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AD1991

更新时间： 2024-01-04 03:38:32
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
11页 195K
描述
Class D/1-Bit Audio Power Output Stage

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AD1991 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFP
包装说明：HTQFP, TQFP52,.47SQ,25针数：52
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.71
商用集成电路类型：AUDIO AMPLIFIERJESD-30 代码：S-PQFP-G52
JESD-609代码：e3长度：10 mm
湿度敏感等级：3信道数量：4
功能数量：1端子数量：52
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：20 W封装主体材料：PLASTIC/EPOXY
封装代码：HTQFP封装等效代码：TQFP52,.47SQ,25
封装形状：SQUARE封装形式：FLATPACK, HEAT SINK/SLUG, THIN PROFILE
峰值回流温度（摄氏度）：260电源：5,20 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Audio/Video Amplifiers最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V表面贴装：YES
技术：NMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：QUAD
处于峰值回流温度下的最长时间：40宽度：10 mm
Base Number Matches：1

AD1991 数据手册

 浏览型号AD1991的Datasheet PDF文件第2页浏览型号AD1991的Datasheet PDF文件第3页浏览型号AD1991的Datasheet PDF文件第4页浏览型号AD1991的Datasheet PDF文件第5页浏览型号AD1991的Datasheet PDF文件第6页浏览型号AD1991的Datasheet PDF文件第7页 
Class D/1-Bit Audio Power Output Stage  
AD1991  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
2-Channel Mode  
Class D/1-Bit Audio Power Output Stage  
5 V Analog and Digital Supply Voltages  
Power Stage Power Supply 8 V to 20 V  
Output Power @ 0.1% THD + N  
Stereo Mode  
AV  
DD  
DV  
DD  
PV  
DD  
6
OUTA  
3
A1  
A2  
INA  
2 ꢀ 20 W @ 4 ꢁ @ 14.4 V  
2 ꢀ 20 W @ 8 ꢁ @ 20 V  
LEFT  
INPUT  
Mono Mode  
1 ꢀ 40 W @ 4 ꢁ @ 20 V  
RON < 320 mꢁ (per Transistor)  
Efficiency > 85% @ Full Power/8 ꢁ  
Clickless Mute Function  
B1  
B2  
INB  
OUTB  
3
LEVEL SHIFTER  
AND  
SWITCH CONTROL  
H-BRIDGE  
OUTC  
3
Turn-On and Turn-Off Pop Suppression  
Short-Circuit Protection  
Overtemperature Protection  
Data Loss Protection  
2-Channel BTL Outputs or  
4-Channel Single-Ended Outputs  
52-Lead Exposed Pad TQFP Package  
Low Cost DMOS Process  
C1  
C2  
INC  
RIGHT  
INPUT  
D1  
D2  
IND  
OUTD  
3
،n  
CURRENT OVERLOAD  
CLK  
RST/PDN  
MUTE  
THERMAL SHUTDOWN  
THERMAL WARNING  
DATA LOSS  
THERMAL PROTECTION  
SHORT-CIRCUIT PROTECTION  
MUTE CONTROL  
APPLICATIONS  
PC Audio Systems  
Minicomponents  
Automotive Amplifiers  
Home Theater Systems  
Televisions  
4
2
14  
AGND DGND  
TEST  
CONTROL  
PGND  
4-Channel Mode  
AV  
DD  
DV  
DD  
PV  
DD  
6
GENERAL DESCRIPTION  
The AD1991 is a 2-channel BTL or 4-channel single-ended  
class D audio power output stage. The part is configured during  
reset to be in either 2-channel mode or 4-channel mode.  
A1  
A2  
OUTA  
3
INA  
INB  
LOAD  
REQUIRING  
DC VOLTAGE  
SUPPLY  
To protect the IC as well as the connected speakers, the AD1991  
provides turn-on and turn-off pop suppression, short-circuit  
protection, and overtemperature shutdown. To control the IC,  
a power-down/reset input and a mute pin are available.  
B1  
B2  
OUTB  
3
LEVEL SHIFTER  
AND  
SWITCH CONTROL  
The output stage can be operated over a power supply range  
from 8 V to 20 V.  
H-BRIDGE  
C1  
C2  
OUTC  
3
INC  
In 2-channel mode, Transistors A1, B2, C1, and D2 are turned  
on by a Logic 1 on inputs INA and INC, and Transistors A2,  
B1, C2, and D1 are turned on by a Logic 0 on inputs INA and  
INC. In 4-channel mode, Transistors A1, B1, C1, and D1 are  
turned on by a Logic 1 on the four inputs, and Transistors A2,  
B2, C2, and D2 are turned on by a Logic 0 on the four inputs  
(see the Functional Block Diagrams).  
D1  
D2  
OUTD  
3
IND  
LOAD  
REQUIRING  
DC VOLTAGE  
SUPPLY  
،n  
CLK  
CURRENT OVERLOAD  
THERMAL SHUTDOWN  
THERMAL WARNING  
DATA LOSS  
THERMAL PROTECTION  
SHORT-CIRCUIT PROTECTION  
MUTE CONTROL  
RST/PDN  
MUTE  
4
2
14  
REV. 0  
AGND DGND  
TEST  
PGND  
CONTROL  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
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