Electret Condenser Microphone Cartridge Preamplifier

General Description The MAX9810 microphone preamplifier is intended for use inside electret condenser microphone (ECM) cartridges. Current solutions use a FET as an impedance converter. FETs have limited gain, are susceptible to noise and require additional components external to the ECM cartridg

文件：226.99 Kbytes 页数：9 Pages

Maxim

美信

Electret Condenser Microphone Cartridge Preamplifier

General Description The MAX9810 microphone preamplifier is intended for use inside electret condenser microphone (ECM) cartridges. Current solutions use a FET as an impedance converter. FETs have limited gain, are susceptible to noise and require additional components external to the ECM cartridg

文件：226.99 Kbytes 页数：9 Pages

Maxim

美信

Electret Condenser Microphone Cartridge Preamplifier

General Description The MAX9810 microphone preamplifier is intended for use inside electret condenser microphone (ECM) cartridges. Current solutions use a FET as an impedance converter. FETs have limited gain, are susceptible to noise and require additional components external to the ECM cartridg

文件：226.99 Kbytes 页数：9 Pages

Maxim

美信

Electret Condenser Microphone Cartridge Preamplifier

General Description The MAX9810 microphone preamplifier is intended for use inside electret condenser microphone (ECM) cartridges. Current solutions use a FET as an impedance converter. FETs have limited gain, are susceptible to noise and require additional components external to the ECM cartridg

文件：226.99 Kbytes 页数：9 Pages

Maxim

美信

驻极体麦克风前置放大器

MAX9810麦克风前放设计用在驻极体话筒(ECM)内部。现有的方案是采用一个FET作为阻抗转换器。场效应管(FET)的增益有限，易受噪声影响，并且需要在ECM话筒外部附加元件来提供偏置和放大。MAX9810采用高增益，高噪声抑制能力，低输出阻抗的放大器取代FET。设计用于集成在ECM话筒内部，它具有平坦的频率响应曲线，严格控制的增益，提升的灵敏度和很高的噪声抑制能力，可大大简化系统的设计。目标应用包括存在于手机，掌上电脑，笔记本电脑及其它便携式音频设备中的ECM话筒。\n MAX9810工作在2.3V至5.5V单电源下，静态时耗电流仅670µA。此器件可内部产生一个1.5V的直流偏置，有三种 \n• 2.3V至5.5单电源供电 \n• 高电源抑制比：82dB \n• MAX9810A：24dB \n• MAX9810C：30dB \n• 低电源电流(670µA) \n• 过负荷情况下输出不发生反相 \n• 尺寸微小的4焊球UCSP封装;

ADI

亚德诺