FAN3852中文资料麦克风预放大器，带数字输出数据手册ONSEMI规格书

描述 Description

The FAN3852 integrates a pre-amplifier, LDO, and ADC that converts Electret Condenser Microphone (ECM) outputs to digital Pulse Density Modulation (PDM) data streams. The pre-amplifier accepts analog signals from the ECM and drives an over-sampled sigma delta Analog-to-Digital Converter (ADC) and outputs PDM data. The PDM digital audio has the advantage of noise rejection and easy interface to mobile handset processors.
The FAN3852 features an integrated LDO and is powered from the system supply rails up to 3.63V, with low power consumption of only 0.85mW and less than 20µW in Power-Down Mode.

特性 Features

• Optimized for Mobile Handset and Notebook PC Microphone Applications
• Accepts Input from Electret Condenser Microphones (ECM)
• Pulse Density Modulation (PDM) Output
• Standard 5-Wire Digital Interface
• Low Input Capacitance, High PSR, 20 kHz Pre-Amplifier
• Low-Power 1.5µA Sleep Mode
• Typical 420µA Supply Current
• SNR of 62dB(A) for 16dB Gain
• Total Harmonic Distortion 0.02%
• Input Clock Frequency Range of 1-4MHz
• Integrated Low Drop-Out Regulator (LDO)
• 1.5kV HBM ESD on MIC Input

简介

FAN3852属于集成电路（IC）的音频专用。由制造生产的FAN3852音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。