Datasheet > WM8750BLGEFL/R

WM8750BLGEFL/R

更新时间： 2024-01-18 17:30:02

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器电信集成电路便携式 PC
页数	文件大小	规格书
59页	714K
描述
Stereo CODEC for Portable Audio Applications

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技术参数
数据手册

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WM8750BLGEFL/R 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
Reach Compliance Code：	unknown	风险等级：	5.56
Is Samacsys：	N	湿度敏感等级：	1
Base Number Matches：	1

WM8750BLGEFL/R 数据手册

WM8750BL

Stereo CODEC for Portable Audio Applications

DESCRIPTION

FEATURES

•

DAC SNR 97dB (‘A’ weighted), THD -85dB at 48kHz, 3.3V

ADC SNR 88dB (‘A’ weighted), THD -80dB at 48kHz, 3.3V

Complete Stereo / Mono Microphone Interface

The WM8750BL 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 –73dB at 5mW, SNR 98dB with 16Ω load

No DC blocking capacitors required (capless mode)

•

Separately mixed mono output

Digital Graphic Equaliser

Low Power

The WM8750BL 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.

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

13 mW 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 WM8750BL 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 WM8750BL is supplied in a very small and thin 5x5mm

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

systems.

APPLICATIONS

•

Portable Media Player

Mobile phone handsets

Mobile gaming

BLOCK DIAGRAM

Pre-Production, January 2007, Rev 3.3

WOLFSON MICROELECTRONICS plc

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