TAS5707APHPR vs LM48903TLE/NOPB
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC AMP CLSS D STER 20.6W 48HTQFP | IC AMP CLASS D STER 2.8W 30DSBGA |
| Package | Tube | Tape & Reel (TR) |
| Series | - | Boomer® |
| Type | Class D | Class D |
| Features | Depop, Jinftrytal Inputs, I²C, I²S, Short-Circuit and Thermal Protection, Shutdown, Volume Control | Depop, I²S, Short Circuit, Thermal Protection |
| Voltage - Supply | 8V ~ 24V | 2.7V ~ 5.5V |
| Operating Temperature | 0°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 48-PowerTQFP | 30-WFBGA, DSBGA |
| Supplier Device Package | 48-HTQFP (7x7) | 30-DSBGA |
| Output Type | 2-Channel (Stereo) | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 20.6W x 2 @ 8Ohm | 2.8W x 2 @ 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. How to choose a suitable audio amplifier?
When choosing an audio amplifier, factors such as output power, total harmonic distortion (THD), signal-to-noise ratio (SNR), efficiency, impedance matching (speaker impedance), and power consumption should be taken into consideration to ensure that it is well-matched with the speakers and audio source equipment.
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3. 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.
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4. What should the frequency response range of an audio amplifier be?
The frequency response range of a good quality audio amplifier is usually between 20Hz and 20kHz, which is the typical frequency range that the human ear can hear. A wider frequency response ensures that the audio amplifier can accurately reproduce both low and high frequency details.
