Datasheet > WM8751LSEFR

WM8751LSEFR

更新时间： 2024-11-23 04:25:11

品牌	Logo	应用领域
欧胜 - WOLFSON		便携式
页数	文件大小	规格书
45页	481K
描述
STEREO DAC FOR PORTABLE AUDIO APPLICATIONS

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WM8751LSEFR 数据手册

WM8751L

Stereo DAC For Portable Audio Applications

DESCRIPTION

FEATURES

•

DAC SNR 98dB, THD -86dB (‘A’ weighted @ 48kHz, 3.3V)

On-chip 400mW BTL Speaker Driver (mono)

On-chip Headphone Driver

The WM8751L is a low power, high quality stereo DAC with

integrated headphone and loudspeaker amplifiers, designed to

reduce external component requirements in portable digital

audio applications.

40mW output power on 16Ω / 3.3V

SNR 96dB, THD –79dB at 20mW with 16Ω load

The on-chip headphone amplifiers can deliver 40mW into a 16Ω

load. Advanced on-chip digital signal processing performs bass

and treble tone control.

•

Stereo and Mono Line-in mix into DAC output

Separately Mixed Stereo and Mono Outputs

Digital Tone Control and Bass Boost

Low Power

The WM8751L can operate as a master or a slave, with various

master clock frequencies including 12 or 24MHz for USB

devices or standard 256f_srates like 12.288MHz and

24.576MHz. Different audio sample rates such as 96kHz,

48kHz, 44.1kHz are generated directly from the master clock

without the need for an external PLL.

Down to 7mW for stereo playback (1.8V / 1.5V supplies)

10µW Shutdown Mode

•

Low Supply Voltages

Analogue and Digital I/O: 1.8V to 3.6V

Digital core: 1.42V to 3.6V

•

256fs / 384fs or USB master clock rates: 12MHz, 24MHz

Audio sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,

48, 88.2, 96kHz generated internally from master clock

32-lead QFN package, 5x5x0.9mm size, 0.5mm lead pitch

The WM8751L operates on supply voltages from 1.8V up to

3.6V, although the digital core can operate on a separate supply

down to 1.42V, saving power. Different sections of the chip can

also be powered down under software control.

•

APPLICATIONS

The WM8751L is supplied in a very small and thin 5x5mm QFN

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

•

Digital Audio Player

MP3 Phone

Minidisc Player

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

Production Data, August 2006, Rev 4.2

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

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