LM4889 ,1 Watt Audio Power AmplifierApplicationsThe LM4889 is unity-gain stable and can be configured byexternal gain-setting resistors ..
LM4889ITL ,1 Watt Audio Power Amplifierfeatures a low-power consumption shutdownturn-on and turn-off transitionsmode, which is achieved by ..
LM4889ITL ,1 Watt Audio Power AmplifierFeaturesprovide high quality output power with a minimal amount ofexternal components. The LM4889 d ..
LM4889ITLX ,1 Watt Audio Power AmplifierGeneral Description Key SpecificationsThe LM4889 is an audio power amplifier primarily designedj Im ..
LM4889LD ,1 Watt Audio Power AmplifierApplicationsexternal gain-setting resistors.n Mobile Phonesn PDAsn Portable electronic devicesTypic ..
LM4889LD ,1 Watt Audio Power AmplifierLM4889 1 Watt Audio Power AmplifierJune 2003LM48891 Watt Audio Power Amplifier
LP2985AIM5-3.8 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsuse absolute minimum board space.n Cellular PhonePrecision Output: 1% tolerance output ..
LP2985AIM5-4.0 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMDPackagesMarch ..
LP2985AIM5-4.0/NOPB ,Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and DSBGA Packages 5-SOT-23 -40 to 125 SNVS018Y–MARCH 2000–REVISED DECEMBER 2016Changes from Revision U (April 2013) to Revision V Page• ..
LP2985AIM5-4.8 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMDPackagesMarch ..
LP2985AIM5-5.0 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMDPackagesMarch ..
LP2985AIM5-5.0/NOPB ,Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and DSBGA Packages 5-SOT-23 -40 to 125Features... 18 Application and Implementation...... 142 Applications..... 18.1 Application Informat ..
LM4889
1 Watt Audio Power Amplifier
LM4889 Watt Audio Power Amplifier
General DescriptionThe LM4889isan audio power amplifier primarily designed
for demanding applicationsin mobile phones and other por-
table communication device applications.Itis capableof
delivering1 wattof continuous average powertoan8Ω BTL
load with less than 2% distortion (THD+N) froma 5VDC
power supply.
Boomer audio power amplifiers were designed specificallyto
provide high quality output power witha minimal amountof
external components. The LM4889 doesnot require output
coupling capacitorsor bootstrap capacitors, and thereforeis
ideally suitedfor mobile phone and other low voltage appli-
cations where minimal power consumptionisa primaryre-
quirement.
The LM4889 featuresa low-power consumption shutdown
mode, whichis achievedby driving the shutdownpin with
logic low. Additionally,the LM4889 featuresan internal ther-
mal shutdown protection mechanism.
The LM4889 contains advanced pop& click circuitry which
eliminates noises which would otherwise occur during
turn-on and turn-off transitions.
The LM4889is unity-gain stable and canbe configuredby
external gain-setting resistors.
Key Specifications Improved PSRRat 217Hz,5- 3.3V 75dB Power Outputat 5.0V& 2% THD 1.0W(typ.) Power Outputat 3.3V& 1% THD 400mW(typ.) Shutdown Currentat3.3& 2.6V 0.01μA(typ.)
Features Availablein space-saving MSOP, SOIC, and micro SMD
packages Ultra low current shutdown mode (3.3to 2.6V- 0.01μA) Can drive capacitive loadsupto 500pF Improved pop& click circuitry eliminates noises during
turn-on and turn-off transitions 2.2- 5.5V operation No output coupling capacitors, snubber networksor
bootstrap capacitors required Unity-gain stable External gain configuration capability
Applications Mobile Phones PDAs Portable electronic devices
Typical ApplicationDS200358-1
FIGURE1. Typical Audio Amplifier Application CircuitMay 2002
LM4889
att
Audio
Power
Amplifier
