Here's the schematic of the DSP and digital filter section in my Sony CDP620 player. I'm trying to get I2S from DSP and connect it directly to TDA1543. I'm not sure if I used proper connection, as I got very week signal in left channel and noise in the right one. I made the following connections from filter pins (CX23034) to TDA1543:
pin 8 (BCLK) -----> pin 1
pin 7 (Data) -----> pin 3
pin 6 (WCLK) -----> pin 2 of TDA1543
plus I connected ground from Sony board to the TDA1543 chip.
Will it work?
pin 8 (BCLK) -----> pin 1
pin 7 (Data) -----> pin 3
pin 6 (WCLK) -----> pin 2 of TDA1543
plus I connected ground from Sony board to the TDA1543 chip.
Will it work?
Attachments
I2S from Sony chip
Hi Peter,
Very probably the signals coming from the DSP are not Philips I2S format but Sony/Burr-Brown format.
You can convert the Sony format to I2S by the schematic published by Kal Rubinson in the Audio Amateur 1, 1997.
Backissues available at www.audioxpress.com
😎
Hi Peter,
Very probably the signals coming from the DSP are not Philips I2S format but Sony/Burr-Brown format.
You can convert the Sony format to I2S by the schematic published by Kal Rubinson in the Audio Amateur 1, 1997.
Backissues available at www.audioxpress.com
😎
AD1865
Hi Peter,
yes I did that in my old Sony as my first NON-OS experiment. Sound is too soft though as you are not using the two MSB bits . With the AD1865 actually you need some kind of zero stuffing scheme. Porobably also the reason Audionote is using the CS8414 in there CD-2 CDP. The 16 bit AD1851 gives normal output in the Sony but sounds worse than the AD1865.😎
Hi Peter,
yes I did that in my old Sony as my first NON-OS experiment. Sound is too soft though as you are not using the two MSB bits . With the AD1865 actually you need some kind of zero stuffing scheme. Porobably also the reason Audionote is using the CS8414 in there CD-2 CDP. The 16 bit AD1851 gives normal output in the Sony but sounds worse than the AD1865.😎
Re: Re: BB-DAC
Hi Bricolo,
I think it is due to the DAC. The PCM56 is a first generation DAC. The AD1851, also 16 bit, was a lot better overall. 😎
Bricolo said:
Hi Bricolo,
I think it is due to the DAC. The PCM56 is a first generation DAC. The AD1851, also 16 bit, was a lot better overall. 😎
Re: Re: Re: BB-DAC
from what i've undsetood on the "how does a delta sigma dac work?" topic, R2R seems better (no HF garbage) for non os
but on the manufacturer's sites, i can't see which one is r2r or d/s
which dacs are R2R?
Elso Kwak said:
from what i've undsetood on the "how does a delta sigma dac work?" topic, R2R seems better (no HF garbage) for non os
but on the manufacturer's sites, i can't see which one is r2r or d/s
which dacs are R2R?
Re: Re: Re: Re: BB-DAC
AD1851, AD1865, PCM56 are R2R
All Crystal/ Cirrus Logic are Delta-Sigma.
AD1853, AD1854, AD1855, AD1857, AD1858, AD1859 are all Delta-Sigma. Most Delta-Sigma DACs have built in (on chip) digital filter and are thus unsuitable for a NON-OS application.
I which catogory the TDA1543 & TDA1541 DAC belong I don't know
Well Bricolo, if you read the datasheets you will find that most manufacturers mention the kind of DACBricolo said:
AD1851, AD1865, PCM56 are R2R
All Crystal/ Cirrus Logic are Delta-Sigma.
AD1853, AD1854, AD1855, AD1857, AD1858, AD1859 are all Delta-Sigma. Most Delta-Sigma DACs have built in (on chip) digital filter and are thus unsuitable for a NON-OS application.
I which catogory the TDA1543 & TDA1541 DAC belong I don't know
Peter Daniel said:
No. You will not get I2S out of this DSP without a considerable amount of glue logic. The CX23034 is strictly a Sony format device and I mean Sony not Sony/BB.
For the input to the CX23034.
Pin5 = LRCK@44.1KHz
Pin6 = WCLK@88.2KHz
Pin7 = Serial Data (Two's Complement MSB first)
Pin8 = BCLK@48Fs (2.116800MHz)
You need the TDA1543A
ray.
what's this TDA1543A? I found nothing about it on philips's website not in the TDA1543's datasheet 
Thanks,
That makes sense, as LRCK seemed to be needed in that application.
So using AD1865 is not that simple either with that format?
That makes sense, as LRCK seemed to be needed in that application.
So using AD1865 is not that simple either with that format?
TDA1543A
Yes that's a serious omission in the datasheet.
The TDA1543A is not two's complement but offset binary.
Don't ask me to explain it. Horowitz has a page about these digital formats
Hi Bricolo,Bricolo said:what's this TDA1543A? I found nothing about it on philips's website not in the TDA1543's datasheet
Yes that's a serious omission in the datasheet.
The TDA1543A is not two's complement but offset binary.
Don't ask me to explain it. Horowitz has a page about these digital formats
Re: TDA1543A
The TDA1543A is emphatically NOT offset binary in any way, shape or form . It is Two's comp with 48 SCLK cycles per L/R frame.
ray.
Elso Kwak said:
Hi Bricolo,
Yes that's a serious omission in the datasheet.
The TDA1543A is not two's complement but offset binary.
Don't ask me to explain it. Horowitz has a page about these digital formats
The TDA1543A is emphatically NOT offset binary in any way, shape or form . It is Two's comp with 48 SCLK cycles per L/R frame.
ray.
Re: Re: Deriving I2S from Sony CDP
Hi ray,
Must Peter use LRCK or WCLK to connect to pin 2 (WS) of the TDA1543A ? What is the difference between the two versions of the TDA1543?😕
rfbrw said:
Hi ray,
Must Peter use LRCK or WCLK to connect to pin 2 (WS) of the TDA1543A ? What is the difference between the two versions of the TDA1543?😕
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