LM4673TM/NOPB vs LMV1032UP-06/NOPB
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | National Semiconductor | National Semiconductor |
| Description | LM4673 FILTERLESS, 2.65W, MONO, | LMV1032 AMPLIFIERS FOR 3-WIRE AN |
| Package | Bulk | Bulk |
| Series | Boomer®, PowerWise® | - |
| Type | Class D | Class AB |
| Features | Depop, Differential Inputs, PWM, Short-Circuit and Thermal Protection, Shutdown | Microphone |
| Voltage - Supply | 2.4V ~ 5.5V | 1.7V ~ 5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 9-WFBGA, DSBGA | 4-XFBGA, DSBGA |
| Supplier Device Package | 9-DSBGA | 4-DSBGA |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 2.65W x 1 @ 4Ohm | - |
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1. What is a power amplifier and how is it different from an audio amplifier?
A power amplifier is a type of audio amplifier designed to drive high-power loads such as speakers. It is capable of amplifying audio signals to a sufficient power output to drive speakers to produce greater volume.
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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.
