LM4875MX ,750mW Audio Power Amplifier with DC Volume Control and Headphone SwitchElectrical Characteristics” state DC andAC
LM4876M ,1.1W Audio Power Amplifier with Logic Low ShutdownGeneral Description Key SpecificationsThe LM4876 is a single 5V supply bridge-connected audioj THD+ ..
LM4876MM ,1.1W Audio Power Amplifier with Logic Low Shutdownelectrical specifications under particular test conditions thatguaranteespecificperformancelimits.T ..
LM4876MMX ,1.1W Audio Power Amplifier with Logic Low ShutdownLM4876 1.1W Audio Power Amplifier with Logic Low ShutdownMarch 2003LM48761.1W Audio Power Amplifier ..
LM4876MX ,1.1W Audio Power Amplifier with Logic Low ShutdownGeneral Description Key SpecificationsThe LM4876 is a single 5V supply bridge-connected audioj THD+ ..
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LP2985-50DBVTG4 ,Single Output LDO, 150mA, Fixed(5.0V), 1.5% Tolerance, Low Quiescent Current, Low Noise 5-SOT-23 -40 to 125
LP2985A-18DBVR ,13
LP2985A-18DBVR ,13
LP2985A-18DBVR ,13
LP2985A-18DBVRG4 ,Single Output LDO, 150mA, Fixed(1.8V), 1.0% Tolerance, Low Quiescent Current, Low Noise 5-SOT-23 -40 to 125
LP2985A-18DBVRG4 ,Single Output LDO, 150mA, Fixed(1.8V), 1.0% Tolerance, Low Quiescent Current, Low Noise 5-SOT-23 -40 to 125
LM4875M-LM4875MM-LM4875MMX-LM4875MX
750mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4875
750 mW Audio Power Amplifier with DC Volume Control
and Headphone Switch
General DescriptionThe LM4875isa mono bridged audio power amplifier with voltage volume control. The LM4875is capableof deliv-
ering 750mWof continuous average power intoan8Ω load
with less than1% THD when poweredbya5V power supply.
Switching between bridged speaker mode and headphone
(single ended) modeis accomplished using the headphone
sense pin.To conserve powerin portable applications, the
LM4875’s micropower shutdown mode(IQ= 0.7µA, typ)is
activated when less than 300mVis appliedtotheDC Vol/SD
pin.
Boomer audio power amplifiers are designed specificallyto
provide high power audio output while maintaining high fidel-
ity. They require few external components and operateon
low supply voltages.
Applications GSM phones and accessories, DECT, office phones Hand held radio Other portable audio devices
Key Specifications POat 1.0% THD+N into8Ω 750mW (typ) POat 10% THD+N into8Ω 1W (typ) Shutdown current 0.7µA(typ) Supply voltage range 2.7Vto 5.5V
Features Precision DC voltage volume control Headphone amplifier mode “Click and pop” suppression Shutdown control when volume controlpinis low Thermal shutdown protection
Typical Application Connection Diagram
Small Outline Package (SO)
Mini Small Outline Package (MSOP)Top View
Order Number LM4875M, LM4875MM
SeeNS Package Number M08A, MUA08A
FIGURE1. Typical Audio Amplifier
Application Circuit
January 2002
LM4875
Audio
Power
Amplifier
with
olume
Control
and
Headphone
Switch
