Hi-fi stereo audio processor

The TDA8426 is a stereo sound circuit with a loudspeaker channel facility, digital controlled via the I2C-bus, for application in hi-fi audio and television sound. Reduced spatial antiphase crosstalk (30%) makes the device especially suitable for application in projection television receivers.

Data sheet for TDA8426: Download

5W+5W AMPLIFIER

The UTC TDA8496 is a stereo 5+5W class AB power  amplifier with mute and dc volume control,assembled in the  HZIP-15 package. It is designed for high quality sound, LCD TV or LCD Monitor applications. 

Datasheet for TDA8496: Download

2 W BTL audio amplifier

The TDA8543(T) is a one channel audio power amplifier for an output power of 2 W with an 8 Ω load at a 7.5 V supply. The circuit contains a BTL amplifier with a complementary PNP-NPN output stage and standby/mute logic. The TDA8543T comes in a 16 pin SO package and the TDA8543 in a 16 pin DIP package.

Datasheet for TDA8543: Download

2 x 1.4 W BTL audio amplifiers TDA8552T, TDA8552TS

The TDA8552T is a two channel audio power amplifier that provides an output power of 2 × 1.4 W into an 8 Ω load using a 5 V power supply. The circuit contains two BTL power amplifiers, two digital volume controls and standby/mute logic. Volume and balance of the amplifiers are controlled using two digital input pins which can be driven by simple push-buttons or by a microcontroller.

2 x 1.4 W BTL audio amplifiers TDA8552T, TDA8552TS

Datasheet: Download

Class-H high-output voltage level line driver

General Description:

The TDA8576T is a two channel class-H high-output voltage line driver for use in car audio applications. The line driver operates as a non-inverting amplifier with a gain of 6 dB and a single-ended output. Due to the class-H voltage lifting principle the voltage swing over the load is more than the supply voltage. With a supply voltage of 9 V the output voltage swing over the load will be more than 14 V (peak-to-peak). The TDA8576T is available in a SO16 package. Line drivers are necessary in car audio systems in which the power amplifiers are driven by long cables. The signal-to-noise ratio of these car audio systems is improved by using the TDA8576T class-H high-output level line driver. The high-output level of TDA8576T enables a reduction of the gain of the power amplifier resulting in an improvement of the power amplifier performance.

Circuit Diagram:

Class-H high-output voltage level line driver

Datasheet for TDA8576: Download

2 x 20 W BTL amplifiers

General Description:

The IC incorporates the following functions:

4 × 6 W SE amplifies without SE capacitor, because of the availability of 2 half supply voltage power buffers. 2. 2 × 20 W BTL amplifiers. Automatic switching between 2 and 4 speaker operation. The mode of operation is determined during start-up.

This amplifier is protected for all general short-circuit conditions to battery or ground, overvoltage, 45 V load dump and short-circuits on the speaker outputs. The IC is contained in a 20-pin power HSOP package, but is also available in a 17-pin SIL power package. When packaged in the 20-pin HSOP package additional functions are available:

DDD level selection between 2 and 10% Overrule pin for changing mode of operation (from SE to BTL or from BTL to SE).

Circuit Diagram:

2 x 20 W BTL amplifiers

Datasheet for TDA8586: Download

2 x 80 W class-D audio amplifier

General Description:     

The TDA8927 is the switching power stage of a two-chip set for a high efficiency class-D audio power amplifier system. The system is split into two chips: 

• TDA8927J/ST/TH; a digital power stage in a DBS17P, RDBS17P or HSOP24 power package

• TDA8929T; the analog controller chip in a SO24 package.

     With this chip set a compact 2 × 80 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from ±15 up to ±30 V and consumes a very low quiescent current.

Circuit Diagram:

Circuit diagram for 2 x 80 W class-D audio amplifier