WM8521H9GED/RV datasheet, PDF - EEWORLD Datasheet

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WM8521H9GED/RV: DescriptionStereo DAC with Integrated Output Stage for 2Vrms LINE OUT; File Size253KB，20 Pages; ManufacturerWolfson Microelectronics plc (Cirrus Logic); Websitehttp://www.wolfson.co.uk

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WM8521H9GED/RV Overview

Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT

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DESCRIPTION

The WM8521 is a 192kHz stereo DAC with an integrated output

op-amp stage, designed to generate a 2.0Vrms output signal

directly, so reducing external component requirements in digital

audio applications.

WM8521 comes into two variants WM8521HC and WM8521H9

which offers different line drive output capabilities. WM8521HC

outputs 2Vrms at 12V supply, while WM8521H9 outputs

2.0Vrms at 9V supply. WM8521HC/H9 are designed for cost

sensitive consumer digital audio applications requiring 2Vrms

line output.

A 24-bit multi-bit sigma delta DAC is used with oversampling

digital interpolation filters. Digital audio input word lengths from

16-32 bits and sampling rates from 8kHz to 192kHz are

supported.

The audio interface supports I S, Right Justified and DSP digital

audio formats.

The devices are controlled via a hardware interface which

provides access to features including de-emphasis, mute and

data formats. These devices are pin equivalent and are

available in a 14-lead SOIC package.

WM8521

Stereo DAC with Integrated Output Stage

for 2Vrms LINE OUT

FEATURES

•

Audio Performance

- DAC SNR 98dB (‘A’ weighted @ 48kHz)

- THD -81dB (‘A’ weighted @ 48kHz)

DAC Sampling Frequency: 8kHz – 192kHz

Pin Selectable Audio Data Interface Format

- I

S, 16-bit Right Justified or 16bit DSP

2.0 Vrms output at 12V or 9V supply

7.6V to 13.2V Analogue, 2.7V to 3.6 Digital Supply

14-lead SOIC Package

APPLICATIONS

•

Consumer digital audio applications requiring 2 Vrms output

- DVD Players

- Digital TV

- Digital Set Top Boxes

- A/V Receivers

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

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Production Data, August 2006, Rev 4.1

2006

Wolfson Microelectronics plc

WM8521

TABLE OF CONTENTS

Production Data

DESCRIPTION .......................................................................................................1

FEATURES.............................................................................................................1

APPLICATIONS .....................................................................................................1

BLOCK DIAGRAM .................................................................................................1

TABLE OF CONTENTS .........................................................................................2

PIN CONFIGURATION...........................................................................................3

ORDERING INFORMATION ..................................................................................3

PIN DESCRIPTION ................................................................................................4

ABSOLUTE MAXIMUM RATINGS.........................................................................5

DC ELECTRICAL CHARACTERISTICS ................................................................6

ELECTRICAL CHARACTERISTICS ......................................................................6

TERMINOLOGY............................................................................................................. 7

MASTER CLOCK TIMING.............................................................................................. 8

DIGITAL AUDIO INTERFACE........................................................................................ 8

DEVICE DESCRIPTION.........................................................................................9

GENERAL INTRODUCTION.......................................................................................... 9

DAC CIRCUIT DESCRIPTION....................................................................................... 9

CLOCKING SCHEMES ................................................................................................ 10

DIGITAL AUDIO INTERFACE...................................................................................... 10

AUDIO DATA SAMPLING RATES ............................................................................... 12

HARDWARE CONTROL MODES................................................................................ 13

DIGITAL FILTER CHARACTERISTICS ....................................................................... 15

DAC FILTER RESPONSES ......................................................................................... 15

DIGITAL DE-EMPHASIS CHARACTERISTICS ........................................................... 16

APPLICATIONS INFORMATION .........................................................................17

RECOMMENDED EXTERNAL COMPONENTS........................................................... 17

RECOMMENDED EXTERNAL COMPONENTS VALUES............................................ 17

RECOMMENDED ANALOGUE LOW PASS FILTER ................................................... 18

PCB LAYOUT RECOMMENDATIONS......................................................................... 18

PACKAGE DRAWING..........................................................................................19

IMPORTANT NOTICE ..........................................................................................20

ADDRESS:................................................................................................................... 20

PD Rev 4.1 August 2006

WM8521H9GED/RV Related Products

	WM8521H9GED/RV	WM8521HCGED/RV	WM8521HCGED/V	WM8521_06	WM8521H9GED/V
Description	Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT	Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT	Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT	Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT	Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT

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