Datasheet > WM8976GEFL/V

WM8976GEFL/V

更新时间： 2024-11-07 03:07:55

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
108页	1227K
描述
Stereo CODEC With Speaker Driver

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WM8976GEFL/V 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 16Ω / 3.3V SPKVDD

•

0.9W output power into 8Ω 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

Psuedo 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 analog 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

Pre-Production, April 2006, Rev 3.0

WOLFSON MICROELECTRONICS plc

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与WM8976GEFL/V相关器件

型号	品牌	获取价格	描述	数据表
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
WM8980	WOLFSON	获取价格	STEREO CODEC WITH SPEAKER DRIVER AND BUFFER
WM8980_07	WOLFSON	获取价格	Stereo CODEC With Speaker Driver and Video Buffer
WM8980_12	WOLFSON	获取价格	Stereo CODEC with Speaker Driver and Video Buffer
WM8980CGEFL/RV	WOLFSON	获取价格	Stereo CODEC with Speaker Driver and Video Buffer

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