LMV1012-07 National Semiconductor Corporation, LMV1012-07 Datasheet

LMV1012-07

Manufacturer Part Number

LMV1012-07

Description

LMV1012-07 - Analog Pre-amplified Ic's For High Gain Microphones, Package: Microsmd, Pin Nb=4

Manufacturer

National Semiconductor Corporation

Datasheet

1.LMV1012-07.pdf (3 pages)

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LMV1012-07/ LMV1012-15/ LMV1012-25

Analog Pre-Amplified IC’s for High Gain Microphones

General Description

The LMV1012 is an audio amplifier series for small form

factor electret microphones. It is designed to replace the

JFET amplifier currently being used. The LMV1012 series is

ideally suited for applications requiring high signal integrity in

the presence of ambient or RF noise, such as in cellular

communications. The LMV1012 audio amplifiers are guaran-

teed to operate over a 2.2V to 5.0V supply voltage range

with fixed gains of 7.8dB, 15.6dB and 23.8dB. The devices

offer excellent gain accuracy and temperature stability as

compared to a JFET microphone.

The LMV1012 series enables a two-pin electret microphone

solution, which provides direct pin-to-pin compatibility with

the existing JFET market.

The devices are offered in two space saving 4-bump micro

SMD

and LMV1012TP-25 are well suited for canister packages

1.8mm and thicker. The LMV1012UP-15 is ideal for canisters

1.3mm and thicker. These miniature packages are designed

for electret condenser microphones (ECM) form factor.

Schematic Diagram

™

packages. The LMV1012TP-07, LMV1012TP-15,

DS200723

20072301

Features

(Typical LMV1012-15, 2.2V supply, R

n Supply voltage

n Supply current

n Signal to noise ratio (A-weighted)

n Output voltage noise (A-weighted)

n Total Harmonic Distortion

n Voltage gain

n Temperature range

n Offered in 4-bump micro SMD packages:

Applications

n Cellular phones

n Headsets

n Mobile communications

n Automotive accessories

n PDAs

n Accessory microphone products

Built-In Gain Electret Microphone

— LMV1012-07

— LMV1012-15

— LMV1012-25

— 0.93 x 1.0 x 0.4mm

— 0.93 x 1.0 x 0.5mm

= 18mV

, unless otherwise specified)

= 2.2kΩ, C = 2.2µF,

−40˚C to 85˚C

www.national.com

May 2003

20072302

−89dBV

2V - 5V

15.6dB

23.8dB

180µA

0.09%

7.8dB

60dB

Related parts for LMV1012-07

LMV1012-07 Summary of contents

Page 1

... LMV1012-07/ LMV1012-15/ LMV1012-25 Analog Pre-Amplified IC’s for High Gain Microphones General Description The LMV1012 is an audio amplifier series for small form factor electret microphones designed to replace the JFET amplifier currently being used. The LMV1012 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular communications ...

Page 2

Physical Dimensions unless otherwise noted NOTE: UNLESS OTHERWISE SPECIFIED. 1. EPOXY COATING. 2. 63Sn/37Pb EUTECTIC BUMP. 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION PINS ARE NUMBERED ...

Page 3

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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