关于MIC差分和单端输出以及单端转差分电路连接

Sisonic and ECM in Differential Circuits1151 Maplewood Drive, Itasca, IL 60143 Phone: 630.250.5100 Fax: 630.250.0575

Sisonic and ECM in Differential Circuits
Date: Author: Bill Ryan
20.Jan.2005

Benefits of Differential Circuits Differential amplifiers are desirable to use in audio applications, especially those where signal levels are very low such as those from microphones. Classically, the benefits received from using differential amplification are listed below: 1. Increase of Common Mode Rejection Ratio (CMRR) 2. Signal to Noise (SNR) increase. 3. Rejection in Electromagnetic Interference (EMI) Signal Concepts Any voltage can be characterized by a potential difference between two terminals. It is important to note that all voltage signals can be characterized by this potential difference between two terminals