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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chia-Ming Liu Hutchens, C. |
| Copyright Year | 2002 |
| Description | Author affiliation: Oklahoma State Univ., Stillwater, OK, USA (Chia-Ming Liu; Hutchens, C.) |
| Abstract | This paper reports on the fabrication of a low power decimation filter with a two-path architecture. The filter reduces the power consumption by better than 50% over previous work. Instead of decimating data after filtering, the reported technique takes advantage of binary coefficients and performs data division before filtering. Based on the two-path architecture, the adder clock rate as well as the number of additions is reduced. As a result, overall power efficiency is increased by a factor of better than two. Power is further reduced by implementing the design on Silicon-On-Sapphire (SOS) process with the reduction of drain-to-body capacitors. The presented two-path filter has greater attenuation and a narrower transition band than an equivalent implementation of a Sinc filter although with somewhat greater complexity. The selected approach of FIR architecture with its linear phase and excellent delay power product is well suited for communications /spl Delta/-/spl Sigma/ ADCs. The 64 times decimation filter was implemented in Peregrine SOS with a 4-bit input and an 18-bit output data width. The filter was functionally tested and operational up to 23 MHz or 0.36 Msps with a power dissipation of 8.3n W/Hz. Powered at 1.5 V and operating at 10 Msps, the filter consumes 1.5 /spl mu/W at standby and 85 mW at operation. |
| Sponsorship | IEEE Circuits & Syst. Soc. School of Electr. & Comput. Eng. at Oklahoma State Univ |
| File Size | 206959 |
| File Format | |
| ISBN | 0780375238 |
| DOI | 10.1109/MWSCAS.2002.1187173 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-08-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Power filters Finite impulse response filter Filtering Fabrication Energy consumption Clocks Capacitors Attenuation Delay Testing |
| Content Type | Text |
| Resource Type | Article |
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