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   Filename  Description Size
TDA7309 Digital controlled stereo audio processor with loudness. Includes features such as 3 independent stereo audio multiplexer switches, digital volume control in 1dB steps, loudness function, soft mute function, and record output function. All functions are programmable via serial I2C bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and Low DC stepping are obtained. 231K
TDA7310 Serial bus controlled audio processor. Features 4 Stereo input multiplexer switches with one differential stereo input for remote sources, selectable input gain for adaptation to different sources, volume control in 1.25 dB steps, loudness function, treble and bass control, input and output for external equalizer or noise reduction system, four speaker attenuators with independent mute function. All functions are programmable via serial bus. 3129K

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]






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