PCM2707 -> TAS3004 - I2S doubt - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 10th June 2007, 12:12 PM   #1
zumba is offline zumba  United Kingdom
diyAudio Member
Join Date: Jun 2007
Question PCM2707 -> TAS3004 - I2S doubt


I'm new to this forum, and I've searched for a similar threads but I did not find any answer to my question.

My project will have a PCM2707 as interface from USB and a TAS3004 for audio signal processing and a AD1954 as DAC.
The TAS3004 will also be used to switch to other input devices.

I've checked the datasheets and between them all the only component that does not accept to be a slave device is the PCM2707, wich means that this device will have to be the Master for the whole board, and this brings me to ask:

Does anyone know if the PCM2707 pin BCK (aka MCLK) stays always active, even if there is no streaming from the PC or the USB is not connected?

I would really be a pain to have to use an extra clock when the USB is detached or not active.

Can anyone please check with a scope on there own circuit if this pin stays active all the time?

Thank you that would be very appreciated

  Reply With Quote
Old 10th June 2007, 12:35 PM   #2
zumba is offline zumba  United Kingdom
diyAudio Member
Join Date: Jun 2007
I've just noticed a mistake in my thread, I'm refering incorrectly to BCK pin, I instead mean pin SYSCK.
  Reply With Quote
Old 10th June 2007, 02:11 PM   #3
diyAudio Member
analog_sa's Avatar
Join Date: Aug 2002
Location: Cascais
MCLK runs at all times
  Reply With Quote
Old 10th June 2007, 08:33 PM   #4
zumba is offline zumba  United Kingdom
diyAudio Member
Join Date: Jun 2007
Thank you, that saves me quite a bit of sleepless nights!

  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
a doubt about a circuit simonwai999 Parts 29 15th April 2011 08:53 AM
Parafeed doubt croccodillo Tubes / Valves 6 9th August 2006 08:08 AM
doubt swaroopvg Power Supplies 0 1st July 2006 05:27 PM
EAS/ELF doubt rs1026 Chip Amps 8 9th November 2004 06:45 PM

New To Site? Need Help?

All times are GMT. The time now is 10:42 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2