Table of Contents
TDA7052 amplifier circuit TDA7052A BTL. The TDA7052A is a mono output amplifier designed for battery-fed portable audio applications, such as tape recorders and radios.
The gain is fixed internally at 40 dB. A large number of tape recorders and radios are still designed for mono sound, plus a space-saving trend by reduction of the number of battery cells. This means a decrease in supply voltage, which results in a reduction of output power.
To compensate for this reduction, the TDA7052 uses the Bridge-Tied-Load principle (BTL) which can deliver an output power of 1,2 W (THD = 10%) into an 8 Ω load with a power supply of 6 V. The load can be short-circuited at each signal excursion. The TDA7052 is a mono output amplifier in an 8-lead dual-in-line (DIL) plastic package. The device is designed for battery-fed portable audio applications.
The TDA7052A TDA7052AT are mono BTL output amplifiers with DC volume control. They are designed for use in TV and monitors, but also suitable for battery powered portable recorders and radios.
Missing Current Limiter (MCL)
An MCL protection circuit is built-in. The MCL circuit is activated when the difference in current between the output terminal of each amplifier exceeds 100 mA (typical 300 mA). This level of 100 mA allows for headphone applications (single-ended).
Features:
- No external components
- No switch-on or switch-off clicks
- Good overall stability
- Low-power consumption
- No external heatsink required
- Short-circuit proof
- DC volume control
- Few external components
- Mute mode
- Thermal protection
- Short-circuit proof
- No switch-on and off clicks
- Good overall stability
- Low-power consumption
- Low HF radiation
- ESD protected on all pins
This is Minimal and mini Power Amplifier BTL 1W with TDA7052. If you are seeking, the circuit amplifies small-sized. I beg for to advise this circuit because tiny economize with the equipment is a little. And still can use force against large-sized get comfortably (I have tried already) besides it still is low voltage amplifier circuit that volts power supply expansive be about 1.5V arrive at 15V as well. It is tiny size and can adjust volume by VR1. Regard as IC TDA7052 to be worthwhile very much. For you, who want to try to build this circuit.
Include PCB board.
Circuit diagram Schematic TDA7052 amplifier circuit TDA7052A BTL
PCB for assembly of the TDA7052 amplifier circuit TDA7052A BTL
Part list
| Component | Value |
| Capacitors | |
| C1 | 10µF/16v Capacitor electrolytic |
| C2 | 100nF – Capacitor ceramic |
| C3 | 100µF/16V- Capacitor electrolytic |
| Semiconductor | |
| IC1 | TDA7052 |
| Connectors | |
| IN | Terminal block connector 2 screws – Audio input |
| OUT | Terminal block connector 2 screws – Audio output |
| VCC | Terminal block connector 2 screws – Power supply |
| Miscellaneous | |
| R1 | 1k – 1/4W 5% Resistor – Brown, black, red, gold |
| P1 | 10k – Potentiometer to adjust volume |
| Printed circuit board, Weld, wires, power supply or battery – 3 to 12 volts, etc. | |
The TDA7052A, TDA7052AT and TDA7052BT ICs are incompatible with this project.
Download board + schematic + Datasheet in PDF, PNG, PS, Gerber + library for Eagle tda7052.lbr
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Download Datasheet in PDF for TDA7052
Why not use the built-in volume control on pin4?
Hello Mac
Pin 4 no connection
Good job. My best wishes for u 1st. Could u please upload some high power mono amplifier schematics and PCB layouts using TDA 7293 with more than 150w rms
Hello Tony
Do you have a picture for the
layout for the cupper side of the printed cuiciut board
I want to make 2 amplifier 1 Watt
C3 should be between the pin 2 and potentiometer. And not after the potentiometer, then connected to ground.
I tried it my self…