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TMS320C6474 Power Consumption Summary

Authored on: Oct 23, 2008 by Jon Bradley

Technical Paper / Application Report

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This document discusses the power consumption of the Texas Instruments TMS320C6474 digital signal processor (DSP). The power consumption on the TMS320C6474 device is highly application-dependent; therefore, a power spreadsheet that estimates power consumption is provided along with this application report. This spreadsheet can be used to model power consumption for user applications such as power supply design, thermal design, etc. To obtain good results from the spreadsheet, realistic usage parameters must be entered (see Section 3.1). The low-core voltage and other power design optimizations allow these devices to operate with industry-leading performance, while maintaining a low power-to-performance ratio.

The data presented in this document and in the accompanying spreadsheet were measured from devices at the maximum end of the power consumption for production devices. No production devices will have average power consumption that exceeds the spreadsheet values; therefore, the spreadsheet values may be used for board thermal analysis and power supply design as a maximum long-term average.

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