Table of Contents
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
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.
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 |
Download files, links, and notes
Download PCB in Gerber, PDF, PNG and SVG
- PDF datasheet IC TDA1521 TDA1521Q — 2 × 12 W hi-fi audio power amplifier
- PDF datasheet IC TDA2626 TDA2626Q — 2 × 12 W hi-fi audio power amplifier
- PDF datasheet bridge rectifier GBJ2510 — 5A glass passivated bridge rectifier
Source:https://oshwhub.com/cqlcp/tda2616_-shuang-sheng-dao-hifi-gong-shuai-fang-tai-qi-20220509_copy_copy
