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SSM2167-1RM-R2 PDF预览

SSM2167-1RM-R2

更新时间: 2024-01-01 19:56:39
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
12页 267K
描述
Low Voltage Microphone Preamplifier with Variable Compression and Noige Gating

SSM2167-1RM-R2 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP,针数:10
Reach Compliance Code:unknown风险等级:5.19
Is Samacsys:N标称带宽:20 kHz
商用集成电路类型:AUDIO PREAMPLIFIER增益:18 dB
JESD-30 代码:S-PDSO-G10JESD-609代码:e0
长度:3 mm湿度敏感等级:1
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封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):240
认证状态:COMMERCIAL座面最大高度:1.1 mm
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端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3 mm
Base Number Matches:1

SSM2167-1RM-R2 数据手册

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Low Voltage Microphone Preamplifier with  
Variable Compression and Noise Gating  
SSM2167  
PIN CONFIGURATION  
FEATURES  
Complete microphone conditioner in a 10-lead package  
Single 3 V operation  
Low shutdown current < 2 μA  
Adjustable noise gate threshold  
Adjustable compression ratio  
GND  
1
2
3
4
5
10  
V
DD  
VCA  
9
OUTPUT  
IN  
SSM2167  
TOP VIEW  
(Not to Scale)  
SHUTDOWN  
8
COMPRESSION RATIO  
GATE THRS  
AVG CAP  
BUF  
7
OUT  
INPUT  
6
Figure 1. 10-Lead MSOP (RM Suffix)  
Automatic limiting feature prevents ADC overload  
Low noise and distortion: 0.2% THD + N  
20 kHz bandwidth  
LIMITING  
THRESHOLD  
LIMITING  
REGION  
(ROTATION POINT)  
APPLICATIONS  
Desktop, portable, or palmtop computers  
Telephone conferencing  
Communication headsets  
Two-way communications  
Surveillance systems  
COMPRESSION  
REGION  
DOWNWARD  
EXPANSION  
THRESHOLD  
(NOISE GATE)  
VCA GAIN  
1
r
Karaoke and DJ mixers  
DOWNWARD  
EXPANSION  
REGION  
GENERAL DESCRIPTION  
1
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 com-  
munications 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 charac-  
teristic. 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 amplification of background noise or hum. This  
results in optimized signal levels prior to digitization, thereby  
eliminating the need for additional 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.  
1
V
V
RP  
DE  
INPUT (dB)  
Figure 2. General Input/Output Characteristics  
The device is available in a 10-lead MSOP package, and is  
guaranteed for operation over the extended industrial  
temperature range of −40°C to +85°C.  
Rev. C  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
www.analog.com  
Fax: 781.461.3113 ©2001–2007 Analog Devices, Inc. All rights reserved.  
 
 

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