Maxim AN1931: USB-Powered High Precision Phono Preamp - diyAudio
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Old 17th December 2006, 08:52 AM   #1
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Lightbulb Maxim AN1931: USB-Powered High Precision Phono Preamp

.
Hello.
lineup here again

My attached circuit diagram shows a nice little new idea from Maxim www.maxim-ic.com
High quality RIAA Phono Pre Amplifier
using your computer USB port for power supply, +5 Volt.


This design, as often when comes to MAXIM IC devices,
has very small mini components, chips.
Mainly intended for SMD use.
IC1.
Power supply regulator MAX8877 is one 5-pin SOT23.
Low-Noise, Low-Dropout, 150mA Linear Regulator
IC2.
Low-Distortion OP Amp MAX4478 is one 6-pin SOT23.
Low-Noise, Low-Distortion, Wide-Band, Rail-to-Rail Op Amp

See my attachment for basic circuit idea.

And visit the webpage for more info.

Basic information in this webpage:
USB-Powered High Precision Hi-Fi Phono Preamp
It is described in Maxim application note AN1931.
Download:
http://pdfserv.maxim-ic.com/en/an/AN1931.pdf


Regards
lineup
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