The high-fidelity power amplifier IC TDA1521A is used to make the power amplifier circuit, which has the characteristics of few peripheral components, no need to debug, and it will ring when installed. Suitable for self-made, used for power connection of Walkman, or used to transform low-end computer active speakers. The TDA1521A adopts a nine-pin single-in-line plastic package, which has the characteristics of high output power, small gain difference between the two channels, no impact sound of the switch speaker and reliable overheating, overload and short circuit protection. The TDA1521A can be powered by both positive and negative power supplies, or a single power supply. The circuit principle is shown in Figure 1 (a) and (b. When dual power supplies are used, two audio output capacitors can be omitted, and the sound quality of high and low bass is better. When single power supply is used The power supply filter capacitor should be as close as possible to the power supply end of the integrated circuit to avoid self-excitation in the circuit. The manufacturing block must be equipped with a heat sink to power on the sound test, otherwise it is easy to damage the integrated block. The heat sink should not be less than 200 × 100 × 2mm3. |
Follow WeChat
Interesting and informative information and technical dry goods
Download Audiophile APP
Create your own personal electronic circle
Follow the audiophile class
Lock the latest course activities and technical live broadcast
comment
Publish
related suggestion
[Photo] TDA1013 peripheral circuit diagram
Posted at 2006-04-17 21:23 • 502 views
[Photo] TDA2616 peripheral circuit diagram
Posted at 2006-04-17 21:23 • 802 views
[Photo] TDA2822
Posted at 2006-04-17 21:23 • 827 views
[Photo] TDA2040
Posted at 2006-04-17 21:23 • 715 views
[Photo] TDA2009
Posted at 2006-04-17 21:23 • 1092 views
[Photo] TD-5 ultrasonic micro atomizing humidifier
Posted at 2006-04-16 17:59 • 426 views
[Photo] TDA2007 power amplifier circuit
Published on 2006-04-15 13:10 • 1346 times read
[Photo] TDA2009 power amplifier circuit
TDA2009 is a relatively common and price
Posted at 2006-04-15 13:09 • 1852 times read
[Photo] TDA7057AQ power amplifier circuit diagram
!
Published on 2006-04-15 13:09 • 6679 times read
[Photo] TDA1521 audio circuit
Posted at 2006-04-14 23:34 • 495 views
'+ data.username +'