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Search results: 186   Output: 1-10
  1. Guus Colman EDN In many applications, the frequency-conversion steps comprise a buffer, preferably with some extra voltage gain; a mixer; and some filtering. Instead of including an amplifier in front of the mixer, you can easily integrate the ...
    21-12-2016
  2. Troy Murphy EDN Thanks to its property of applying an equal amount of delay to all frequencies below its cutoff frequency, the Bessel linear-phase filter sees service in audio applications in which it's necessary to remove out-of-band noise without ...
    07-07-2016
  3. Susanne Nell EDN The circuit in Figure 1 can help if you must transfer dc power and audio over a pair of copper wires. One application for such a circuit is a low-cost door-opening system with speech input. The circuit uses only one IC, the ...
    04-04-2016
  4. Marko Kannisto, Maxim Integrated Application Note 5147 Part 1. There are thermal issues to consider. With a 12 V supply voltage and a 4 Ω load, the amplifier's efficiency with 20 WRMS output power is approximately 85%. We can calculate how ...
    Circuits » Audio · Wireless » Maxim » MAX98400A
    11-02-2016
  5. Marko Kannisto, Maxim Integrated Application Note 5147 Pretend that the weather is warm and it is a nice time to be outdoors chatting with friends. You want some background music, but where will it come from? When people want portable music, they ...
    Circuits » Audio · Wireless » Maxim » MAX98400A
    03-02-2016
  6. Lyle Russell Williams EDN A direct-conversion radio receiver required an audio gain of 450 from a pentode vacuum tube. A pentode has a high transconductance that is, the ratio of the change in plate current to the change of the control grid voltage ...
    Circuits » Audio » 6AU6
    10-06-2015
  7. Petre Petrov EDN The popular 555 timer ( LMC555 , SE555 , NE555 , HA555 ) can be used as a PWM/Class-D amplifier for musical instruments or other applications. It can use a wide supply range of 4.5-16 V and produce 200 mA of drive. The audio is fed ...
    Circuits » Audio » LMC555, SE555, NE555, HA555
    04-06-2015
  8. Petre Petrov Electronic Design This all-analog circuit provides three key waveforms simultaneously and at the same frequency within the audio band. It is useful for evaluating audio systems, transformers, cables, and other electrical installations. ...
    Circuits » Audio · Oscillators » LM386
    02-05-2015
  9. Ajoy Raman Electronic Design A common PC sound card can be used as a sine/square/triangle function generator, but the output suffers from limited rail-to-rail swing, plus its zero-centered has no DC offset. This circuit overcomes these constraints ...
    11-02-2015
  10. The objective of this project is to build an Arduino voice shield to empower thousands of voice related applications! All this mostly thanks to an integrated ISD1790PY chip (Figure 1). Figure 1. Voice Shield for Arduino This particular voice/TTS ...
    24-03-2013
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