TAS5612APHDR vs TPA3100D2IRGZRQ1
| Part Number |
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC AMP D MONO/STER 250W 64HTQFP | IC AMP CLASS D STER 21.8W 48VQFN |
| Package | Cut Tape (CT) | Bulk |
| Series | PurePath™ HD | Automotive, AEC-Q100 |
| Type | Class D | Class D |
| Features | Depop, Jinftrytal Inputs, Short-Circuit and Thermal Protection, Shutdown | Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown |
| Voltage - Supply | 16V ~ 34.1V | 10V ~ 26V |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-TQFP Exposed Pad | 48-VFQFN Exposed Pad |
| Supplier Device Package | 64-HTQFP (14x14) | 48-VQFN (7x7) |
| Output Type | 1-Channel (Mono) or 2-Channel (Stereo) | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 250W x 1 @ 2Ohm; 165W x 2 @ 3Ohm | 21.8W x 2 @ 8Ohm |
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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. How can I improve the thermal performance of my audio amplifier?
Audio amplifiers generate heat when they operate, especially Class A and Class AB amplifiers. Ways to improve heat dissipation include using a larger heat sink, adding a fan, or using a more efficient Class D amplifier. A good thermal design will improve the performance and life of the amplifier.

