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參數資料
| 型號： | WM8983GEFL |
| 廠商： | Wolfson Microelectronics |
| 元件分類： | Codec |
| 英文描述： | Mobile Multimedia CODEC with 1W Speaker Driver |
| 中文描述： | 移動多媒體編解碼器1W的揚聲器驅動器 |
| 文件頁數： | 1/88頁 |
| 文件大小： | 1508K |
| 代理商： | WM8983GEFL |
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w
Mobile Multimedia CODEC with 1W Speaker Driver
WM8983
WOLFSON MICROELECTRONICS plc
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http://www.wolfsonmicro.com/enews/Product Preview, August 2005, Rev 1.1
Copyright
2005 Wolfson Microelectronics plc
DESCRIPTION
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.
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.
Advanced on-chip digital signal processing includes a 5-band
equaliser, a mixed signal Automatic Level Control for the
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
slave mode, while an integrated PLL supports flexible clocking
schemes. A-law and
μ
-law companding are fully supported.
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.
FEATURES
Stereo Codec:
DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)
ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)
Speaker driver (1W into 8
BTL with 5V supply)
Headphone driver with ‘capless’ option
40mW per channel output power into 16
/ 3.3V AVDD2
Pop and click suppression
Mic Preamps:
Stereo Differential or mono microphone Interfaces
Programmable preamp gain
Psuedo differential inputs with common mode rejection
Programmable ALC / Noise Gate in ADC path
Low-noise bias supplied for electret microphones
Other Features:
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
2.5V to 3.6V analogue supplies
1.71V to 3.6V digital supplies
2.5V to 5.5V speaker supplies
5x5mm 32-pin QFN package
APPLICATIONS
Multimedia phone
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WM8983GEFL/RV | 功能描述:接口—CODEC Mbl Multimedia CODEC w/ 1W Speaker Driver RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8983GEFL/V | 功能描述:接口—CODEC Mbl Multimedia CODEC w/ 1W Speaker Driver RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8983GEFLR | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Mobile Multimedia CODEC with 1W Speaker Driver |
| WM8985 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Multimedia CODEC With Class D Headphone and Line Out |
| WM8985_07 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Multimedia CODEC With Class D Headphone and Line Out |
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