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CS35L41 データシート(PDF) 1 Page - Cirrus Logic

部品番号. CS35L41
部品情報  11 Volt Boosted Class D Audio Amplifier with DSP
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メーカー  CIRRUS [Cirrus Logic]
ホームページ  http://www.cirrus.com
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CS35L41 Datasheet(HTML) 1 Page - Cirrus Logic

   
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CS35L41
11 Volt Boosted Class D Audio Amplifier with DSP
Featuring Speaker Protection, Audio Enhancement
and Advanced Battery Management
Maximize loudness with 11 V output and
SoundClear® Playback speaker protection
Enrich sound quality with integrated DSP
and SoundClear Playback enhancement
Minimize power consumption with
Class H boost and low quiescent power
Intelligently regulate battery current
with predictive battery management
Save space with 5.64 mm2 package footprint
System Features
• Boosted output – 11 V
• High output power – 5.3 W
• Idle channel noise – 9 uV
• Low quiescent power – 6.7 mW
• Integrated DSP
• SoundClear® Playback enhancement
and speaker protection
• Advanced battery management
system
• I2S, I2C, PDM inputs
• Supply voltage – 2.5 V to 5.5 V
• Stereo configuration using two
CS35L41 devices
• Space Saving 30-ball WLCSP
package – 5.64 mm2 footprint,
0.4 mm pitch
Product Block Diagram
Clocking
11 V Digital Boost
Converter
Class H
Class D Amp
Power
Monitoring
DSP
Enhancement
Speaker Protection
Battery Protection
Serial Audio
Control
ADC
Speaker
Monitoring
ADC
CS35L41
Product Overview
The CS35L41 is the industry’s first 55 nm smart audio amplifier solution
with integrated DSP. This device features a mono 5.3 W boosted Class D
amplifier that provides very loud audio without compromising sound quality,
high efficiency and the lowest noise and quiescent power consumption
of any amplifier in its class. Voltage and current sensing feedback at the
speaker output and battery improves the accuracy of the amplifier and
integrated algorithms. Speaker protection algorithms enable maximum
loudness by allowing the amplifier to safely drive high output power while
ensuring that the speaker’s thermal and excursion limits are not exceeded.
Audio enhancement algorithms provide equalization, compression and
psychoacoustic improvements to fine-tune the speaker to improve clarity,
loudness and frequency response while maintaining the sound quality of
the audio. A cutting-edge battery management system adapts to speaker,
audio and battery conditions to intelligently regulate battery current without
sacrificing loudness or audio quality. The CS35L41 provides this level of
performance within a package smaller than any smart amplifier in its class,
and almost half the size of other leading DSP smart amps.


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