TDA2050 Amplifier Schematic diagram:

TDA2050 Amplifier PCB Design:

About TDA2050:
The TDA 2050 is a monolithic integrated circuit in Pentawatt package, intended for use as an audio class AB audio amplifier. Thanks to its high power capability the TDA2050 is able to provide up to 35W true rms power into 4 ohm load @ THD =10%, VS =? ?18V, f = 1KHz and up to 32W into 8ohm load @ THD = 10%, VS = ?22V, f = 1KHz. Moreover, the TDA 2050 delivers typically 50W music power into 4 ohm load over 1 sec at VS=22.5V, f = 1KHz.

The high power and very low harmonic and crossover distortion (THD = 0.05% typ, @ VS = ?22V, PO = 0.1 to 15W, RL=8ohm, f = 100Hz to 15KHz) make the device most suitable for both HiFi and high class TV sets.

TDA2050 Features:

• High output power
• High operating supply voltage
• Single or split supply operations
• Very low distorsion
• Short circuit protection (out to GND)
• Thermal shutdown

Note: Mount a heatsink on the power IC to avoid overheating on its and keep the TDA2050 deliver good audio performance.

Download TDA2050 datasheet for further details and complete information about IC TDA2050.
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The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4 ohm load and 38W into 8 ohm with 0.1% THD+N from 20Hz-20kHz.

LM3886 Amplifier Specifications:

Maximum Output Power   : 68W RMS - 108W Peak
THD                    : %0.03 at 60W
SNR                    : 110dB at 60 W - 92.5dB at 1W
PSRR                   : 120dB
Protection Circuitries : DC /AC Short circuit protection and thermal protection
Output Class           : Conjugate AB-A

The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (?Ke) (SPiKe?) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are completely safeguarded at the output against overvoltage, undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks.

The LM3886 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0uV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%.

Download the LM3886 datasheet document:
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