Datasheet > WM8850GEFL/V

WM8850GEFL/V

更新时间： 2024-11-26 11:59:15

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器
页数	文件大小	规格书
223页	1230K
描述
Multi-Channel High Definition Audio CODEC

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中文翻译

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数据手册

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WM8850GEFL/V 数据手册

WM8850

Multi-Channel High Definition Audio CODEC

DESCRIPTION

FEATURES



Multi-channel High Definition Audio CODEC

Fully compatible with Intel High Definition Audio Revision 1.0

6-Channel DAC, 4-channel ADC

DAC sampling frequency 8kHz - 192kHz

ADC sampling frequency 8kHz - 96kHz

DAC Performance:

The WM8850 is

a high performance multi-channel audio

CODEC designed for high performance PC audio systems. The

device offers full compatibility with the Intel High Definition Audio

(HDA) specification revision 1.0, allowing seamless integration

with industry-standard HDA controllers.

The WM8850 has three high performance stereo DACs to

enable six channels of high definition audio, ideal for 5.1

channel applications. A high-performance ground-referenced

stereo headphone amplifier utilises advanced charge pump and

DC servo technology to minimise system cost and space without

compromise on audio quality. Line outputs provide a high-

quality differential connection to speaker amplifiers, enabling

common mode noise rejection when these traces are routed

across a PCB.

SNR 108 dB (‘A’ weighted)

SNR 105dB (non weighted)

THD -96dB (at 0dBFS)



ADC Performance:

SNR 105 dB (‘A’ weighted)

SNR 102dB (non weighted)

THD -95dB (at -1dBFS)



Ground-referenced stereo headphone driver

Differential line inputs/outputs

Stereo microphone interface with integrated pre-amp

Multi-channel digital microphone interface

IEC-60958-3 compatible S/PDIF transceiver

Additional IEC-60958-3 compatible S/PDIF transmitter

Jack detect and load impedance sensing

Beep generator

GPIO functionality

IEEE-754 Single precision 32-bit floating point support

Power supplies

The WM8850 also has two high performance stereo ADCs to

provide Hi-Fi quality analogue line-in and microphone input

digitisation. A low noise microphone bias with programmable

output voltage is provided. Additionally, the CODEC contains a

digital microphone interface capable of supporting up to four

independent digital microphones. One differential stereo input is

provided for line level signals, while one pseudo-differential

stereo input with integrated microphone preamplifier is provided.

The WM8850 also contains a S/PDIF transceiver which is fully

compatible with IEC-60958-3. The S/PDIF receive and transmit

paths each contain a sample rate converter (SRC) to enable

asynchronous sample rate conversion between the S/PDIF

Digital core:

Digital buffer: 2.97V – 3.63V

Analogue: 4.5V – 5.25V

Charge pump: 4.5V – 5.25V

1.62V – 1.98V

receive/transmit and HDA interface clock domains.



48-pin 7mm x 7mm QFN package

additional S/PDIF transmitter is provided to allow direct output of

a stereo stream from the HDA interface.

APPLICATIONS

The WM8850 is supplied in a small 48-pin QFN package.



High performance PC audio

All-in-one desktop PC

Notebook PC

Pre Production, April 2011, Rev 3.2

WOLFSON MICROELECTRONICS plc

12 3 4 5 6 7...223

中文翻译

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与WM8850GEFL/V相关器件

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