Help! Recover a Sony CDP main board

quantran · 28th April 2005, 07:53 AM

Hi

I have a main board from a dead Sony CDP. It has the following ICs:

CXD2500Q
CXD2551P (digital filter?)
CXD8097S
AD1860 x 2 (DAC)

I want to build a DAC from this board by:

- building a new power supply for it
- feeding the CXD 2551 with digital data from a CS8412

Can anyone advise me the input data format for the CXD2551 and it pin configuration or let me know where I can get the data sheet for the above ICs?

By the way what is the purpose of the CXD8097? This is between the CXD2551P and the AD1860s.

Thanks

machinow · 28th April 2005, 08:56 AM

Hi, It will be easier to indentify the incoming signals from CXD2500, they should be named on the PCB. The main clock should be 16.9344MHz, the format is Right-Justified, 48BCK pulses per LRCK period /this for outgoing from 2500 bus/. I have the CXD2554 DF, and some of its pins description.
but search for the CXD2500 over the net, you may find datasheet somewhere

quantran · 28th April 2005, 09:12 AM

Thank you , machinow. I will look closer at the board and see.

A'af · 24th May 2005, 09:22 AM

Hi mchinow.
I have a little question here, is it cxd2554 as a digital filter doing oversampling?

28th April 2005, 07:53 AM	#1
quantran diyAudio Member Join Date: Apr 2004 Location: Hanoi	Help! Recover a Sony CDP main board Hi I have a main board from a dead Sony CDP. It has the following ICs: CXD2500Q CXD2551P (digital filter?) CXD8097S AD1860 x 2 (DAC) I want to build a DAC from this board by: - building a new power supply for it - feeding the CXD 2551 with digital data from a CS8412 Can anyone advise me the input data format for the CXD2551 and it pin configuration or let me know where I can get the data sheet for the above ICs? By the way what is the purpose of the CXD8097? This is between the CXD2551P and the AD1860s. Thanks __________________ Quan Tran

28th April 2005, 09:12 AM	#3
quantran diyAudio Member Join Date: Apr 2004 Location: Hanoi	Thank you , machinow. I will look closer at the board and see. __________________ Quan Tran

24th May 2005, 09:22 AM	#4
A'af diyAudio Member Join Date: Nov 2001 Location: Indonesia, Jakarta	cxd2554 Hi mchinow. I have a little question here, is it cxd2554 as a digital filter doing oversampling?

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28th April 2005, 08:56 AM	#2
machinow diyAudio Member Join Date: Dec 2002 Location: Bulgaria, Sofia	Hi, It will be easier to indentify the incoming signals from CXD2500, they should be named on the PCB. The main clock should be 16.9344MHz, the format is Right-Justified, 48BCK pulses per LRCK period /this for outgoing from 2500 bus/. I have the CXD2554 DF, and some of its pins description. but search for the CXD2500 over the net, you may find datasheet somewhere

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