LME49600TS/NOPB vs LM3886T/NOPB
| Part Number |
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | National Semiconductor |
| Description | IC AMP CLASS AB MONO 500MW TO263 | LM3886 68W, 1 CH, 20-94V SUPPLY |
| Package | Tube | Bulk |
| Series | - | Overture™ |
| Type | Class AB | Class AB |
| Features | Short-Circuit and Thermal Protection | Mute, Short-Circuit and Thermal Protection |
| Voltage - Supply | ±2.25V ~ 18V | 20V ~ 84V, ±10V ~ 42V |
| Operating Temperature | -40°C ~ 85°C (TA) | -20°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-11 (Formed Leads) |
| Supplier Device Package | DDPAK/TO-263-5 | TO-220-11 |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 500mW x 1 @ 32Ohm | 68W x 1 @ 4Ohm |
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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 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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3. 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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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.
