Datasheet > WM8903

WM8903

更新时间： 2024-09-17 12:26:15

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器便携式
页数	文件大小	规格书
178页	1387K
描述
Ultra Low Power CODEC for Portable Audio Applications

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

WM8903 数据手册

WM8903

Ultra Low Power CODEC for Portable Audio Applications

DESCRIPTION

FEATURES



4.5mW power consumption for DAC to headphone

playback

The WM8903 is a high performance ultra-low power stereo

CODEC optimised for portable audio applications.



DAC SNR 96dB typical, THD -86dB typical

ADC SNR 92dB typical, THD -80dB typical

The device features stereo ground-referenced headphone

amplifiers using the Wolfson ‘Class W’ amplifier techniques -

incorporating an innovative dual-mode charge pump

architecture - to optimise efficiency and power consumption

during playback. The ground-referenced outputs eliminate

headphone coupling capacitors. Both headphone and line

outputs include common mode feedback paths to reject

ground noise.



Control sequencer for pop minimised start-up and shut-

down

Single register write for default start-up sequence



Integrated FLL provides all necessary clocks

Control sequences for audio path setup can be pre-loaded

and executed by an integrated sequencer to reduce

software driver development and eliminate pops and clicks

via Wolfson’s SilentSwitch™ technology.

Self-clocking modes allow processor to sleep

All standard sample rates from 8kHz to 96kHz



Stereo digital microphone input

The analogue input stage can be configured for single

ended or differential inputs. Up to 3 stereo microphone or

line inputs may be connected. The input impedance is

constant with PGA gain setting.

3 single ended inputs per stereo channel

1 fully differential mic / line input per stereo channel



Digital Dynamic Range Controller (compressor / limiter)

Digital sidetone mixing

A stereo digital microphone interface is provided, which can

also be mixed with the mic/line signals at the output mixers.

A dynamic range controller provides compression and level

control to support a wide range of portable recording

applications. Anti-clip and quick release features offer good

performance in the presence of loud impulsive noises.



Ground-referenced headphone driver

Ground-referenced line outputs

Stereo differential line driver for direct interface to WM9001

speaker driver

Common audio sampling frequencies are supported from a

range of external clocks, either directly or generated via the

Frequency Locked Loop (FLL).



40-pin QFN package (5x5mm)

The WM8903 can operate directly from a single 1.8V

switched supply. For optimal power consumption, the digital

core can be operated from a 1.0V supply.

APPLICATIONS



Portable multimedia players

Multimedia handsets

Handheld gaming

WOLFSON MICROELECTRONICS plc

Production Data, June 2012, Rev 4.5

To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews

12 3 4 5 6 7...178

中文翻译

下载PDF

与WM8903相关器件

型号	品牌	获取价格	描述	数据表
WM8903CLGEFK	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8903CLGEFK/R	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8904	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8904	CIRRUS	获取价格	用于便携式音频应用的超低功耗编解码器
WM8904CGEFL/RV	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8904CGEFL/V	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8904ECS/R	WOLFSON	获取价格	Ultra Low Power CODEC for Portable Audio Applications
WM8904GEFL/V	CIRRUS	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQCC32, 4 X 4 MM, 0.75 MM HEIGHT, 0.40 MM PITCH, LEAD F
WM8912	WOLFSON	获取价格	Ultra Low Power DAC with Headphone Driver for Portable Audio Applications
WM8912CGEFL/RV	CIRRUS	获取价格	Consumer Circuit, CMOS, PQCC32, 4 X 4 MM, 0.75 MM HEIGHT, 0.40 MM PITCH, LEAD FREE, PLASTI

与WM8903相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

18
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

16
SL74HC10N：高性能三输入与非门解析
2024-09-03

93
AIC1781A 电池充电控制器深度解析
2024-09-03

83

产品中心

服务支持

精选活动

关于我们

帮助中心

WM8903

WM8903 数据手册

与WM8903相关器件

与WM8903相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

WM8903

WM8903 数据手册

与WM8903相关器件

与WM8903相关文章

您还可以找

您在本页遇到什么问题？