011 Nov 142011 Nov 16

Publication series

Name2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011

Other

Other7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
CountryKorea, Republic of
CityJeju
Period11-11-1411-11-16

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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