Datasheet > WM8948

WM8948

更新时间： 2024-09-17 12:23:27

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器控制器
页数	文件大小	规格书
189页	1691K
描述
Stereo Low-Power CODEC with Video Buffer and Touch Panel Controller

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WM8948 数据手册

WM8948

Stereo Low-Power CODEC with

Video Buffer and Touch Panel Controller

DESCRIPTION

FEATURES

•

Hi-fi audio CODEC

The WM8948 is a highly integrated low power hi-fi CODEC

designed for portable devices such as digital still cameras.

94dB SNR during ADC recording (‘A’ weighted)

96dB SNR during DAC playback (‘A’ weighted)

Up to 6 analogue inputs may be connected; a 2-channel digital

microphone interface is also provided. Flexible output mixing

options support single-ended and differential configurations,

with outputs derived from the digital audio paths or from

analogue bypass paths. Twin stereo outputs or stereo line and

mono BTL headphone/speaker drive may be supported.

•

6 analogue audio inputs

Integrated bias reference for electret microphones

2-channel digital microphone interface

Powerful digital mixing / DSP functions:

3D-stereo enhancement

5-notch filters

5-band equalizer (EQ)

ReTune™ parametric filter

Dynamic range control and noise gate

Low-pass/High-pass filters

Direct Form 1 (DF1) programmable digital filter

Flexible digital mixing and powerful DSP functions are available.

Programmable filters and other processes may be applied to

the ADC or DAC signal paths. The DSP functions include 3D-

stereo enhancement, 5 notch filters, 5-band EQ, dynamic range

control and the Wolfson ReTune™ feature.

•

Digital beep generator

4 analogue audio outputs

Stereo line output

The ReTune™ feature is a sophisticated digital filter that can

compensate for imperfect characteristics of the housing,

loudspeaker or microphone components in an application. The

ReTune™ algorithm can provide acoustic equalisation and

selective phase (delay) control of specific frequency bands.

Mono BTL headphone/speaker output driver

I2S digital audio interface - sample rates 8kHz to 48kHz

Frequency Locked Loop (FLL) frequency conversion / filter

Video buffer function

4-wire Touch Panel interface controller

Auxiliary ADC for DC measurement or battery monitoring

Integrated LDO low-noise voltage regulator

36-ball W-CSP package (2.96 x 3.06 x 0.7mm, 0.5mm pitch)

The WM8948 is controlled via a I2C or SPI interface. Additional

functions include 4-wire Touch Panel controller, Auxiliary ADC,

Digital beep generator, Video buffer, programmable GPIO

functions, Frequency Locked Loop (FLL) for flexible clocking

support and integrated LDO for low noise supply regulation.

APPLICATIONS

The WM8948 is supplied in 36-ball W-CSP package, ideal for

portable systems.

•

Digital Still Cameras (DSC)

Multimedia phones

Production Data, May 2011, Rev 4.1

WOLFSON MICROELECTRONICS plc

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

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与WM8948相关器件

型号	品牌	获取价格	描述	数据表
WM8948ECS/R	WOLFSON	获取价格	Stereo Low-Power CODEC with Video Buffer and Touch Panel Controller
WM8950	WOLFSON	获取价格	ADC WITH MICROPHONE INPUT AND PROGRAMMABLE DIGITAL FILTERS
WM8950CGEFL/RV	CIRRUS	获取价格	Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTI
WM8950CGEFL/V	CIRRUS	获取价格	Consumer Circuit, CMOS, PQCC24, 4 X 4 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTI
WM8950GEFL/RV	WOLFSON	获取价格	ADC WITH MICROPHONE INPUT AND PROGRAMMABLE DIGITAL FILTERS
WM8950GEFL/V	WOLFSON	获取价格	ADC WITH MICROPHONE INPUT AND PROGRAMMABLE DIGITAL FILTERS
WM8951L	WOLFSON	获取价格	STEREO ADC WITH MICROPHONE INPUT AND CLOCK GENERATOR
WM8951L_07	WOLFSON	获取价格	Stereo ADC with Microphone Input and Clock Generator
WM8951LGEFL	WOLFSON	获取价格	STEREO ADC WITH MICROPHONE INPUT AND CLOCK GENERATOR
WM8951LGEFL/R	WOLFSON	获取价格	STEREO ADC WITH MICROPHONE INPUT AND CLOCK GENERATOR

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