LM4820M-6 ,Fixed Gain 1 Watt Audio Power AmplifierFeaturesprovide high quality output power with a minimal amount ofexternal components. The LM4820-6 ..
LM4820MX-6 ,Fixed Gain 1 Watt Audio Power Amplifierfeatures an internaln 2.0 - 5.5V operationthermal shutdown protection mechanism.n No output couplin ..
LM4830M ,Two-Way Audio Amplification System with Volume ControlapplicationsConnection DiagramDual-In-Line andSmall Outline PackagesDS012677-2Top ViewOrder Number ..
LM4830M ,Two-Way Audio Amplification System with Volume ControlFeaturesis a 30 dB attenuator in front of a bridged power amplifiern 4-bit digital control for 30 d ..
LM4831VF ,Multimedia Computer Audio ChipElectrical Characteristics(Notes 1, 2) The following specifications apply for V = 5V, R =8Ω andf=1 ..
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LP2980IM5-3.0 ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD PackagesLP2980 Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD PackagesJanuary 2003LP2 ..
LP2980IM5-3.0/NOPB ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 Package 5-SOT-23 -40 to 125Features... 18 Application and Implementation...... 142 Applications..... 18.1 Application Informat ..
LP2980IM5-3.1 ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD Packagesapplications.n Guaranteed 50 mAoutput currentUsing an optimized VIP™ (Vertically Integrated PNP) pr ..
LP2980IM5-3.1 ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD PackagesLP2980 Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD PackagesJanuary 2003LP2 ..
LP2980IM5-3.2 ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD Packagesapplications.n Guaranteed 50 mAoutput currentUsing an optimized VIP™ (Vertically Integrated PNP) pr ..
LP2980IM5-3.3 ,Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2980 is a 50 mA, fixed-output voltage regulator de-signed ..
LM4820IBP-6-LM4820M-6-LM4820MX-6
Fixed Gain 1 Watt Audio Power Amplifier
LM4820-6
Fixed Gain1 Watt Audio Power Amplifier
General DescriptionThe LM4820-6isan audio power amplifier primarily de-
signedfor demanding applicationsin mobile phones and
other portable communication device applications.Itis ca-
pableof delivering1 wattof continuous average powertoan BTL load with less than1% distortion (THD+N)at 6dBof
BTL gain froma 5VDC power supply.
Boomer audio power amplifiers were designed specificallyto
provide high quality output power witha minimal amountof
external components. The LM4820-6 doesnot require input
and gain resistors, output coupling capacitorsor bootstrap
capacitors, and thereforeis ideally suitedfor mobile phone
and other low voltage applications where minimal parts
count and low power consumptionisa primary requirement.
The LM4820-6 featuresa low-power consumption shutdown
mode, whichis achievedby driving the shutdownpin with
logic low. Additionally, the LM4820-6 featuresan internal
thermal shutdown protection mechanism.
The LM4820-6 contains advanced pop& click circuitry which
eliminates noises which would otherwise occur during
turn-on and turn-off transitions.
Key Specifications Improved PSRRat 217Hz 62dB Power Outputat 5.0V& 1% THD 1.0W(typ.) Power Outputat 3.3V& 1% THD 400mW(typ.) Shutdown Current 0.1µA(typ.)
Features Fixed 6dB BTL voltage gain Availablein space-saving packages micro SMD, MSOP
and SOIC Ultra low current shutdown mode Can drive capacitive loadsupto 500pF Improved pop& click circuitry eliminates noises during
turn-on and turn-off transitions 2.0- 5.5V operation No output coupling capacitors, snubber networksor
bootstrap capacitors required External gain configuration still possible
Applications Mobile Phones PDAs Portable electronic devices
Typical ApplicationFIGURE1. Typical Audio Amplifier Application Circuit
October 2002
LM4820-6
Fixed
Gain
att
Audio
Power
Amplifier
