Datasheet > WM8751L

WM8751L

更新时间： 2024-11-22 22:41:27

品牌	Logo	应用领域
欧胜 - WOLFSON		便携式
页数	文件大小	规格书
41页	354K
描述
STEREO DAC FOR PORTABLE AUDIO APPLICATIONS

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中文翻译

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WM8751L 数据手册

WM8751L

STEREO DAC FOR PORTABLE AUDIO APPLICATIONS

DESCRIPTION

FEATURES

•

DAC SNR 98dB, THD -95dB (‘A’ weighted @ 48kHz, 3.3V)

On-chip 400mW BTL Speaker Driver (mono)

On-chip Headphone Driver

The WM8751L is a low power, high qualitystereo DAC with

integrated headphone and loudspeaker amplifiers, designed

to reduce external component requirements in portable digital

audio applications.

40mW output power on 16Ω / 3.3V

THD –80dB at 20mW, SNR 90dB with 16Ω load

The on-chip headphone amplifiers can deliver 40mW into a

16Ω load. Advanced on-chip digital signal processing

performs bass and treble tone control.

•

Stereo and Mono Line-in mix into DAC output

SeparatelyMixed Stereo and Mono Outputs

Digital Tone Control and Bass Boost

Low Power

The WM8751L can operate as a master or a slave, with

various master clock frequencies including 12 or 24MHz for

USB devices or standard 256f_srates like 12.288MHz and

24.576MHz. Different audio sample rates such as 96kHz,

48kHz, 44.1kHz are generated directlyfrom the master clock

without the need for an external PLL.

Low SupplyVoltages

Analogue 1.8V to 3.6V

Digital core: 1.42V to 3.6V

Digital I/O: 1.42V to 3.6V

•

256fs / 384fs or USB master clock rates: 12MHz, 24MHz

Audio sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,

48, 88.2, 96kHz generated internallyfrom master clock

32-pin QFN package, 5x5x0.9mm size, 0.5mm lead pitch

The WM8751L operates on supplyvoltages from 1.8V up to

3.6V, although the digital core can operate on a separate

supplydown to 1.42V, saving power. Different sections of the

chip can also be powered down under software control.

•

APPLICATIONS

The WM8751L is supplied in a verysmall and thin 5x5mm

QFN package, ideal for use in hand-held and portable

systems.

•

Digital Audio Player

MP3 Phone

Minidisc Player

BLOCK DIAGRAM

DBVDD DCVDD

DGND

HPGND

HPVDD

MONOOUT

-1

OUT3

DIFF. IN

LI2LO

WM8751L

ROUT1

VREF

LEFT

MIXER

LD2LO

RD2LO

LD2MO

RD2MO

LD2RO

RD2RO

LOUT1

CSB

SDIN

LOUT1VOL

MONOVOL

MI2LO

LI2MO

DAC

CONTROL

INTERFACE

MONO

MIXER

DIGITAL

FILTERS

SCLK

MODE

MONOOUT

TONE

CONTROL

RI2MO

MI2RO

BCLK

DACLRC

DACDAT

DIGITAL

AUDIO

INTERFACE

RIGHT

MIXER

ROUT1

LOUT2

ROUT1VOL

LOUT2VOL

RI2RO

MCLK

Loudspeaker

L - (-R)

= L+R

VREF

ROUT2

INV

-1

50K

ROUT2

ROUT2VOL

HPDETECT

WOLFSON MICROELECTRONICS PLC

www.wolfsonmicro.com

Product Preview, May2003, Rev 1.42

12 3 4 5 6 7...41

中文翻译

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与WM8751L相关器件

型号	品牌	获取价格	描述	数据表
WM8751LEFL	WOLFSON	获取价格	STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WM8751LSEFL	WOLFSON	获取价格	STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WM8751LSEFR	WOLFSON	获取价格	STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WM8753	WOLFSON	获取价格	HI FI AND TELEPHONY DUAL CODEC
WM8753_05	WOLFSON	获取价格	Hi-Fi and Telephony Dual CODEC
WM8753L	WOLFSON	获取价格	HI FI AND TELEPHONY DUAL CODEC
WM8753LEB/RV	WOLFSON	获取价格	HI FI AND TELEPHONY DUAL CODEC
WM8753LEB/V	WOLFSON	获取价格	HI FI AND TELEPHONY DUAL CODEC
WM8753LEFL/V	CIRRUS	获取价格	PCM Codec, 1-Func, CMOS, PQCC48, 7 X 7 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MO-220V
WM8753LGEB/RV	WOLFSON	获取价格	Hi-Fi and Telephony Dual CODEC

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