Home · Search · Register  

Home » Main » Source and Line Level » Digital Photo Options

Previous image   Slide Show   Next image

The DC Reference modul
Click on image to view larger image

Previous image   Slide Show   Next image


Photo Details
dvb projekt

diyAudio Member

Registered: February 2009
Location: Willich, Germany
Posts: 1,389
users gallery

Because the Grounded-Gate Buffer is connected between the DAC output and the passive I/V resistor,
normally the I/V resistor is connected between the DAC output and GND,
you must get rid off the approx. 4V DC on each I/V resistor.
Therefore we must get a new reference GND for each channel.

The circuit is connected to the ref.+5V at the output of the buffer and GND,
with a decoupling cap for each channel.
By trimming each voltage so it exactly matches DC voltage on the I/V resistor,
the DC voltage between I/V resistor and reference becomes zero.
In other words, the DC component is removed without using a coupling cap.
Date: Mon August 22, 2011 Views: 10036
Filesize: 34.1kb, 251.9kb Dimensions: 800 x 521
Additional Info
Quick Rate: Poor Excellent
Keywords: The DC Reference modul
Additional Categories: "Reference" TDA1541A DAC project with I2S-BUS architecture
Linked Thumbnail:
Linked Medium:
Medium Image:

Photo Sharing Gallery by PhotoPost
Copyright © 2009 All Enthusiast, Inc.

All times are GMT. The time now is 09:35 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd. ()
Copyright 1999-2015 diyAudio