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參數資料
| 型號： | WM8816 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Stereo Digital Volume Control |
| 中文描述： | 立體聲數字音量控制 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 368K |
| 代理商： | WM8816 |
WM8816
Stereo Digital Volume Control
Advanced Information, September 2000, Rev 1.1
WOLFSON MICROELECTRONICS LTD
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK
Tel: +44 (0) 131 667 9386
Fax: +44 (0) 131 667 5176
Email: sales@wolfson.co.uk
http://www.wolfson.co.uk
Advanced information
data sheets contain
preliminary data on new products in the
pre-production phase of development.
Supplementary data will be published at a
later date.
2000 Wolfson Microelectronics Ltd
.
DESCRIPTION
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.
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.
The WM8816 is available in a 16-pin SOIC package. It is
guaranteed over a temperature range of -40
°
to 85
°
C.
FEATURES
Gain range from -111.5dB to +15.5dB
0.5dB Gain step size
Total Harmonic Distortion 0.001% (100dB) typical
Crosstalk -110dB typical
Input signals up to ±18V
Zero Detection for Gain Changes
Hardware and Software Mute
Power On/Off Transient Suppression
APPLICATIONS
Audio Amplifiers
Consumer Audio / Entertainment Systems
Mixing Desks
Audio Recording Equipment
BLOCK DIAGRAM
Zero
Crossing
Detector
Zero
Crossing
Detector
Peak
Level
Detector
Peak
Level
Detector
CSB (6)
MUTEB (8)
DATA (9)
CCLK (10)
LGND (5)
LIN (4)
DAC
(3) LFO
(2) LMO
RIN (13)
RGND (12)
(14) RFO
(15) RMO
(1)
AVDD
(16)
AGND
(7)
DVDD
(11)
DGND
+
-
+
-
LEFT OUT
RIGHT OUT
External Opamps
Control
WM8816
相關PDF資料 |
PDF描述 |
|---|---|
| WM8950 | ADC WITH MICROPHONE INPUT AND PROGRAMMABLE DIGITAL FILTERS |
| WM8971LEFL | STEREO CODEC FOR PORTABLE AUDIO APPLLICATIONS |
| WM8971LGEFL | STEREO CODEC FOR PORTABLE AUDIO APPLLICATIONS |
| WM8971L | STEREO CODEC FOR PORTABLE AUDIO APPLLICATIONS |
| WM8972L | MONO CODEC FOR PORTABLE AUDIO APPLICATIONS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| WM8816_04 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Stereo Digital Volume Control |
| WM8816GEDW/V | 制造商:Wolfson Microelectronics 功能描述:IC CONTROLLER STEREO VOLUME 8816 |
| WM8816-MICRO-EV1M | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Micro-Controller Board User Handbook |
| WM8850 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Multi-Channel High Definition Audio CODEC |
| WM8850-6200-FL48-EV1 | 制造商:Wolfson Microelectronics 功能描述:Evaluation Board for the WM8850 Series |
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