Datasheet > WM8955LSEFL

WM8955LSEFL

更新时间： 2024-11-09 03:54:39

品牌	Logo	应用领域
欧胜 - WOLFSON		商用集成电路便携式
页数	文件大小	规格书
46页	629K
描述
Stereo DAC For Portable Audio Applications

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技术参数
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WM8955LSEFL 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
Reach Compliance Code：	unknown	风险等级：	5.59
Is Samacsys：	N	湿度敏感等级：	1
Base Number Matches：	1

WM8955LSEFL 数据手册

WM8955L

Stereo DAC For Portable Audio Applications

DESCRIPTION

FEATURES

•

DAC SNR 98dB, THD -86dB (‘A’ weighted @ 48kHz, 3.3V)

On-chip 400mW BTL Speaker Driver (mono)

On-chip Headphone Driver

The WM8955L is a low power, high quality stereo 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

SNR 96dB, THD –79dB at 20mW 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

Separately Mixed Stereo and Mono Outputs

Digital Tone Control and Bass Boost

Low Power

The WM8955L can operate as a master or a slave, and

includes an on-chip PLL. It can use most master clock

frequencies commonly found in portable systems, including

USB, GSM, CDMA or PDC clocks, or standard 256f_sclock

rates. Different audio sample rates such as 48kHz, 44.1kHz,

8kHz and many others are supported.

Down to 7mW for stereo playback (1.8V / 1.5V supplies)

10µW Shutdown Mode

•

Low Supply Voltages

Analogue and Digital I/O: 1.8V to 3.6V

Digital core: 1.42V to 3.6V

•

Master clocks supported: GSM, CDMA, PDC, USB or

standard audio clocks

Audio sample rates supported: 8, 11.025, 12, 16, 22.05, 24,

32, 44.1, 48, 88.2, 96kHz

The WM8955L operates on supply voltages from 1.8V up to

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

down to 1.42V, saving power. Different sections of the chip can

also be powered down under software control.

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

The WM8955L is supplied in a very small and thin 5x5mm QFN

package, ideal for use in hand-held and portable systems.

APPLICATIONS

•

Smartphone / Multimedia Phone

Digital Audio Player

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

Production Data, March 2006, Rev 4.2

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

12 3 4 5 6 7...46

中文翻译

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与WM8955LSEFL相关器件

型号	品牌	获取价格	描述	数据表
WM8955LSEFL/R	WOLFSON	获取价格	Stereo DAC For Portable Audio Applications
WM8956	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956_06	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956_07	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956_11	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956CGEFL/RV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956CGEFL/V	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL/RV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL/V	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

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