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Showing posts with the label TDA1514A

TDA1514A Audio Amplifier 50W

TDA1514A general description:

Here the very simple but powerful amplifier kit which built based on TDA1514A amplifier chip. The circuit is for single channel only, you should build two similar circuit for stereo application. A heatsink is a must to be attached on the IC TDA1514A. This circuit can be used as well as stereoamplifiers Bass in a 5.1 system. TDA1514A Audio Amplifier 50W
TDA1514A features: Battery operationMinimum external partsWide supply voltage range: 4V–12V or 5V–18VLow quiescent current drain: 4mAVoltage gains from 20 to 200Ground referenced inputSelf-centering output quiescent voltageLow distortion: 0.2% (AV = 20, VS = 6V, RL = 8Ω, PO =125mW, f = 1kHz)Available in 8 pin MSOP packageTDA1514A circuit:
TDA1514A layout: Printed Circuit Layout and placement for mono 40 W amplifier:

Printed Circuit Layout and placement for sterio 2 x 40 W amplifier.

50 W high performance hi-fi amplifier


The TDA1514A integrated circuit is a hi-fi power amplifier for use as a building block in radio, tv and other audio applications. The high performance of the IC meets the requirements of digital sources (e.g. Compact Disc equipment). The circuit is totally protected, the two output transistors both having thermal and SOAR protection (see Fig.3). The circuit also has a mute function that can be arranged for a period after power-on with a delay time fixed by external components. The device is intended for symmetrical power supplies but an asymmetrical supply may also be used.
Features High output powerLow harmonic distortionLow intermodulation distortionLow offset voltageGood ripple rejectionMute/stand-by facilitiesThermal protectionProtected against electrostatic dischargeNo switch-on or switch-off clicksVery low thermal resistanceSafe Operating Area (SOAR) protection.Circuit Diagram for 50 W high performance hi-fi amplifier: