LM4888SQ ,Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D EnhancementGeneral Description Key SpecificationsThe LM4888 is a dual bridge-connected audio power ampli-j P a ..
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 ..
LP2985AIM5-3.3 NOPB ,Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and DSBGA Packages 5-SOT-23 -40 to 125Features.... 1• Deleted all information re: DSBGA package - it is no longer available 1• Deleted D ..
LP2985AIM5-3.5 ,Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packagesapplications.n Smallest possible size (SOT-23, micro SMD package)™Using an optimized VIP (Verticall ..
LP2985AIM5-3.6 ,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 ..
LP2985AIM5-3.8 ,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• ..
LM4888-LM4888SQ
Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D Enhancement
LM4888
Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D
Enhancement
General DescriptionThe LM4888isa dual bridge-connected audio power ampli-
fier which, when connectedtoa5V supply,will deliver 2.1W
toa4Ω load (Note1)or 2.4Wtoa3Ω load (Note2) with less
than 1.0% THD+N. user selectable “National 3D Enhancement” mode pro-
vides enhanced stereo imaging.
The LM4888SQ also has two separate HP (headphone)
enable inputs, each having different logic level thresholds.
Either HP enable input activates the single ended head-
phone mode and disables the BTL output mode. The HP
Sense inputisfor use witha normal stereo headphone jack.
The remaining input,HP Logic, accepts standard logic level
thresholds.
Boomer audio power amplifiers were designed specificallyto
provide high quality output power froma surface mount
package while requiring few external components.To sim-
plify audio system design, the LM4888SQ combines dual
bridge speaker amplifiers and stereo headphone amplifiers one chip.
The LM4888SQ featuresa low-power consumption shut-
down mode and thermal shutdown protection.It also utilizes
circuitryto reduce “clicks and pops” during device turn-on.
Note1:An LM4888SQthathas been properly mountedtoa circuit board
will deliver 2.1Winto4Ω.Seethe Application Information sectionsfor further
information concerningthe LM4888SQ.
Note2:An LM4888SQthathas been properly mountedtoa circuit board
and forced-air cooledwill deliver 2.4Winto3Ω.
Key SpecificationsPOat 1% THD+N, VDD =5V =3Ω 2.4W (typ) =4Ω 2.1W (typ) =8Ω 1.3W (typ) Single-ended mode THD+N 75mW into 32Ω (5V, 1kHz)
0.01% (typ) Shutdown current 0.04µA (typ) Supply voltage range 2.7Vto 5.5V PSRRat 217Hz 85dB (typ)
Features National3D Enhancement Selectable headphone enable modes Stereo headphone amplifier mode Improved “click and pop” suppression circuitry Thermal shutdown protection circuitry PCB area-saving SQ package Micro power shutdown mode
Applications Cell phones Multimedia monitors Portable and desktop computers Portable audio systems
Connection Diagrams
LM4888SQ LM4888SQ Top MarkTop View
Order Number LM4888SQ
SeeNS Package Number SQA24A
201116C6
Top View= Fab Code= Assembly Plant Code= Date Code= Die TraceabilityJune 2005
LM4888
Dual
2.1W
Audio
Amplifier
Plus
Stereo
Headphone
Enhancement
