SSM2166S-REEL  音频放大器SOIC-14封装

The SSM2166 integrates a complete and flexible solution for conditioning microphone inputs in computer audio systems. It is also excellent for improving vocal clarity in communications 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 15:1 relative to a user-defined rotation point; signals above the rotation point are limited to prevent overload and to eliminate popping. In the 1:1 compression setting, the SSM2166 can be programmed with a fixed gain of up to 20 dB; this gain is in addition to the variable gain in other compression settings. The input buffer can also be configured for front-end gains of 0 dB to 20 dB. A downward expander (noise gate) prevents amplification of 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 that could add noise or impair accuracy of speech recognition algorithms. The compression ratio and time constants are set externally. A high degree of flexibility is provided by the VCA gain, rotation point, and noise gate adjustment pins.

The SSM2166 is an ideal companion product for audio codecs used in computer systems, such as the AD1845. The SSM2166 is available in a 14-lead SOIC package and is guaranteed for operation over the extended industrial temperature range of −40°C to +85°C.

SSM2166S-REEL 应用
SSM2166S-REEL 特征
SSM2166S-REEL 功能框图

Functional Block Diagram for SSM2166

芯片引脚定义图

SSM2166S-REEL 技术指标
PSRR (dB) 50dB Supply Current 10mA
THD+N @ 1kHz (%) 0.25% Compression Ratio Range 1:1 to 15:1
Product Description Mic Conditioner w/ Noise Gate Gain Bandwidth Product 30MHz
Pos Supply +4.5V to +5.5V    
SSM2166 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
SSM2166S 量产 14 ld SOIC 14 工业
SSM2166S-REEL 量产 14 ld SOIC 14 工业
SSM2166S-REEL7 量产 14 ld SOIC 14 工业
SSM2166SZ 量产 14 ld SOIC 14 工业
SSM2166SZ-REEL 量产 14 ld SOIC 14 工业
SSM2166SZ-REEL7 量产 14 ld SOIC 14 工业
SSM2166S-REEL 应用技术支持与电子电路设计开发资源下载
  1. ADC音频放大器系列SSM2166 数据手册DataSheet 下载 . pdf
  2. Advantiv 高级电视解决方案 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf
  4. ADI 美国模拟器件公司音频放大器选型指南 . pdf