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50 Watt Mono Amplifier TDA1514A


1. 2×20KΩ-22KΩ resistor 1/4W.
2. 1×680Ω resistor 1/4W.
3. 1×47Ω resistor 1/4W.
4. 1×82Ω-100Ω resistor 1/4W.
5. 1×470KΩ resistor 1/4W.
6. 1×1KΩ resistor 1/4W.
7. 1×2.2Ω-3.3Ω resistor 2W.
8. 1×0.022uF(223) capacitor 50V.
9. 1×221pF(221) capacitor 50V.
10. 4×0.1uF(104) capacitor 50V.
11. 1×LED 3 mm.
12. 1×3.3uF capacitor 25V.
13. 1×1uF capacitor 25V.
14. 1×220uF capacitor 25V.
15. 1×IC TDA1514A.
16. 1×2 pin connecter base 2.54 mm.
17. 1×Bridge Rectifier GBU808.
18. 1×3 pin screw terminal.
19. 1×2 pin screw terminal.
20. 1×47K-100K single turn potentiometer.
21. 1×4700uF capacitor 35V.

License:- ©Technical Mriganka. You can't use this PCB Layout and Gerber File for commercial purpose. You can use this PCB layout and Gerber file only for Educational and DIY projects.

PCB Layout & Schematic:-

Lets Build This Amplifier

Hello Friends, in this post I make a 50 Watt mono amplifier using TDA1514A IC. This is a class AB amplifier. Which can deliver up to 50 Watt RMS output at 8Ω ±27V, Test frequency 1khz. This IC is especially designed for High-End Stereo TVs, for it's low noise distortion. I designed this PCB based on this IC, for make this amplifier you can download the required files For designing my PCB, I used EasyEda online software. Then I export the Gerber file (which you can download). And then I go to for manufacturing my PCB. PCBWay are the largest PCB manufacturer in China. They offer Standard PCB, Advanced PCB, Rigid-Flex PCB, SMD-Stencil and PCB Assembly Service. Here you get, 100x100mm 2 Layer PCB only at $5, And processing time within 24 hour. And they distribute, worldwide. The more you order, the less price you have to pay.

You just need to upload the Gerber File, and select the quantity, color, silkscreen, thickness etc. Then select your country, and shipping method and then Pay. PCBWay will deliver your PCB within 7-10 days.

After one week I have received my PCB. You can see the PCB quality, it's awesome. I have ordered Blue PCB. But you can choose your PCB color. PCBWay provide total 9 color solder mask - Green, Blue, Red, Purple, Black, White, Yellow, Matte Black and Matte Green. On PCBWay you can get 100x100mm 2 Layer PCB only at $5. Maximum size PCB you can get 500x1100mm. And maximum Layer is up to 14 Layers. And If you order PCB first time at PCBWay, then you get a $5 discount coupon. So upload your Gerber today and get best quality PCB.

Testing Method After Complete This Amplifier

Series light test:- After complete this board don't forget to series light test. When you will on this amplifier via series light, it glow for some time (1 - 2 sec). Then series light will turned off fully. If the series light will fully turned off, then check the voltages.

Check Voltages:- Check Speaker Output and Audio Input voltage. Here you get no voltages 0.00V. If you get same voltages, then connect preamplifier to input and connect speaker to output.

Power Supply:- For get best performance of this amplifier, you use 18-0-18V 4A-5A Transformer.

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