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参数资料
| 型号： | FAN3850TUC13X35 |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC MICROPHONE PRE-AMP 6-WLCSP |
| 标准包装： | 3,000 |
| 类型： | AB 类 |
| 输出类型： | 1-通道（单声道） |
| 电源电压： | 1.64 V ~ 3.63 V |
| 特点： | ADC，麦克风 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 6-WLCSP |
| 封装/外壳： | 6-XFBGA |
| 包装： | 带卷 (TR) |
March 2012
2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN3850T Rev. 3.0.2
FAN3850T
—
Microphone
Pre-Amp
lifier
with
Temperature
Compen
sation
and
Digital
Output
FAN3850T
Microphone Pre-Amplifier with Temperature
Compensation and Digital Output
Features
Optimized for Mobile Handset and Notebook PC
Microphone Applications
Accepts Input from Electret Condenser Microphones
Pulse Density Modulation (PDM) Output
Standard 5-Wire Digital Interface
Amplifier Gain: 15.7dB or 13.7dB
Negative Temperature Coefficient to Compensate for
ECM Positive Temperature Coefficient
Low Input Capacitance, High PSR, 20kHz
Pre-Amplifier
Low-Power, 1.5A Sleep Mode
Typical 420A Supply Current
Signal to Noise Ratio of 62.4dB(A)
Total Harmonic Distortion: 0.01%
Input Clock Frequency Range of 1-4MHz
Integrated Low Drop-Out Regulator (LDO)
Small 1.26mm x 0.86mm 6-Ball WLCSP
Applications
Electret Condenser Microphones with Digital Output
Mobile Handsets
Headset Accessories
Personal Computers (PC)
Description
The FAN3850T integrates a pre-amplifier, LDO, and
Analog-to-Digital Converter (ADC) to convert 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 ADC and outputs PDM
data. The PDM digital audio has the advantage of noise
rejection and interface-to-mobile handset processors.
The FAN3850T is powered from the system supply rails
up to 3.63V, with a low power consumption of only
0.85mW, and less than 20μW in Power-Down Mode.
The device compensates for the temperature variation
of the microphone element to achieve a flat sensitivity
response over-temperature.
Figure 1. Block Diagram
Ordering Information
Part Number
Gain
Option
Operating
Temperature Range
Package
Packing
Method
FAN3850TUC15X35
15.7dB
-30°C to +85°C
6-Ball, Wafer-Level Chip-Scale
Package (WLCSP)
3000 Unit
Tape & Reel
FAN3850TUC13X35
13.7dB
Note:
1.
Alternate gain options and temperature coefficient slopes are possible. Please contact a Fairchild representative.
LDO
Pre-Amp
ADC
INPUT
Sleep
Mode Ctrl
DATA
SELECT
CLOCK
GND
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN3850TUC15X35 | 功能描述:传声器前置放大器 Mic Pre-Amp w/Temp Comp & Digital-Out RoHS:否 制造商:Texas Instruments 可用增益调整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 输入补偿电压: 最大输入电阻:9200 Ohms 最大工作温度:+ 85 C 封装 / 箱体:SSOP-28 封装:Tube |
| FAN3850X | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:New Products, Tips and Tools for Power and Mobile Applications |
| FAN3988 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:USB/Charger and Over-Voltage Detection Device |
| FAN3988_AAC3066B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN3988IL6X | 制造商:Rochester Electronics LLC 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述:IC OVER/UNDER VOLT PROTECT 6UPAK 制造商:Fairchild Semiconductor Corporation 功能描述:TAPE REEL / Ang FG Low Ron (0.8 ohms) SPDT Neg Swing Switch |
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