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參數(shù)資料
| 型號(hào)： | FAN3850TUC13X35 |
| 廠商： | Fairchild Semiconductor |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MICROPHONE PRE-AMP 6-WLCSP |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 類型： | AB 類 |
| 輸出類型： | 1-通道（單聲道） |
| 電源電壓： | 1.64 V ~ 3.63 V |
| 特點(diǎn)： | ADC，麥克風(fēng) |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 6-WLCSP |
| 封裝/外殼： | 6-XFBGA |
| 包裝： | 帶卷 (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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN3850TUC15X35 | 功能描述:傳聲器前置放大器 Mic Pre-Amp w/Temp Comp & Digital-Out RoHS:否 制造商:Texas Instruments 可用增益調(diào)整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 最大輸入電阻:9200 Ohms 最大工作溫度:+ 85 C 封裝 / 箱體:SSOP-28 封裝:Tube |
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