MAX9722AETE+C2N vs MAX4411BETP+
| Part Number |
|
|
| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Maxim Integrated | Maxim Integrated |
| Description | IC AMP AUDIO .13W STER AB 16TQFN | IC AMP CLASS AB STER 80MW 20TQFN |
| Package | 16-WFQFN Exposed Pad | Tube |
| Series | DirectDrive? | DirectDrive® |
| Type | Class AB | Class AB |
| Features | Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown | Depop, Short-Circuit and Thermal Protection, Shutdown |
| Voltage - Supply | 2.4 V ~ 5.5 V | 1.8V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-WFQFN Exposed Pad | 20-WFQFN Exposed Pad |
| Supplier Device Package | 16-TQFN (3x3) | 20-TQFN (4x4) |
| Output Type | Headphones, 2-Channel (Stereo) | Headphones, 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 130mW x 2 @ 32 Ohm | 80mW x 2 @ 16Ohm |
-
1. What types of audio amplifiers are available?
Common types of audio amplifiers include:
Class A amplifiers: have the highest sound quality, but are less efficient.
Class B amplifiers: More efficient, but may produce crossover distortion.
Class AB amplifiers: between Class A and Class B with good balance.
Class D amplifier: highest efficiency, suitable for portable devices, but slightly lower sound quality. -
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.
-
3. 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.
-
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.
