TPA6130A2RTJR vs NJM2113M
| Part Number |
|
|
| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | NJR Corporation/NJRC |
| Description | IC AMP CLASS AB STER 290MW 20QFN | IC AMP CLASS AB MONO 400MW 8DMP |
| Package | -Reel® | Tape & Reel (TR) |
| Series | DirectPath™ | - |
| Type | Class AB | Class AB |
| Features | Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control | Standby |
| Voltage - Supply | 2.5V ~ 5.5V | 2V ~ 16V |
| Operating Temperature | -40°C ~ 85°C (TA) | -20°C ~ 75°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-WFQFN Exposed Pad | 8-SOIC (0.209\", 5.30mm Width) |
| Supplier Device Package | 20-QFN (4x4) | 8-DMP |
| Output Type | Headphones, 2-Channel (Stereo) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 290mW x 1 @ 16Ohm; 138mW x 2 @ 16Ohm | 400mW x 1 @ 100Ohm |
-
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.
-
2. 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.
-
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.
