FODM8801C

更新时间： 2024-11-07 11:57:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	2074K
描述
New Products, Tips and Tools for Power and Mobile Applications

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中文翻译

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数据手册

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FODM8801C 数据手册

™

BENCHMarks

New Products, Tips and Tools for Power and Mobile Applications

VOL. 1, 2012

Digital Microphones Improve

Sound Quality, Lower Power

Advantages

Achieve better sound quality in mobile handset and notebook microphone

applications with Fairchild’s FAN3850x series of digital microphone pre-ampliﬁers.

These high performance analog mobile audio devices provide advanced noise

rejection capabilities as well as an easy interface to mobile handset processors.

•ꢀ Excellentꢀsignal-to-noiseꢀratio

•ꢀ Lowerꢀpowerꢀcompensation,ꢀ

ꢀ 0.8mW

The series includes:

•ꢀ <20μWꢀpowerꢀdownꢀmode

• FAN3850A that features both 16dB and 19dB gain versions,

• FAN3850T offering 15dB gain and integrated negative temperature

coefﬁcient to compensate for ECM positive temperature coefﬁcient to

achieve a ﬂat sensitivity response over temperature.

Applications

•ꢀ Mobileꢀhandsetsꢀ

Both devices integrate a pre-ampliﬁer, low drop-out regulator (LDO) and analog-

to-digital converter (ADC) that converts Electret Condenser Microphone (ECM)

outputs to digital pulse density modulation (PDM) data streams.

•ꢀ NotebookꢀPCꢀmicrophones

For more information, please visit:

www.fairchildsemi.com/pf/FA/FAN3850A.html

www.fairchildsemi.com/pf/FA/FAN3850T.html

SNR (dBa)

THD (dB)

SINAD (dB)

-10

-20

0.001

0.01

0.1

100

Input Signal (mVpp)

FAN3850T 15dB SNR (dBa), THD (-dB), SINAD (dB) over Input Amplitude

120dB SPL

Product

ESD (HBM)

(kV)

I_DD(μA)

420

I_SLEEP(μA)

1.4

SNR (dB)

THD (%)

0.01

THD + N

(%)

Number

FAN3850x

V_DD= 1.8V, F_CLOCK= 2.4MHz, 94dBSPL

12 3 4 5 6 7 8

中文翻译

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