LM4853LD/NOPB vs AN7135-CM
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | National Semiconductor | Panasonic Electronic Components |
| Description | LM4853 MONO 1.5 W / STEREO 300MW | IC AMP CLASS AB STER 7.5W 12SIL |
| Package | Cut Tape (CT) | -Reel® |
| Series | Boomer® | - |
| Type | Class AB | Class AB |
| Features | Depop, Shutdown, Thermal Protection | Standby, Thermal Protection |
| Voltage - Supply | 2.4V ~ 5.5V | 5V ~ 18V |
| Operating Temperature | -40°C ~ 85°C (TA) | -30°C ~ 75°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 14-WFDFN Exposed Pad | 12-SIP + Tab |
| Supplier Device Package | 14-WSON (4x4) | 12-SIL |
| Output Type | 1-Channel (Mono) with Stereo Headphones | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 1.9W x 1 @ 3Ohm; 300mW x 2 @ 8Ohm | 7.5W x 2 @ 3Ohm |
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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. 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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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.
