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WM8983GEFL/RV

更新时间: 2024-11-07 03:10:43
品牌 Logo 应用领域
欧胜 - WOLFSON 解码器驱动器编解码器
页数 文件大小 规格书
123页 1433K
描述
Mobile Multimedia CODEC with 1W Speaker Driver

WM8983GEFL/RV 技术参数

生命周期:TransferredReach Compliance Code:unknown
风险等级:5.62Base Number Matches:1

WM8983GEFL/RV 数据手册

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WM8983  
w
Mobile Multimedia CODEC with 1W Speaker Driver  
DESCRIPTION  
FEATURES  
Stereo CODEC:  
The WM8983 is a low power, high quality stereo CODEC  
designed for portable multimedia applications. Highly flexible  
analogue mixing functions enable new application features,  
combining hi-fi quality audio with voice communication.  
DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)  
ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)  
Speaker driver (1W into 8BTL with 5V supply)  
SNR 90dB  
The device integrates preamps for stereo differential mics, and  
includes drivers for speaker, headphone and differential or stereo  
line output. External component requirements are reduced as no  
separate microphone or headphone amplifiers are required.  
PSRR 80dB  
Headphone driver with ‘capless’ option  
40mW/channel output power into 16/ 3.3V AVDD2  
Pop and click suppression  
Advanced on-chip digital signal processing includes a 5-band  
Mic Preamps:  
equaliser,  
a mixed signal Automatic Level Control for the  
Stereo Differential or mono microphone Interfaces  
Programmable preamp gain  
Pseudo differential inputs with common mode rejection  
Programmable ALC / Noise Gate in ADC path  
Low-noise bias supplied for electret microphones  
microphone or line input through the ADC as well as a purely  
digital limiter function for record or playback. A programmable  
high pass filter in the ADC path is provided for wind noise  
reduction and an IIR with programmable coefficients can be used  
as a notch filter to suppress fixed-frequency noise.  
The WM8983 digital audio interface can operate in master or Other Features:  
slave mode, while an integrated PLL supports flexible clocking  
schemes. A-law and µ-law companding are fully supported.  
Enhanced 3-D function for improved stereo separation  
Highly flexible mixing functions  
5-band equaliser (ADC or DAC path)  
ADC Programmable high pass filter (wind noise reduction)  
ADC Programmable IIR notch filter  
Aux inputs for stereo analog input signals or ‘beep’  
PLL supporting various clocks between 8MHz-50MHz  
Sample rates supported (kHz): 8, 11.025, 16, 12, 16, 22.05,  
24, 32, 44.1, 48  
The WM8983 operates at analogue supply voltages from 2.5V to  
3.3V, although the digital core can operate at voltages down to  
1.71V to save power. Speaker supplies can operate up to 5V for  
increased speaker output power. Additional power management  
control enables individual sections of the chip to be powered  
down under software control.  
2.5V to 3.6V analogue supplies  
1.71V to 3.6V digital supplies  
2.5V to 5.5V speaker supplies  
5x5mm 32-lead QFN package  
APPLICATIONS  
Multimedia mobile phones  
Production Data, November 2006, Rev 4.0  
WOLFSON MICROELECTRONICS plc  
Copyright ©2006 Wolfson Microelectronics plc  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  

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