TPA6100A2DGKR vs LM4875MM/NOPB
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC AMP CLASS AB STER 50MW 8VSSOP | IC AMP CLASS AB MONO 1W 8VSSOP |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | - | Boomer® |
| Type | Class AB | Class AB |
| Features | Depop, Short-Circuit and Thermal Protection, Shutdown | Depop, Mute, Shutdown, Thermal Protection, Volume Control |
| Voltage - Supply | 1.6V ~ 3.6V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) |
| Supplier Device Package | 8-VSSOP | 8-VSSOP |
| Output Type | Headphones, 2-Channel (Stereo) | 1-Channel (Mono) with Mono Headphones |
| Max Output Power x Channels @ Load | 50mW x 2 @ 16Ohm | 1W x 1 @ 8Ohm; 110mW x 1 @ 32Ohm |
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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 a Class D audio amplifier and what are its advantages?
Class D audio amplifiers work through Pulse Width Modulation (PWM) technology and have extremely high efficiency (typically up to 90% or higher), making them suitable for use in portable audio equipment or high-efficiency sound systems. It generates less heat because it reduces energy consumption.
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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. 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.
