A Low Power Adaptive Filter Using Dynamic Reduced 2's-Complement Representation
- Topics:
- Electrical and Electronic
- Tags:
- Broadband,
- Broadband Internet,
- Dissipation,
- DSP,
- Network Technology,
- Networking,
- Productivity,
- Telecommunications,
- University Of California
- Source:
- University of California
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Overview: This paper described the implementation and measurement result of a novel low power adaptive FIR filter. The proposed technique can be used in the implementation of digital signal processing applications where input signals have large dynamic ranges. A reduced representation for 2's complement numbers has been proposed to achieve low power dissipation while retaining the simplicity of 2's complement arithmetic. The key idea is to generate a signal representation dynamically according to the signal magnitude. The proposed technique has been implemented in an adaptive filter chip for broadband communication applications. A power dissipation saving of approximately 32% has been measured in the test chip.
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Format: PDF | Size: 475KB | Date: Mar 2002 | Pages: 4
