Datasheet > WM8955BLGECO/RV

WM8955BLGECO/RV

更新时间： 2024-11-09 03:39:11

品牌	Logo	应用领域
欧胜 - WOLFSON		便携式
页数	文件大小	规格书
44页	668K
描述
Stereo DAC For Portable Audio Applications

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技术参数
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WM8955BLGECO/RV 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.59	Is Samacsys：	N
Base Number Matches：	1

WM8955BLGECO/RV 数据手册

WM8955BL

Stereo DAC For Portable Audio Applications

DESCRIPTION

FEATURES

•

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

On-chip Headphone Driver

The WM8955BL is a low power, high quality stereo DAC with

integrated headphone and earpiece 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

•

On-chip BTL Earpiece Driver (mono)

Stereo and Mono Line-in mix into DAC output

Separately Mixed Stereo and Mono Outputs

Digital Tone Control and Bass Boost

Low Power

The on-chip headphone amplifiers can deliver 40mW into a 16Ω

load. Advanced on-chip digital signal processing performs bass

and treble tone control.

The WM8955BL 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

28-lead QFN package, 4x4x0.75mm size

Software compatible with WM8750L, WM8751L, WM8955L

The WM8955BL 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.

•

The WM8955BL is supplied in a very small and thin 4x4mm

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, February 2007, Rev 4.1

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

12 3 4 5 6 7...44

中文翻译

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与WM8955BLGECO/RV相关器件

型号	品牌	获取价格	描述	数据表
WM8955BLGECO/V	WOLFSON	获取价格	Stereo DAC For Portable Audio Applications
WM8955L	WOLFSON	获取价格	STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WM8955LEFL	WOLFSON	获取价格	STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WM8955LSEFL	WOLFSON	获取价格	Stereo DAC For Portable Audio Applications
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

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