LMV1012-07 ,Analog Pre-Amplified IC’s for High Gain MicrophonesElectrical Characteristics (Note 3)Unless otherwise specified, all limits guaranteed for T = 25˚C, ..
LMV1012TP-15 ,Analog Pre-Amplified IC's for High Gain MicrophonesApplicationsfor 1.0 mm canisters and thicker ECM canisters. Theseextremely miniature packages are d ..
LMV1012TP-25 ,Analog Pre-Amplified IC's for High Gain MicrophonesLMV1012 Analog Series Pre-Amplified IC’s for High Gain 2-Wire MicrophonesAugust 2004LMV1012 Analog ..
LMV1012TPX-15 ,Analog Pre-Amplified IC's for High Gain MicrophonesApplicationsfor 1.0 mm canisters and thicker ECM canisters. Theseextremely miniature packages are d ..
LMV1012TPX-15 ,Analog Pre-Amplified IC's for High Gain MicrophonesElectrical Characteristics (Note 3)Unless otherwise specified, all limits guaranteed for T = 25˚C, ..
LMV1012TPX-25 ,Analog Pre-Amplified IC's for High Gain MicrophonesElectrical Characteristics (Note 3) (Continued)Unless otherwise specified, all limits guaranteed fo ..
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LMV1012-07
Pre-Amplified IC’s for High Gain 2-Wire Microphones
LMV1012 Analog Series:
Pre-Amplified IC’s for High Gain 2-Wire Microphones
General DescriptionThe LMV1012isan audio amplifier seriesfor small form
factor electret microphones. This 2-wire portfoliois designed replace the JFET amplifier currently being used. The
LMV1012 seriesis ideally suitedfor applications requiring
high signal integrityinthe presenceof ambientorRF noise,
suchasin cellular communications. The LMV1012 audio
amplifiers are guaranteedto operate overa 2.2Vto 5.0V
supply voltage range with fixed gainsof 7.8 dB, 15.6 dB,
20.9 dB, and 23.8 dB. The devices offer excellent THD, gain
accuracy and temperature stabilityas comparedtoa JFET
microphone.
The LMV1012 series enablesa two-pin electret microphone
solution, which provides direct pin-to-pin compatibility with
the existing JFET market.
The devices are offeredin extremely thin space saving
4-bump micro SMD packages. The LMV1012XPis designed
for 1.0 mm canisters and thicker ECM canisters. These
extremely miniature packages are designedfor electret con-
denser microphones (ECM) form factor.
Features(Typical LMV1012-15, 2.2V supply,RL= 2.2 kΩ,C=2.2µF,
VIN =18mVPP, unless otherwise specified) Supply voltage 2V-5V Supply current <180µA Signalto noise ratio (A-weighted) 60dB Output voltage noise (A-weighted) −89 dBV Total harmonic distortion 0.09% Voltage gain LMV1012-07 7.8dB LMV1012-15 15.6dB LMV1012-20 20.9dB LMV1012-25 23.8dB Temperature range −40˚Cto 85˚C Offeredin 4-bump micro SMD packages
Applications Cellular phones Headsets Mobile communications Automotive accessories PDAs Accessory microphone products
Schematic DiagramBuilt-In Gain Electret Microphone
August 2004
LMV1012
Analog
Series
Pre-Amplified
IC’
for
High
Gain
2-W
ire
Microphones
