LM3875TF ,High-Performance 56W Audio Power AmplifierFeaturesn 56W continuous average output power into 8ΩThe LM3875 is a high-performance audio power a ..
LM3876T ,High-Performance 56W Audio Power Amplifier with MuteFeaturesn 56W continuous average output power into 8ΩThe LM3876 is a high-performance audio power a ..
LM3876T ,High-Performance 56W Audio Power Amplifier with MuteFeaturesn 56W continuous average output power into 8ΩThe LM3876 is a high-performance audio power a ..
LM3876TF ,High-Performance 56W Audio Power Amplifier with MuteLM3876 Overture Audio Power Amplifier SeriesHigh-Performance 56W Audio Power Amplifier w/MuteAugust ..
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LMX1501AM ,PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal CommunicationsFeaturesYRF operation up to 1.1 GHzTheLMX1501AandtheLMX1511arehighperformancefre-Yquencysynthesizer ..
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LMX1501AMX ,PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal CommunicationsLMX1501A/LMX1511PLLatinum1.1GHzFrequencySynthesizerforRFPersonalCommunicationsNovember1995TMLMX1501 ..
LM3875TF
High-Performance 56W Audio Power Amplifier
LM3875 Overture™ Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General DescriptionThe LM3875isa high-performance audio power amplifier
capableof delivering 56Wof continuous average powerto8Ω load with 0.1% THD+N from 20Hzto 20kHz.
The performanceof the LM3875, utilizingits Self PeakIn-
stantaneous Temperature (˚Ke) (SPiKe™) protection cir-
cuitry, putsitina class above discrete and hybrid amplifiers providingan inherently, dynamically protected Safe Op-
erating Area (SOA).
SPiKe protection means that these
parts are completely safeguardedatthe output against ov-
ervoltage, undervoltage, overloads, causedby shortsto the
supplies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintainsan excellent signal-to-noise ratioof
greater than 95dB(min) witha typical low noise floorof
2.0µV.It exhibits extremely low THD+N valuesof 0.06%at
the rated output intothe rated load overthe audio spectrum,
and provides excellent linearity withan IMD (SMPTE) typical
ratingof 0.004%.
Features 56W continuous average output power into8Ω 100W instantaneous peak output power capability Signal-to-Noise Ratio >95dB (min) Output protection froma shortto groundortothe
suppliesvia internal current limiting circuitry Output over-voltage protection against transients from
inductive loads Supply under-voltage protection,not allowing internal
biasingto occur when |V+|+ |V−|≤ 12V, thus eliminating
turn-on and turn-off transients11 lead TO-220 package Wide supply voltage range: |V+|+ |V−|= 20Vto 84V
Applications Componentor compact stereos Self-powered speakers Surround-sound amplifiers High-end stereo TVs
Typical Application*Optional components dependent upon specific design requirements. Refertothe External Components Description sectionfora component function
description.
FIGURE1. Typical Audio Amplifier Application CircuitAugust 2000
LM3875
Overture
Audio
Power
Amplifier
Series
High-Performance
56W
Audio
Power
Amplifier
