Datasheet > WM8750L_05

WM8750L_05

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器便携式
页数	文件大小	规格书
62页	741K
描述
Stereo CODEC for Portable Audio Applications

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WM8750L_05 数据手册

WM8750L

Stereo CODEC for Portable Audio Applications

DESCRIPTION

FEATURES

•

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

ADC SNR 95dB (‘A’ weighted), THD -82dB at 48kHz, 3.3V

Complete Stereo / Mono Microphone Interface

The WM8750L is a low power, high quality stereo CODEC

designed for portable digital audio applications.

The device integrates complete interfaces to stereo or mono

microphones and a stereo headphone. External component

requirements are drastically reduced as no separate

microphone or headphone amplifiers are required.

Advanced on-chip digital signal processing performs

graphic equaliser, 3-D sound enhancement and automatic

level control for the microphone or line input.

Programmable ALC / Noise Gate

•

On-chip 400mW BTL Speaker Driver (mono)

On-chip Headphone Driver

>40mW output power on 16Ω / 3.3V

THD –80dB at 20mW, SNR 90dB with 16Ω load

No DC blocking capacitors required (capless mode)

•

Separately mixed mono output

Digital Graphic Equaliser

Low Power

The WM8750L 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.

7mW stereo playback (1.8V / 1.5V supplies)

14mW record & playback (1.8V / 1.5V supplies)

•

Low Supply Voltages

Analogue 1.8V to 3.6V

Digital core: 1.42V to 3.6V

Digital I/O: 1.8V to 3.6V

The WM8750L operates at supply voltages down to 1.8V,

although the digital core can operate at voltages down to

1.42V to save power, and the maximum for all supplies is

3.6 Volts. Different sections of the chip can also be powered

down under software control.

•

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

Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48,

88.2, 96kHz generated internally from master clock

5x5x0.9mm QFN package

•

The WM8750L is supplied in a very small and thin 5x5mm

QFN package, ideal for use in hand-held and portable

systems.

APPLICATIONS

•

MP3 Player / Recorder

AAC/WMA/Multi-Format Player / Recorder

Minidisc Player / Recorder

Portable Digital Music Systems

BLOCK DIAGRAM

Production Data, August 2005, Rev 4.2

WOLFSON MICROELECTRONICS plc

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