Input Dynamic Range Extension of the BelaSigna® 300 Series APPLICATION NOTE
■This application note describes the functioning of the BelaSigna 300 input dynamic range extension (IDRX)feature. The goal of this document is to allow our customers to use this feature in their applications. This document describes the functioning of the IDRX, as well as the configuration parameters related to the IDRX.
■In most hearing instruments, the dynamic range of the analog−to−digital (AD) converters is typically 90 dB. For some high precision sound processing, this is not sufficient.This is the reason why ON Semiconductor developed theIDRX concept on the BelaSigna 300 DSP series.
■Through the IDRX technology, a pair of 90 dB BelaSigna 300 AD converters can combine to provide an extended 110 dB dynamic range. Combined with a 24−bit DSP architecture, the BelaSigna 300 provides a high precision sound quality.
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BelaSigna 300 、 BelaSigna 300 series 、 BelaSigna 300 AD 、 BelaSigna 300 DSP |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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February, 2009 |
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Rev. 0 |
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AND8388/D |
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167 KB |
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