Datasheet > WM8956_06

WM8956_06

更新时间： 2024-11-09 03:54:39

品牌	Logo	应用领域
欧胜 - WOLFSON		驱动器
页数	文件大小	规格书
2页	72K
描述
Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

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WM8956_06 数据手册

Product Brief WM8956

Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and

Headphone Drivers

DESCRIPTION

FEATURES

•

DAC SNR 98dB (‘A’ weighted), THD -84dB at 48kHz, 3.3V

Pop and click suppression

3D Enhancement

The WM8956 is a low power, high quality stereo DAC designed

for portable multimedia applications.

Stereo class D speaker drivers provide 1W per channel into 8Ω

loads with a 5V supply. Low leakage, excellent PSRR and

pop/click suppression mechanisms also allow direct battery

connection to the speaker supply. Flexible speaker boost

settings allow speaker output power to be maximised while

minimising other analogue supply currents.

Stereo Class D Speaker Driver

<0.1% THD with 1W per channel into 8Ω BTL speakers

70dB PSRR @217Hz

87% efficiency (1W output)

Flexible internal switching clock

•

On-chip Headphone Driver

40mW output power into 16Ω at 3.3V

Capless mode support

THD -75dB at 20mW, SNR 90dB with 16Ω load

A highly flexible input configuration for up to three stereo

sources is integrated, with a complete microphone interface.

External component requirements are drastically reduced as no

separate microphone, speaker or headphone amplifiers are

required.

Microphone Interface

Pseudo differential for high noise immunity

Integrated low noise MICBIAS

Stereo 24-bit sigma-delta DACs are used with low power over-

sampling digital interpolation filters and a flexible digital audio

interface.

•

Low Power Consumption

10mW headphone playback (2.7V / 1.8V supplies)

Low Supply Voltages

Analogue 2.7V to 3.6V (Speaker supply up to 5.5V)

Digital core and I/O: 1.71V to 3.6V

The master clock can be input directly or generated internally by

an onboard PLL, supporting most commonly-used clocking

schemes.

•

On-chip PLL provides flexible clocking scheme

Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48

5x5x0.9mm QFN package

The WM8956 operates at analogue supply voltages down to

2.7V, although the digital supplies can operate at voltages down

to 1.71V to save power. The speaker supply can operate at up

to 5.5V, providing 1W per channel into 8Ω loads. Unused

functions can be disabled using software control to save power.

APPLICATIONS

•

Mobile multimedia

Portable media / DVD players

Games consoles

The WM8956 is supplied in a very small and thin 5x5mm QFN

package, ideal for use in hand-held and portable systems.

Preliminary Technical Data , September 2006, Rev 2.1

WOLFSON MICROELECTRONICS plc

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

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与WM8956_06相关器件

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WM8956_07	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956_11	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956CGEFL/RV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956CGEFL/V	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL/RV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFL/V	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFLRV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8956GEFLV	WOLFSON	获取价格	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers
WM8958	CIRRUS	获取价格	Multi-channel Codec with 3 Digital Audio Interfaces and Speaker-enhancement DSP

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