Abbiamo aggiornato la nostra informativa sulla privacy.
Se vuoi saperne di più visualizza il dettaglio della nostra informativa sulla privacy.
Questo sito utilizza i cookies di profilazione.
Proseguendo la navigazione acconsenti all'uso di tutti i cookies.
Se vuoi saperne di più visualizza il dettaglio della nostra Cookies Policy.
Add an ear to your project with this well-designed electret microphone amplifier with AGC. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX9814, a specialty chip that is designed for amplifying electret microphones in situations where the loudness of the audio isn#39;t predictable.
This fancy microphone amplifier module is a step above the rest, with built in automatic gain control. The AGC in the amplifier means that nearby #39;loud#39; sounds will be quieted so they don#39;t overwhelm amp; #39;clip#39; the amplifier, and even quiet, far-away sounds will be amplified. This amplifier is great for when you want to record or detect audio in a setting where levels change and you don#39;t want to have to tweak the amplifier gain all the time.
The chip at the heart of this amp is the MAX9814, and has a few options you can configure with the breakout. The default #39;max gain#39; is 60dB, but can be set to 40dB or 50dB by jumpering the Gain pin to VCC or ground. You can also change the Attack/Release ratio, from the default 1:4000 to 1:2000 or 1:500. The ouput from the amp is about 2Vpp max on a 1.25V DC bias, so it can be easily used with any Analog/Digital converter that is up to 3.3V input. If you want to pipe it into a Line Input, just use a 1-100uF blocking capacitor in series (100uF sounds best).
Le informazioni riportate su robot-domestici.it
possono essere soggette a modifiche senza preavviso, alcune immagini sono a titolo indicativo.
Tutti i marchi citati sono di proprietà delle rispettive case e produttori.
Informazioni aziendali
ROBOT DOMESTICI SRL - Via Cornelio Labeone, 70 - 00174 Roma (RM)
Partita IVA IT15791431008 - REA di Roma n. RM 1614298
CODICE FATTURAZIONE ELETTRONICA: KRRH6B9
Tel. (+39) 06 76971136 | e-mail: info@robot-domestici.it