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WAN-0129

Part Number	WAN-0129
Manufacturer	Wolfson Microelectronics
Description	Decoupling and Layout Methodology
Published	Jan 30, 2007
Detailed Description	www.DataSheet4U.com w INTRODUCTION WAN-0129 Decoupling and Layout Methodology for Wolfson DACs, ADCs and CODECs This...
Datasheet	WAN-0129 PDF File

Overview

www.
DataSheet4U.
com w INTRODUCTION WAN-0129 Decoupling and Layout Methodology for Wolfson DACs, ADCs and CODECs This application note looks at the general decoupling and layout practice required for Wolfson converters to achieve maximum performance in a typical high-speed mixed-signal circuit.
APPLICATION Wolfson DACs, ADCs and CODECs have both digital and analogue interfaces.
It is important that noise is minimised to get the maximum converter performance.
In our datasheets there are a number of supply pins on each chip.
They are labelled according to their internal connection, not necessarily how they should be connected externally.
The datasheets show typical supply connections and decoupling arrangements and this report goes into further details.
GROUNDING First consider the grounding of the IC.
Ideally the circuit board will have a single continuous ground plane, with all ground pins connected to it.
The components will be located so that high-speed digital devices are kept ...

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