Referenced Items are not available for this document.
A hearing-aid system with RF connection between both ear-pieces is described and its transceiver is introduced. A suitable 200-MHz RF front end has been implemented in a 0.8-/spl mu/m BiCMOS technology. Low power consumption and area constraint were key requirements. The chip comprises a low noise amplifier (LNA), a single balanced mixer, a varactor tuned LC local oscillator with buffer and a 16/17 dual-modulus prescaler. The LNA has a measured gain of 17.5 dB at 200 MHz. The conversion g/sub m/ of the mixer is 1.88 mS. The overall voltage gain and noise figure are 26 dB and 5.2 dB, respectively. The voltage-controlled oscillator's (VCO's) phase noise is -104.7 dBc/Hz at an offset of 24 kHz.
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:35
,
Issue:
7
)
Date of Publication: July 2000
- Page(s):
- 977 - 986
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 6660187
- Digital Object Identifier :
- 10.1109/4.848206
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- July 2000
- Sponsored by :
- IEEE Solid-State Circuits Society
About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.
