Datasheet > LMV1032UP-25

LMV1032UP-25

更新时间： 2024-10-13 22:12:51

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器
页数	文件大小	规格书
11页	405K
描述
Amplifiers for 3 Wire Analog Electret Microphones

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LMV1032UP-25 数据手册

February 2004

LMV1032-06/LMV1032-15/LMV1032-25

Amplifiers for 3 Wire Analog Electret Microphones

General Description

Features

The LMV1032 is an audio amplifier series for small form

factor electret microphones. It is designed to replace the

JFET preamp currently being used. The LMV1032 series is

ideal for extended battery life applications, such as a blue-

tooth communication link. The addition of a third pin in

electret microphones that incorporate the LMV1032 allows

for a dramatic reduction in supply current as compared to the

JFET equipped electret microphone. Microphone supply cur-

rent is thus reduced to 60 µA, assuring longer battery life.

The LMV1032 series is guaranteed for supply voltages from

1.7V to 5V, and has fixed voltage gains of 6 dB, 15 dB and 25

dB.

(Typical LMV1032-06, 1.7V Supply; Unless Otherwise

Noted)

n Output voltage noise (A-weighted)

n Low supply current

n Supply voltage

−97 dBV

60 µA

1.7V to 5V

84 dB

n PSRR

n Signal to noise ratio

n Input capacitance

n Input impedance

n Output impedance

n Max input signal

n Temperature range

58 dB

2 pF

100 MΩ

200Ω

300 mV_PP

−40˚C to 85˚C

The LMV1032 series offers low output impedance over the

voice bandwidth, excellent power supply rejection (PSRR),

and stability over temperature.

n Offered in 1.13 x 1.13 x 0.4mm Ultra Thin micro SMD

lead free (NOPB) package

The devices are offered in space saving 4-bump ultra thin

micro SMD (TM) lead free package and are thus ideally

suited for the form factor of miniature electret microphone

packages.

Applications

n Mobile communications - Bluetooth

n Automotive accessories

n Cellular phones

n PDAs

n Accessory microphone products

Block Diagram

Electret Microphone

20084202

20084201

DS200842

www.national.com

12 3 4 5 6 7...11

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与LMV1032UP-25相关器件

型号	品牌	获取价格	描述	数据表
LMV1032UP-25/NOPB	TI	获取价格	Amplifiers for 3-Wire Analog Electret Microphones 4-DSBGA
LMV1032UPX-06	TI	获取价格	Amplifiers for 3-Wire Analog Electret Microphones
LMV1032UPX-06	NSC	获取价格	Amplifiers for 3 Wire Analog Electret Microphones
LMV1032UPX-06/NOPB	TI	获取价格	Amplifiers for 3-Wire Analog Electret Microphones 4-DSBGA -40 to 85
LMV1032UPX-15	NSC	获取价格	Amplifiers for 3 Wire Analog Electret Microphones
LMV1032UPX-15	TI	获取价格	Amplifiers for 3-Wire Analog Electret Microphones
LMV1032UPX-15/NOPB	TI	获取价格	AUDIO AMPLIFIER
LMV1032UPX-25	NSC	获取价格	Amplifiers for 3 Wire Analog Electret Microphones
LMV1032UPX-25	TI	获取价格	Amplifiers for 3-Wire Analog Electret Microphones
LMV1032UR-15	NSC	获取价格	Amplifiers for 3-Wire Analog Electret Microphones