Archive for April, 2008

741 datasheet specifications

741 is a general purpose single operational amplifier. The UA741 is a high performance monolithic operational amplifier constructed on a single silicon chip.


Stereo noise blanker, suppressor, limiter

This stereo noise blanker or suppressor attenuate the noise with 45dB when the music signal is low or null, is just a noise limiter. The noise blanker sensitivity can be adjusted with P1: the highest it gets the faster the noise suppression occurs. It has only one IC - 741 and 3 cheap transistors.
The maximum [...]


TDA1514 Datasheet

The TDA1514A integrated circuit is a hi-fi power amplifier for use as a building block in radio, tv and other audio applications. The TDA 1514 circuit is totally protected, also has a mute function that can be arranged for a period after power-on with a delay time fixed by external components. The device is intended [...]