C0402C225M9PAC 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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C0402C225M9PAC

Ultra Low Power CODEC for Portable Audio Applications

Wolfson Microelectronics plc 

WM8903

BLOCK DIAGRAM

IN1L

IN2L

IN3L

DMIC_LR / GPIO1

DMIC_DAT / GPIO2

IN1R

IN2R

IN3R

MICBIAS

+

M

PGA

U

+ MIC

X

BOOST

-

Stereo

Digital

Mic

Interface

+

M

PGA

U

+ MIC

X

BOOST

-

VMID

Reference

DGND

DCVDD

DBVDD

WM8903

ADC

ADC

DYNAMIC

RANGE

CONTROL

VOLUME

DIGITAL

MONO MIX

DIGITAL

SIDE TONE

DIGITAL

FILTERS

VOLUME

DIGITAL

MONO MIX

DAC

DAC

CONTROL

INTERFACE

AUDIO

INTERFACE

FLL / CLOCK

CIRCUITRY

Production Data

CPGND CFB1 CFB2 CPVDD

LEFT MIXER

CHARGE PUMP

HPOUTL_VOL

VPOS

VNEG

(headphone / line output)

HPOUTL

HPGND

RIGHT MIXER

HPOUTR_VOL

LINEOUTL_VOL

HPOUTR

(headphone / line output)

LINEOUTL

LINEGND

LEFT SPKR MIXER

RIGHT SPKR MIXER

LINEOUTR_VOL

SPKR_VOL

SPKR_VOL

LINEOUTR

(differential line output)

LOP

LON

ROP

RON

w

PD, Rev 4.5, June 2012

2

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