LM4841MH ,Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone DriveGeneral Description Key Specificationsn P at 1% THD+NThe LM4841 is a monolithic integrated circuit ..
LM4841MH ,Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone DriveBlock Diagram 2LM4841LM4841Absolute Maximum Ratings (Note 10) θ (typ)—LQA028A 3˚C/WJCθ (typ)—LQA028 ..
LM4841MT ,Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone DriveApplicationsconsumption shutdown mode (Shutdown Low), and both an Portable and Desktop Computerspow ..
LM4842LQ ,Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone DriveApplicationsn Portable and Desktop Computersn Multimedia Monitorsn Portable Radios, PDAs, and Porta ..
LM4842MH ,Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone Drivefeatures an externally controlled, low-powern 2 Channel Stereo Input MUXconsumption shutdown mode ( ..
LM4842MT ,Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone DriveGeneral Description Key Specificationsn P at 1% THD+NThe LM4842 is a monolithic integrated circuit ..
LP2981A-29DBVR ,100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN
LP2981A-30DBVR ,100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN
LP2981A-30DBVT ,100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN
LP2981A-33DBVR ,100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN
LP2981A-33DBVRG4 ,Single Output LDO, 100mA, Fixed(3.3V), Shutdown, 0.75% Tolerance 5-SOT-23 -40 to 125
LP2981A-33DBVRG4 ,Single Output LDO, 100mA, Fixed(3.3V), Shutdown, 0.75% Tolerance 5-SOT-23 -40 to 125
LM4841LQ-LM4841MH-LM4841MT
Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive
LM4841
Stereo 2W Amplifiers with DC Volume Control,
Transient Free Outputs, and Cap-less Headphone Drive
General DescriptionThe LM4841isa monolithic integrated circuit that provides volume control and stereo bridged audio power amplifi-
ers capableof producing 2W into 4Ω (Note1)or 2.2W into (Note2) with less than 1.0% THD.
The LM4841 uses advanced, latest generation circuitryto
eliminateall tracesof clicks and pops when the supply
voltagesis first applied. The amplifier hasa headphone-
amplifier-select inputpin thatis usedto switchthe amplifiers
from bridgeto single-ended modefor driving headphones.A
new circuit topology eliminates headphone output coupling
capacitors (patent pending).
Boomer® audio integrated circuits are designed specifically provide high quality audio while requiringa minimum
amountof external components. The LM4841 incorporatesa volume control, stereo bridged audio power amplifiers
anda selectable gainor bass boost, makingit optimally
suitedfor multimedia monitors, portable radios, desktop, and
portable computer applications.
The LM4841 featuresan externally controlled, low-power
consumption shutdown mode (Shutdown Low), and botha
power amplifier and headphone mutefor maximum system
flexibility and performance.
Note1: When properly mountedtothe circuit board, LM4841MH and
LM4841LQwill deliver2W into4Ω.The LM4841MT willdeliver 1.1Winto8Ω.
Seethe Application Information sectionfor LM4841MH usage information.
Note2:An LM4841MHthathas been properly mountedtothe circuit board
and forced-air cooledwill deliver 2.2Winto3Ω.
Key Specifications POat 1% THD+N into3Ω (MH and LQ) 2.2W (typ) into4Ω( MH and LQ) 2.0W (typ) into8Ω (MT, MH, and LQ) 1.1W (typ) Single-ended THD+Nat 85mW into 32Ω 1.0%(typ) Shutdown current 0.7µA (typ)
Features Stereo headphone amplifier mode that eliminates the
Output Coupling Capacitors (patent pending) Acoustically Enhanced DC Volume Control Taper System Beep Detect Stereo switchable bridged/single-ended power amplifiers Selectable internal/external gain and bass boost Advanced “click and pop” suppression circuitry Thermal shutdown protection circuitry
Applications Portable and Desktop Computers Multimedia Monitors Portable Radios, PDAs, and Portable TVs
Connection Diagrams
TSSOP PackageTop View
Order Number LM4841MTor LM4841MH
SeeNS Package Number MTC28for TSSOP and MXA28Afor Exposed-DAP TSSOP
August 2002
LM4841
Stereo
Amplifiers
with
olume
Control,T
ransient
Free
Outputs,
and
Cap-less
Headphone
Drive
