LM4871LD/NOPB vs BD5467GUL-E2
| Part Number |
|
|
| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Rohm Semiconductor |
| Description | IC AMP CLASS AB MONO 3W 8WSON | IC AMP CLASS D MONO 700MW 9VCSP |
| Package | -Reel® | Tape & Reel (TR) |
| Series | Boomer® | - |
| Type | Class AB | - |
| Features | Shutdown, Thermal Protection | - |
| Voltage - Supply | 2V ~ 5.5V | - |
| Operating Temperature | -40°C ~ 85°C (TA) | - |
| Mounting Type | Surface Mount | - |
| Package / Case | 8-WDFN Exposed Pad | - |
| Supplier Device Package | 8-WSON (4x4) | - |
| Output Type | 1-Channel (Mono) | - |
| Max Output Power x Channels @ Load | 3W x 1 @ 3Ohm | - |
-
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.
-
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.
-
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.
-
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.
