7/09/2014

TDA1308 Class-AB stereo headphone driver

General description:

The TDA1308 is an integrated class-AB stereo headphone driver contained in an SO8 or  a TSSOP8 plastic package. The device is fabricated in a 1 μm Complementary Metal  Oxide Semiconductor (CMOS) process and has been primarily developed for portable digital audio applications.

Features and benefits:

  • Wide temperature range
  • No switch ON/OFF clicks
  • Excellent power supply ripple rejection
  • Low power consumption
  • Short-circuit resistant
  • High performance
  • High signal-to-noise ratio
  • High slew rate
  • Low distortion
  • Large output voltage swing
Circuit diagram:
TDA1308 Class-AB stereo headphone driver circuit diagram

Datasheet for TDA1308: Download

7/08/2014

AF Power Amplifier IC with Thermal Shutdown

General Description:


Af powerr amplifier designed for a wide range of supply voltages to enable versatile application in entertainment electronics. The amplifier operates in tje push-pull B mode and is available in tje sip 9 package. The integrated shutdown protects the IC from overtheating.

Circuit diagram:

AF Power Amplifier IC with Thermal Shutdown

12 W car radio power amplifier

General Description

The TDA1020 is a monolithic integrated 12 W audio amplifier in a 9-lead single in-line (SIL) plastic package. The device is primarily developed as a car radio amplifier. At a supply voltage of VP= 14,4 V, an output power of 7 W can be delivered into a 4 Ω load and 12 W into 2 Ω. To avoid interferences and car ignition signals coming from the supply lines into the IC, frequency limiting is used beyond the audio spectrum in the preamplifier and the power amplifier. The maximum supply voltage of 18 V makes the IC also suitable for mains-fed radio receivers, tape recorders or record players. However, if the supply voltage is increased above 18 V (< 45 V), the device will not be damaged (load dump protected). Also a short-circuiting of the output to ground (a.c.) will not destroy the device. Thermal protection is built-in. As a special feature, the circuit has a low stand-by current possibility.

Circuit Diagram:
12 W car radio power amplifier

Datasheet for TDA1020: Download


7/07/2014

Recording/playback and 2 W audio power amplifier TDA1016

GENERAL DESCRIPTION:

The TDA1016 is a monolithic integrated audio power amplifier, preamplifier and A.L.C. circuit designed for applications in radio-recorders and recorders. The wide supply voltage range makes this circuit very suitable for d.c. and a.c. apparatus. The circuit incorporates the following features:

Features:

  • Power amplifier/monitor amplifier
  • Preamplifier/record and playback amplifier
  • Automatic Level Control (A.L.C.) circuit
  • Voltage stabilizer
  • Short-circuit (up to 12 V a.c.) and thermal protection

Circuit diagram:
Recording/playback and 2 W audio power amplifier TDA1016

7/03/2014

Triple amplifier circuit TDA7497

Amplifier Description


The TDA7497 is a triple 10+10+10W/15W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7497 include mute functions, independently controller for main and center channels.

Circuit Diagram
TDA7497 circuit diagram
Datasheet for TDA7497: Download

7/02/2014

How To Build A Subwoofer Box





How to Design a Subwoofer Box

In this video I teach you how to design a subwoofer enclosure box using some of the leading design software. I also show you what math equations to use and how to design using a variable dimension for one of the sides of your sub enclosure. This can be used for speakers as well. Then you just need to build, grab an amplifier and your flexing away!

Youtube channel: CarAudioFabrication.

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200W Audio Amplifier Circuit

Circuit description: Connecting two TDA2030 thru cheap power transistors we can create a amplifier wich can deliver a higher power. Wi...

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