LMV1032 - Amplifiers for 3-Wire Analog Electret Microphones

Datasheet Packaging Samples & Pricing Reliability Design Tools Knowledge Base

Features

(Typical LMV1032-15, 1.7V Supply; Unless Otherwise Noted)

Output voltage noise (A-weighted)

-89 dBV

Low supply current

60 µA

Supply voltage

1.7V to 5V

PSRR

70 dB

Signal to noise ratio

61 dB

Input capacitance

2 pF

Input impedance

>100 M

Output impedance

<200

Max input signal

170 mVPP

Temperature range

-40°C to 85°C

Large Dome 4-Bump micro SMD package with improved adhesion technology.

  

General Description

The LMV1032s are an audio amplifier series for small form factor electret microphones. More...


Applications

•Mobile communications - Bluetooth
•Automotive accessories
•Cellular phones
•PDAs
•Accessory microphone products
  Typical Application
See Datasheet for Application Information

Parametric Table     expand
Parametric Table    collapse
SNR 61, 58 dB
Noise A-Wt -80, -97, -89 dBV
Amp Gain 25, 6, 15 dB
Interface Analog 3-Wire
Supply Min 1.7 Volt
Supply Max 5 Volt
Temperature Min -40 deg C
Temperature Max 85 deg C
SNR 61, 58 dB
Noise A-Wt -80, -97, -89 dBV
Amp Gain 25, 6, 15 dB
Interface Analog 3-Wire
Supply Current Per Channel 0.065 mA
Supply Min 1.7 Volt
Supply Max 5 Volt
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog


Typical Performance

click for larger image


  Additional Resources
Design Tools (see below)


Block Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMV1032-06/LMV1032-15/LMV1032-25 Amplifiers for 3-Wire Analog Electret Microphones 804 Kbytes 29-Nov-05 View Online
Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LMV1032UPX-06MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.53reel
of
3000		X
I
16 weeksN/A
LMV1032UPX-15MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.53reel
of
3000		X
I
12 weeksN/A
LMV1032UPX-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.53reel
of
3000		X
I
16 weeksN/A
LMV1032UR-15MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.50reel
of
250		X
I
12 weeksN/A
LMV1032UR-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
Samples
Buy Now 		1K+$0.52reel
of
250		X
I
12 weeksN/A
LMV1032URX-15MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.50reel
of
3000		X
I
12 weeksN/A
LMV1032URX-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.52reel
of
3000		X
I
12 weeksN/A

General Description

The LMV1032s are an audio amplifier series for small form factor electret microphones. They are designed to replace the JFET preamp currently being used. The LMV1032 series is ideal for extended battery life applications, such as a Bluetooth communication link. The addition of a third pin to an electret microphones that incorporates an LMV1032 allows for a dramatic reduction in supply current as compared to the JFET equipped electret microphone. Microphone supply current 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.

The LMV1032 series offers low output impedance over the voice bandwidth, excellent power supply rejection (PSRR), and stability over temperature.

The devices are offered in space saving 4-bump ultra thin micro SMD (TM) lead free packages and are thus ideally suited for the form factor of miniature electret microphone packages. These extremely miniature packages have the Large Dome Bump (LDB) technology. This micro SMD technology is designed for microphone PCBs requiring 1 kg adhesion criteria.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM * LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMV1032UPX-06CMOS7013906008625005244736730
LMV1032UPX-15CMOS7013906008625005244736730
LMV1032UPX-25CMOS7013906008625005244736730
LMV1032UR-15CMOS7013906008625005244736730
LMV1032UR-25CMOS7013906008625005244736730
LMV1032URX-15CMOS7013906008625005244736730
LMV1032URX-25CMOS7013906008625005244736730

Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
Microphone Amplifiers Resources 10 Kbytes 7-Mar-2007 View    

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Jan-2009]