Datasheet > WM8976_11

WM8976_11

更新时间： 2024-09-18 11:59:19

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
114页	1425K
描述
Stereo CODEC with Speaker Driver

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WM8976_11 数据手册

WM8976

Stereo CODEC with Speaker Driver

DESCRIPTION

FEATURES

Stereo CODEC:

The WM8976 is a low power, high quality CODEC designed

for portable applications such as multimedia phone, digital

still camera or digital camcorder.



DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)

ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)

On-chip Headphone Driver with ‘capless’ option

The device integrates a preamp for differential microphone,

and includes drivers for speakers, headphone and

differential or stereo line output. External component

requirements are reduced as no separate microphone or

headphone amplifiers are required.

40mW per channel into 16 / 3.3V SPKVDD



1W output power into 8 BTL speaker / 5V SPKVDD

Capable of driving piezo speakers

Stereo speaker drive configuration

Mic Preamps:



Differential or single-ended microphone interfaces

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.

Additional digital filtering options are available in the ADC

path, to cater for application filtering such as ‘wind noise

reduction’.

Programmable preamp gain

Pseudo differential input with common mode rejection

Programmable ALC / Noise Gate in ADC path



Low-noise bias supplied for electret microphone

Other Features:



Enhanced 3-D function for improved stereo separation

Digital playback limiter

The WM8976 digital audio interface can operate as a master

or a slave. An internal PLL can generate all required audio

clocks for the CODEC from common reference clock

frequencies, such as 12MHz and 13MHz.

5-band Equaliser (record or playback)

Programmable ADC High Pass Filter (wind noise reduction)

Programmable ADC Notch Filter

Aux inputs for stereo analogue input signals or ‘beep’

On-chip PLL supporting 12, 13, 19.2MHz and other clocks

Support for 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48kHz

sample rates

The WM8976 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. The speaker outputs

and OUT3/4 line outputs can run from a 5V supply if

increased output power is required. Individual sections of

the chip can also be powered down under software control.



Low power, low voltage

2.5V to 3.6V (digital: 1.71V to 3.6V)

5x5mm 32-lead QFN package

APPLICATIONS



Stereo Camcorder or DSC

Multimedia Phone

WOLFSON MICROELECTRONICS plc

Production Data, November 2011, Rev 4.5

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

12 3 4 5 6 7...114

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与WM8976_11相关器件

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WM8976CGEFL/RV	WOLFSON	获取价格	Stereo CODEC with Speaker Driver
WM8976CGEFL/V	WOLFSON	获取价格	Stereo CODEC with Speaker Driver
WM8976GEFL/RV	WOLFSON	获取价格	Stereo CODEC With Speaker Driver
WM8976GEFL/V	WOLFSON	获取价格	Stereo CODEC With Speaker Driver
WM8978	WOLFSON	获取价格	STEREO CODEC WITH SPEAKER DRIVER
WM8978_06	WOLFSON	获取价格	Stereo CODEC With Speaker Driver
WM8978_11	WOLFSON	获取价格	Stereo CODEC with Speaker Driver
WM8978GEFL	WOLFSON	获取价格	STEREO CODEC WITH SPEAKER DRIVER
WM8978GEFL/RV	WOLFSON	获取价格	STEREO CODEC WITH SPEAKER DRIVER
WM8978GEFL/V	WOLFSON	获取价格	STEREO CODEC WITH SPEAKER DRIVER

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