TDA1521 Or TDA2616 Dual Channel OTL Power Amplifier

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TDA1521 or TDA2616 Dual channel Power Amplifier Dual-channel HIFI Power Amplifier This is a pure final stage HIFI power amplifier based on TDA1521/TDA2616, which can be interchangeable, only with different pin connections for pin 2. TDA2616, compared to the well-known TDA1521, has added output short-circuit protection and supports 4-ohm speakers.

It is recommended to pair it with high-quality speakers of 3–4 inches, suitable for desktop or bookshelf speakers, with excellent results! To meet different needs, we specially provide two types of PCB, circular board and rectangular board, and optimize the grounding method. The listening effect is exceptional! Special reminder: when using the TDA2616 chip, pin 2 should be left floating; when using the TDA1521, pin 2 should be connected to pin 3! You can adjust the connection between pins 2 and 3 according to your chip and then sample the PCB.

Schematic TDA1521 or TDA2616 Dual channel OTL Power Amplifier

Schematic Tda1521 Tda2616 Dual Channel Otl Power Amplifier — Schematic

About IC TDa1521 TDa1521q

The IC TDa1521 is a versatile and high-performance audio amplifier integrated circuit. It is designed to deliver exceptional sound quality and power output in a compact and efficient package. With a built-in preamplifier and power amplifier, it is capable of driving multiple speakers with a wide frequency response range. The TDa1521 features various protection mechanisms, including thermal shutdown and short-circuit protection, ensuring safe and reliable operation. Its low distortion and high signal-to-noise ratio make it ideal for audio applications such as home theater systems, car audio systems, and portable speakers. Overall, the IC TDa1521 offers a cost-effective and reliable solution for amplifying audio signals with exceptional clarity and power.

About ic TDA2616 TDA2616q

The IC TDA2616 is an audio power amplifier integrated circuit that is commonly used in audio applications. It is designed to deliver high-quality sound with minimal distortion and noise. The TDA2616 is a dual channel amplifier, meaning it can provide amplification for two separate audio channels, making it suitable for stereo applications. This IC has a wide operating voltage range, allowing it to be powered by various power sources. It also features a built-in thermal shutdown protection mechanism to prevent overheating and damage to the device. With its compact size and versatile capabilities, the TDA2616 is a popular choice among audio enthusiasts and professionals for amplifying sound signals in various audio systems.

Tda1521 Tda2616 Dual Channel Otl Power Amplifier

BOM TDA1521 or TDA2616 Dual channel OTL Power Amplifier

Name	Designator	Footprint	Quantity
Resistors
10K	PR_LED1	Brown, black, orange, gold	1
8.2R 1/2W	R1,R2	Gray, red, gold, gold	2
Capacitors
4700uF/25V	C1,C2	Electrolytic capacitor	2
100n	C4,C5	Ceramic capacitor	2
0.47uf	C6,C8	Film capacitor	2
100uF/25v	C7	Electrolytic capacitor	1
220n	C11,C12	Film capacitor	2
680uF/25V	C13,C14	Electrolytic capacitor	2
Semiconductors
Power LED	LED1	LED 3 mm red	1
TDA1521WS	U2	TDA1521 or TDA1521Q or TDA2616 or TDA2616Q — hi-fi audio power amplifier	1
GBJ2510	D1	Bridge rectifier	1
Miscellaneous
Rout	P1	Connector terminal block 5.08 mm 2 pin	1
Lout	P2	Connector terminal block 5.08 mm 2 pin	1
Audio in	H1	2.54 mm connector 3 pin	1
Power in	P3	Connector terminal block 5.08 mm 2 pin	1