Sanyo LC89055W Digital audio Receiver - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

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
Reply
 
Thread Tools Search this Thread
Old 9th July 2004, 12:57 PM   #1
Cesium is offline Cesium  France
diyAudio Member
 
Join Date: Jul 2004
Location: France
Default Sanyo LC89055W Digital audio Receiver

Hello everyone, (sorry for my English)

Well, this is my first post in the forum, but I think it wouldn't be the last .

I actually study the possibility to upgrade a Pioneer digital processor, in fact upgrade the clock. It uses a Digital audio receiver Sanyo LC89055W to lock a PLL from the optical signal and then provides a 384.fs clock for digital filters.

Do someone have datasheet on this IC?

I'm also looking for datasheet or information on the IC PD7010A1 (I think manufacturer is Pioneer) . As it works in parallel with two SM5847AF digital filter, it must also be one.

I've forgotten to tell you, the digital processor is a 2x31 band equalizer and digital filter on 4 ways.

Thank you very much to help me in my quest.

Best regards

Cs
  Reply With Quote
Old 12th July 2004, 03:57 PM   #2
Cesium is offline Cesium  France
diyAudio Member
 
Join Date: Jul 2004
Location: France
So anyone to help me .
Actually, it seems the 2 SM5847 worked with a 384.fs clock reference and same for the PD7010. This clock is coming out the LC89055, the digital receiver. As the DACs PCM1704 worked with a 192.fs BCK, I'm going to have to divide clock; that's not too difficult, but I also would have to keep phase beetween the divided clock and the out of SM5847s (I've got my idea).

It would be more simple for me to program by pin the PD7010 to work with a 192.fs clock as I know it's possible for the SM5847s.
So, if someone knows this IC, it would be great.

Cesium
  Reply With Quote
Old 12th July 2004, 08:47 PM   #3
diyAudio Member
 
jobstens's Avatar
 
Join Date: Jun 2004
Location: near Hannover
Default Re: Sanyo LC89055W Digital audio Receiver

Quote:
Originally posted by Cesium
I'm also looking for datasheet or information on the IC PD7010A1 (I think manufacturer is Pioneer) . As it works in parallel with two SM5847AF digital filter, it must also be one.
I think it's a digital audio processor.

Quote:
Originally posted by Cesium
I'm going to have to divide clock; that's not too difficult, but I also would have to keep phase beetween the divided clock and the out of SM5847s
The Bitclock is the Bitclock. And if you divide it, there are two bits at one clockcycle. Don't confuse it with MCLK ! The PCM1704 accepts BCLK up to 25MHz (96 [kHz fs] * 8 [Oversampling] * 32 [Bit Framelength])

I'm right, that the SM5847 is a flatpack with 44 pin ?
If so, Pin 5 outputs the Bitclock for your PCM1704.

http://www.npcamerica.com/Datasheets/SM5847.pdf
http://www-s.ti.com/sc/ds/pcm1704.pdf

Regards

Jobstens
  Reply With Quote
Old 13th July 2004, 09:31 AM   #4
Cesium is offline Cesium  France
diyAudio Member
 
Join Date: Jul 2004
Location: France
Well, I'm going to explain what I would like to do.

Actually, my system is composed of a transport unit and FM receiver, and a processor unit opticaly linked.

Looking in manuals services, it seems that transport unit uses a 16,9344MHz (384.fs) clock to extract the CD's data, and a 11,2896MHz (256.fs) clock for the ADC (PCM1800) for a Sample Rate Converter (SM5849) and for a Digital Interface (TC9271). After this, the datas are transmied via optical link to the processor unit.

These datas are received by LC89055 (datasheet wanted) that seems to recover a 384.fs clock using its internal PLL. This recovery clock is then send to the 2 SM5847 digital filters and to the PD1710 (sort of digital filter I suppose, datasheet wanted). The 6 PCM1704 following these digital filters are configured to receive a 192.fs BCLK (44.1kHz x 24 x 8).

My goal is to upgrade the clock system to decrease as more as possible the jitter.
After studies of transport ICs, it seems easy to configure ADC, SRC and DIT to accept 384.fs clock (some pins to configure). So, 3 solutions appears:

1) get a good clock (LCAudio X03) at 384.fs, put it in the processor unit and distribute it to the SM5847s and the PD1710. Using a electrical connexion, send this clock to the transport unit to keep synchronisation and uses it for data extraction and for modified ICs.

2) Better solution but a little more complicated. Same as 1 for the electrical connexion to the transport and for the Digital filters, but divide the 384.fs clock to a 192.fs for the DACs. But I need to keep the same 192.fs that this one going out the SM5847 to keep phase with data. (I get one solution).

3) I have SM5847's datasheet, so I can modify pins to configure them in 192.fs clock instead of 384.fs. If I could get information on the mysterious PD1710 to make the same, I would just have to divide by 2 without need to keep the phase, more simple to me.

I'm waiting actually for the new equipments to replace my old one on which I'll try making the changes. Before, I'll make measurements to confirm my theory.

So, if someone has some infos on bolded ICs, it would be nice.

Best regards
Cesium.
  Reply With Quote
Old 13th July 2004, 04:17 PM   #5
diyAudio Member
 
jobstens's Avatar
 
Join Date: Jun 2004
Location: near Hannover
Default Re: Sanyo LC89055W Digital audio Receiver

Quote:
Originally posted by Cesium
I'm also looking for datasheet or information on the IC PD7010A1 (I think manufacturer is Pioneer)

Quote:
Originally posted by Cesium
the PD1710 (sort of digital filter I suppose, datasheet wanted).
Now, what you are looking for ?
PD7010 od PD1710 ???

Regards

Jobstens
  Reply With Quote
Old 13th July 2004, 04:22 PM   #6
Cesium is offline Cesium  France
diyAudio Member
 
Join Date: Jul 2004
Location: France
Sorry, I made a mistake .

I'm talking about the PD7010A1.

Regards.

Cesium
  Reply With Quote

Reply


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
Digital Audio Receiver / SRC Chips speakerguy79 Digital Source 4 23rd February 2012 01:34 AM
Experience with the Digital Audio Receiver Sergelisses Digital Line Level 1 24th October 2008 12:04 AM
DIP digital audio receiver...? morpheus82 Digital Source 29 18th August 2006 09:50 PM
Sanyo oscon in digital power supply dariusku Digital Source 14 22nd November 2005 04:54 PM
Sanyo OS-CON SP series 180uf/20v Caps for digital projects, etc. KBK Swap Meet 1 22nd February 2005 12:15 AM


New To Site? Need Help?

All times are GMT. The time now is 06:29 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2