Datasheet > WM8816_04

WM8816_04

更新时间： 2024-11-26 03:54:39

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
13页	163K
描述
Stereo Digital Volume Control

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中文翻译

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WM8816_04 数据手册

WM8816

Stereo Digital Volume Control

DESCRIPTION

FEATURES

•

Gain range from -111.5dB to +15.5dB

0.5dB Gain step size

The WM8816 is a highly linear stereo volume control for

audio systems. The design is based on resistor chains with

external op-amps, which provides flexibility for the supply

voltage, signal swing, noise floor and cost optimisation. The

gain of each channel can be independently programmed

from -111.5dB to +15.5dB through a digital serial control

interface.

Total Harmonic Distortion 0.001% (100dB) typical

Crosstalk -110dB typical

Input signals up to 18V

Zero Detection for Gain Changes

Hardware and Software Mute

Audible clicks on gain changes are eliminated by changing

gains only when a zero crossing has been detected in the

signal. The device also features peak level detection, which

can be used for Automatic Gain Control. The WM8816

operates from a single +5V supply and accepts signal input

levels up to 18V.

Power On/Off Transient Suppression

APPLICATIONS

•

Audio Amplifiers

The WM8816 is available in a 16-pin SOIC package. It is

guaranteed over a temperature range of -20° to +60°C.

Consumer Audio / Entertainment Systems

Mixing Desks

Audio Recording Equipment

BLOCK DIAGRAM

LFO

LIN

LMO

LGND

LEFT OUT

Zero

Peak

Crossing

Detector

Level

Detector

CSB

MUTEB

DATA

External Opamps

DAC

Control

WM8816

CCLK

Zero

Crossing

Detector

Peak

Level

Detector

RIGHT OUT

RMO

RFO

RGND

RIN

AVDD

AGND

DVDD

DGND

WOLFSON MICROELECTRONICS plc

Product Preview, October 2004, Rev 1.5

www.wolfsonmicro.com

12 3 4 5 6 7...13

中文翻译

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