LM4863LQ/NOPB vs TAS5411QPWPRQ1
| Part Number |
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC AMP CLASS AB STER 3.2W 24WQFN | IC AMP CLASS D MONO 8W 16HTSSOP |
| Package | Tape & Reel (TR) | -Reel® |
| Series | Boomer® | Automotive, AEC-Q100 |
| Type | Class AB | Class D |
| Features | Depop, Shutdown, Thermal Protection | Short Circuit Protection |
| Voltage - Supply | 2V ~ 5.5V | 4.5V ~ 18V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 24-WFQFN Exposed Pad | 16-PowerTSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | 24-WQFN (4x5) | 16-HTSSOP |
| Output Type | 2-Channel (Stereo) with Stereo Headphones | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 3.2W x 2 @ 3Ohm; 440mW x 2 @ 8Ohm | 8W x 1 @ 4Ohm |
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1. What is an audio amplifier and what does it do?
An audio amplifier is a device that amplifies an audio signal, such as music or speech, to a higher voltage or current level to drive speakers or headphones, ensuring that the sound remains clear and accurate when played at higher volumes.
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2. What types of audio amplifiers are available?
Common types of audio amplifiers include:
Class A amplifiers: have the highest sound quality, but are less efficient.
Class B amplifiers: More efficient, but may produce crossover distortion.
Class AB amplifiers: between Class A and Class B with good balance.
Class D amplifier: highest efficiency, suitable for portable devices, but slightly lower sound quality. -
3. What is the Total Harmonic Distortion (THD) of an audio amplifier?
Total Harmonic Distortion (THD) is the distortion component introduced by an audio amplifier during the signal amplification process. the lower the THD, the closer the amplified audio signal will be to the original signal, and usually high quality audio amplifiers have a THD value of less than 1%.
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4. What is the signal-to-noise ratio (SNR) of an audio amplifier?
Signal-to-noise ratio (SNR) is a measure of the ratio of the audio signal to the background noise, with higher values indicating less noise in the audio signal. A high SNR usually means clearer sound output.
