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SSM2167-2RM-REEL

更新时间： 2024-02-18 20:58:03
品牌 Logo 应用领域
亚德诺 - ADI 消费电路商用集成电路音频放大器视频放大器光电二极管
页数 文件大小 规格书
8页 120K
描述
Low Voltage Microphone Preamplifier with Variable Compression and Noise Gating

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SSM2167-2RM-REEL 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：MSOP包装说明：MSOP-10
针数：10Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.71Is Samacsys：N
标称带宽：20 kHz商用集成电路类型：AUDIO PREAMPLIFIER
增益：8 dBJESD-30 代码：S-PDSO-G10
JESD-609代码：e0长度：3 mm
信道数量：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP10,.19,20
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：3 V认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Audio/Video Amplifiers
最大压摆率：5 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.5 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn85Pb15)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL宽度：3 mm
Base Number Matches：1

SSM2167-2RM-REEL 数据手册

 浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第2页浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第3页浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第4页浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第5页浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第6页浏览型号SSM2167-2RM-REEL的Datasheet PDF文件第7页 
Low Voltage Microphone  
Preamplifier with Variable  
Compression and Noise Gating  
a
SSM2167  
FEATURES  
PIN CONFIGURATION  
Complete Microphone Conditioner in a 10-Lead Package  
Single 3 V Operation  
10-Lead MSOP  
(RM Suffix)  
Low Shutdown Current < 2 ␮A  
Adjustable Noise Gate Threshold  
Adjustable Compression Ratio  
Automatic Limiting Feature Prevents ADC Overload  
Low Noise and Distortion: 0.2% THD + N  
20 kHz Bandwidth  
1
10  
9
GND  
V
DD  
2
3
4
5
VCA  
OUTPUT  
IN  
SSM2167  
8
SHUTDOWN  
COMPRESSION RATIO  
GATE THRS  
AVG CAP  
7
BUF OUT  
INPUT  
6
APPLICATIONS  
Desktop, Portable, or Palmtop Computers  
Telephone Conferencing  
Communication Headsets  
Two-Way Communications  
Surveillance Systems  
Karaoke and DJ Mixers  
GENERAL DESCRIPTION  
LIMITING  
REGION  
LIMITING  
The SSM2167 is a complete and flexible solution for conditioning  
microphone inputs in personal electronics and computer audio  
systems. It is also excellent for improving vocal clarity in communi-  
cations and public address systems. A low noise voltage controlled  
amplifier (VCA) provides a gain that is dynamically adjusted by a  
control loop to maintain a set compression characteristic. The  
compression ratio is set by a single resistor and can be varied from  
1:1 to over 10:1 relative to the fixed rotation point. Signals above  
the rotation point are limited to prevent overload and to eliminate  
“popping.” A downward expander (noise gate) prevents amplifica-  
tion of background noise or hum. This results in optimized signal  
levels prior to digitization, thereby eliminating the need for addi-  
tional gain or attenuation in the digital domain. The flexibility of  
setting the compression ratio and the time constant of the level  
detector, coupled with two values of rotation point, make the  
SSM2167 easy to integrate in a wide variety of microphone  
conditioning applications.  
THRESHOLD  
(ROTATION POINT)  
COMPRESSION  
REGION  
DOWNWARD  
EXPANSION  
THRESHOLD  
(NOISE GATE)  
VCA GAIN  
1
r
DOWNWARD  
EXPANSION  
REGION  
1
1
V
V
RP  
DE  
INPUT – dB  
Figure 1. General Input/Output Characteristics  
The SSM2167 is available in two versions, with different amounts  
of fixed gain. The SSM2167-1 has 18 dB of fixed gain, while  
the SSM2167-2 features only 8 dB of fixed gain.  
The device is available in 10-lead MSOP package, and guaranteed  
for operation over the extended industrial temperature range of  
–40°C to +85°C.  
REV. A  
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.  
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  
© Analog Devices, Inc., 2002  
12345678

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