A bit-serial CMOS digital IF-filter for mobile radio using an on-chip clock

Summary, in English

A chip for digital intermediate frequency filtering is introduced. The filter is intended move most of the analog intermediate frequency filtering to the digital domain in systems like the American mobile radio system (IS-54). It is a wave digital lattice filter realized with bit-serial arithmetic. Furthermore, a technique for local clocks on chip is presented. The method is based on a ring oscillator and a cycle counter which is controlled from outside the chip. A 0.8 micron technology custom test chip has been fabricated and tested.

• Author: Peter Nilsson; Mats Torkelson; Kent Palmkvist; Mark Vesterbacka; Lars Wanhammar
• Editor: Christoph G. Günther
• Department/s: Department of Electrical and Information Technology
• Publishing year: 1994
• Language: English
• Pages: 510-521
• Publication/Series: Mobile communications advanced systems and components / Lecture notes in Computer Science
• Volume: 783
• Links: http://dx.doi.org/10.1007/3-540-57856-0_46
• Document type: Conference paper
• Publisher: Springer
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: 1994 International Zurich Seminar on Digital Communications, March 8-11, 1994
• Conference date: 1994-03-08 - 1994-03-11
• Conference place: Zürich, Switzerland
• Status: Published
• Research group: Elektronikkonstruktion
• ISBN/ISSN/Other: ISSN: 0302-9743; ISSN: 1611-3349; ISBN: 3-540-57856-0