The datasheet of each and every electronic component is needed when you are working on them. To avoid any connection issues or errors in connection can be sorted out by using this simple guide. Let’s checkout the important things before you are going to build an amplifier circuit using 4440IC datasheet.
Introduction to LA4440IC
The LA4440 IC is a common and widely available semiconductor component in electronic markets. In most of the audio amplifiers such as Radio, Tv and some kind of CD players using this IC to amplify the audio signals. The main point of using this IC in amplifier circuits is because of its low Distortion and high quality audio output. The other key features of this IC is higher output power, built in protection and its packaging.
The LA4440 IC comes with the dual dip line packaging (DIP). The total number of pins are 14. The DIP packaging is specially designed for the easy insertion into the PCB holes and temperature management. Because the IC has a big heat dissipation area so the IC gets cool quickly.Â
4440 IC Pinout
Pin Configuration
| Pin Number | Pin Name |
|---|---|
| 1 | NF1 |
| 2 | INPUT 1 |
| 3 | PREAMP GND |
| 4 | AUDIO MUTING |
| 5 | DC |
| 6 | INPUT 2 |
| 7 | NF2 |
| 8 | GND 2 |
| 9 | BS2 |
| 10 | OUTPUT 2 |
| 11 | VCC |
| 12 | OUTPUT 1 |
| 13 | BS1 |
| 14 | GND1 |
Features
- 6 watt on stereo channel.
- 19 watts on bridge mode.
- low number of external components.
- Low pop up sound from speaker when on/off amplifier.
- Good channel separation feature.
- Low distortion with wide range of frequency.
- Built in audio muting and thermal protection.
- Pin to pin short protection.
Additional features
The input of the ic is designed with a PNP transistor, the input bias is zero so there is no coupling capacitor required. You can directly connect the audio signal to it.
LA4440 Stereo Amplifier Circuit
Bridge Circuit Diagram
Applications
- Car audio amplifier
- Portable audio amplifier.
- Home hi fi audio system
- School Mic announce amplifier.
- Public Sound box.
- DIY Audio amplifier.
Last Word
Building the LA4440 ic based audio amplifier is a very interesting and rewarding process. The IC circuit is designed with a minimal number of external components. Can anyone build this amplifier at home. Lets build your own and share comments here.
