LM4851ITLX ,Integrated Audio Amplifier SystemFeaturesThe LM4851
LM4851LQ ,Integrated Audio Amplifier SystemGeneral Description Key Specificationsn THD+N at 1kHz, 1.5W into 4Ω BTL (LQ) 1% (typ)The LM4851 is ..
LM4851LQ ,Integrated Audio Amplifier SystemLM4851 Integrated Audio Amplifier SystemDecember 2002LM4851Integrated Audio Amplifier System
LM4851LQX ,Integrated Audio Amplifier Systemapplications.Itdelivershighqualityoutput n Low shutdown current (0.1µA, typ)power from a surface-mo ..
LM4852ITLX ,Integrated Audio Amplifier Systemfeatures a 32 step digital volume control andn 60mW (typ) output power with stereo 32Ω SE loadseigh ..
LM4852LQ ,Integrated Audio Amplifier SystemGeneral Description Key Specificationsn THD+N at 1kHz, 1.1W into 8Ω BTL 1.0% (typ)The LM4852 is an ..
LP2981AIM5-3.8 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packagesapplications.n Guaranteed 100 mAoutput currentUsing an optimized VIP™ (Vertically Integrated PNP) p ..
LP2981AIM5-3.8 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsPrecision Output. 0.75% tolerance output voltages avail-n Cellular Phoneable (Agrade).n ..
LP2981AIM5-3.8. ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsPrecision Output. 0.75% tolerance output voltages avail-n Cellular Phoneable (Agrade).n ..
LP2981AIM5-4.0 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesApplicationsPrecision Output. 0.75% tolerance output voltages avail-n Cellular Phoneable (Agrade).n ..
LP2981AIM5-5.0 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesFeaturesn Ultra low dropout voltageThe LP2981 is a 100 mA, fixed-output voltage regulatordesigned s ..
LP2981AIM5X-2.5 ,Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesLP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD PackagesJanuary 2003LP ..
LM4851ITL-LM4851ITLX-LM4851LQ-LM4851LQX
Integrated Audio Amplifier System
LM4851
Integrated Audio Amplifier System
General DescriptionThe LM4851isan audio power amplifier system capableof
delivering 1.1W (typ)of continuous average power intoa
mono 8Ω bridged-tied load (BTL) with 1% THD+N and
115mW (typ) per channelof continuous average power into
stereo 32Ω BTL loads with 0.5% THD+N, usinga5V power
supply.
The LM4851 featuresa32 step digital volume control and
eight distinct output modes. The digital volume control and
output modes are programmed througha three-wire SPI
serial control interface, that allows flexibilityin routing and
mixing audio channels. The LM4851 has3 inputs: one pair
fora two-channel stereo signal and the thirdfora single-
channel mono input.
The LM4851is designedfor cellular phone, PDA, and other
portable handheld applications.It delivers high quality output
power froma surface-mount package and requires only five
external components.
The industry leading micro SMD package utilizes only 2mm 2.3mmof PCB space, makingthe LM4851the most space
efficient audio sub system available today.
Key Specifications THD+Nat 1kHz, 1.5W into4Ω BTL (LQ) 1% (typ) THD+Nat 1kHz, 1.1W into8Ω BTL 1% (typ) THD+Nat 1kHz, 115mW into 32Ω BTL 0.5% (typ) Single Supply Operation 2.6to 5.0V
Features Mono 1.1W (typ) and stereo 115mW (typ) output SPI programmable32 step digital volume control
(-40.5dBto +6dB) Eight distinct SPI programmable output modes micro-SMD and LLP surface mount packaging “Click and pop” suppression circuitry Thermal shutdown protection Low shutdown current (0.1µA, typ)
Applications Mobile phones PDAs
Typical ApplicationFIGURE1. Typical Audio Amplifier Application Circuit
December 2002
LM4851
Integrated
Audio
Amplifier
System
