CDBWM8983-M-1 datasheet, PDF - EEWORLD Datasheet

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CDBWM8983-M-1: DescriptionEVAL BD - WM8983 MINI EVAL BOARD; CategoryDevelopment board/suite/development tools; File Size2MB，129 Pages; ManufacturerCirrus Logic; Websitehttp://www.cirrus.com; Environmental Compliance

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EVAL BD - WM8983 MINI EVAL BOARD

CDBWM8983-M-1 Parametric

Parameter Name	Attribute value
type	Audio
Function	CODEC
Embedded	-
IC/parts used	WM8983
Main attributes	-
What's included	plate
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WM8983

Mobile Multimedia CODEC with 1W Speaker Driver

DESCRIPTION

The WM8983 is a low power, high quality stereo CODEC

designed for portable multimedia applications. Highly flexible

analogue mixing functions enable new application features,

combining hi-fi quality audio with voice communication.

The device integrates preamps for stereo differential mics,

and includes drivers for speaker, headphone and differential

or stereo line output. External component requirements are

reduced as no separate microphone or headphone amplifiers

are required.

Advanced on-chip digital signal processing includes a 5-band

equaliser, a mixed signal Automatic Level Control for the

microphone or line input through the ADC as well as a purely

digital limiter function for record or playback. A programmable

high pass filter in the ADC path is provided for wind noise

reduction and an IIR with programmable coefficients can be

used as a notch filter to suppress fixed-frequency noise.

The WM8983 digital audio interface can operate in master or

slave mode, while an integrated PLL supports flexible clocking

schemes. A-law and

-law

companding are fully supported.

The WM8983 operates at analogue supply voltages from 2.5V

to 3.3V, although the digital core can operate at voltages

down to 1.71V to save power. Speaker supplies can operate

up to 5V for increased speaker output power. Additional

power management control enables individual sections of the

chip to be powered down under software control.

FEATURES

Stereo CODEC:



DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)



ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)



Speaker driver (1W into 8 BTL with 5V supply)

- SNR 90dB

- PSRR 80dB



Headphone driver with ‘capless’ option

- 40mW/channel output power into 16 / 3.3V AVDD2



Pop and click suppression

Mic Preamps:



Stereo Differential or mono microphone Interfaces



Programmable preamp gain



Pseudo differential inputs with common mode rejection



Programmable ALC / Noise Gate in ADC path



Low-noise bias supplied for electret microphones

Other Features:



Enhanced 3-D function for improved stereo separation



Highly flexible mixing functions



5-band equaliser (ADC or DAC path)



ADC Programmable high pass filter (wind noise reduction)



ADC Programmable IIR notch filter



Aux inputs for stereo analog input signals or ‘beep’



PLL supporting various clocks between 8MHz-50MHz



Sample rates supported (kHz): 8, 11.025, 16, 12, 16, 22.05,

24, 32, 44.1, 48



2.5V to 3.6V analogue supplies



1.71V to 3.6V digital supplies



2.5V to 5.5V speaker supplies



5x5mm 32-lead QFN package

APPLICATIONS



Multimedia mobile phones

http://www.cirrus.com



Cirrus Logic, Inc., 2005–2016

Rev 4.6

AUG ‘16

WM8983

TABLE OF CONTENTS

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

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

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

BLOCK DIAGRAM ......................................................................................................... 2

TABLE OF CONTENTS .................................................................................................. 3

PIN CONFIGURATION ................................................................................................... 5

ORDERING INFORMATION ........................................................................................... 5

PIN DESCRIPTION ......................................................................................................... 6

ABSOLUTE MAXIMUM RATINGS ................................................................................. 7

RECOMMENDED OPERATING CONDITIONS .............................................................. 7

ELECTRICAL CHARACTERISTICS .............................................................................. 8

TERMINOLOGY ..................................................................................................................... 14

TYPICAL PERFORMANCE .......................................................................................... 15

SPEAKER OUTPUT THD VERSUS POWER ......................................................................... 15

TYPICAL POWER CONSUMPTION ...................................................................................... 17

AUDIO PATHS OVERVIEW ......................................................................................... 18

SIGNAL TIMING REQUIREMENTS ............................................................................. 19

SYSTEM CLOCK TIMING ...................................................................................................... 19

AUDIO INTERFACE TIMING – MASTER MODE ................................................................... 19

AUDIO INTERFACE TIMING – SLAVE MODE....................................................................... 20

CONTROL INTERFACE TIMING – 3-WIRE MODE................................................................ 21

CONTROL INTERFACE TIMING – 2-WIRE MODE................................................................ 22

INTERNAL POWER ON RESET CIRCUIT ................................................................... 23

RECOMMENDED CONTROL SEQUENCES ............................................................... 25

POWER UP/DOWN SEQUENCE ........................................................................................... 25

LOUT1/ROUT1 ENABLE SEQUENCE ................................................................................... 28

DEVICE DESCRIPTION ............................................................................................... 29

INTRODUCTION .................................................................................................................... 29

INPUT SIGNAL PATH ............................................................................................................ 31

ANALOGUE TO DIGITAL CONVERTER (ADC) ..................................................................... 40

INPUT LIMITER / AUTOMATIC LEVEL CONTROL (ALC) ..................................................... 44

OUTPUT SIGNAL PATH ........................................................................................................ 57

ANALOGUE OUTPUTS ......................................................................................................... 64

DIGITAL AUDIO INTERFACES .............................................................................................. 82

AUDIO SAMPLE RATES ........................................................................................................ 87

MASTER CLOCK AND PHASE LOCKED LOOP (PLL) .......................................................... 87

COMPANDING....................................................................................................................... 90

GENERAL PURPOSE INPUT/OUTPUT ................................................................................. 92

OUTPUT SWITCHING (JACK DETECT) ................................................................................ 93

CONTROL INTERFACE ......................................................................................................... 94

RESETTING THE CHIP ......................................................................................................... 95

POWER SUPPLIES ............................................................................................................... 95

POWER MANAGEMENT ....................................................................................................... 96

REGISTER MAP ........................................................................................................... 97

DIGITAL FILTER CHARACTERISTICS ..................................................................... 118

TERMINOLOGY ................................................................................................................... 118

DAC FILTER RESPONSES ................................................................................................. 119

Rev 4.6

CDBWM8983-M-1 Related Products

	CDBWM8983-M-1	WM8983GEFL/V	CDKWM8983-S-1	WM8983GEFL/RV
Description	EVAL BD - WM8983 MINI EVAL BOARD	Interface - CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver	KIT - WM8983 KIT CDB6160 MB DC	IC CODEC STER 1W SPKR DVR 32QFN

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