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9/18/2014

Tone control and surround digitally controlled audio processor with AGC

Circuit Diagram:

Tone control and surround digitally controlled audio processor with AGC
Datasheet for TDA7443: Download

9/17/2014

RF FRONT-END FOR DIGITAL RADIO

Circuit Diagram:
CIRCUIT DIAGRAM FOR RF FRONT-END FOR DIGITAL RADIO
Datasheet for STA001: Download

Dual audioprocessor with compander and subwoofer output

Circuit Diagram:
Circuit diagram for dual audioprocessor with compander and subwoofer output
Datasheet for TDA7462D: Download

AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

General Description:
The TDA 7511 is a high performance tuner circuit for AM/FM car radio. It contains mixers, IF amplifiers, demodulators for AM and FM, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip.
Circuit Diagram:
CIRCUIT DIAGRAM AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

 Datasheet for TDA7511: Download


Low noise dual operational amplifier

Features:
  • Low voltage noise: 4.5 nV/√Hz
  • High gain bandwidth product: 15 MHz
  • High slew rate: 7 V/µs
  • Low distortion: 0.002%
  • Excellent frequency stability
  • ESD protection 2 kV

General Description:

The LM833 is a monolithic dual operational amplifier particularly well-suited to audio applications. It offers low voltage noise (4.5 nV/√Hz) and high  frequency performances (15 MHz gain bandwidth  product, 7 V/µs slew rate). In addition, the LM833 has a very low distortion  (0.002%) and excellent phase/gain margins.

Circuit Diagram:
Low noise dual operational amplifier
Datasheet for LM833: Download

Digitally controlled audio processor with surround sound matrix and voice canceller

General Description:
The TDA7430/TDA7431 is volume tone (bass middle and treble) balance (Left/Right) processors voice canceller for quality audio applications in car radio and Hi-Fi systems. The reproduce surround sound by using programmable phase shifters and a signal matrix. Control of all functions is accomplished by serial bus. The AC signal setting is botained by resisstor networks and switches combined with operational amplifiers. 
Circuit Diagram:
Circuit diagram for Digitally controlled audio processor with surround sound matrix and voice canceller

Datasheet for TDA7430: Download

10 + 10W stereo amplifier with mute and st-by

Circuit Diagram:
10 + 10W stereo amplifier with mute and st-by

 Datasheet for TDA7269: Download
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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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