LM48822TL/NOPB vs TAS2552YFFR
| Part Number |
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | National Semiconductor | Texas Instruments |
| Description | LM48822 GND-REF ULTRA HIGH PSRR | IC AMP D/G MONO 4W 30DSBGA |
| Package | Bulk | -Reel® |
| Series | Boomer® | - |
| Type | Class AB | Class D, Class G |
| Features | Depop, Differential Inputs, I²C, Mute, Shutdown, Volume Control | Short-Circuit and Thermal Protection |
| Voltage - Supply | 2.4V ~ 5.5V | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-WFBGA, DSBGA | 30-UFBGA, DSBGA |
| Supplier Device Package | 16-DSBGA (2.5x2.12) | 30-DSBGA |
| Output Type | Headphones, 2-Channel (Stereo) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 40mW x 2 @ 32Ohm | 4W x 1 @ 8Ohm |
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1. 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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2. 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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3. 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.
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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.
