Tent XO3 Clock

[Google]

I am working at reclocking the spdif of my Sony CDP-X5000 and I was told by a local distributor that the 74HC74 can be employed for reclocking. He said that the Tent XO3 uses a Philips 74HC74N for reclocking and he offered to share with me the design of the XO3 for a small fee.

It would be great if someone can point to me where I can download the design or send me a copy of the design of the Tent XO3 clock. Many thanks!

 

[pinkmouse]

Why not just buy a Tent clock, they're not expensive. Anyway, Guido is a member here, so you could always ask nicely, rather than ripping him off.

 

[Guido Tent]

I am working at reclocking the spdif of my Sony CDP-X5000 and I was told by a local distributor that the 74HC74 can be employed for reclocking. He said that the Tent XO3 uses a Philips 74HC74N for reclocking and he offered to share with me the design of the XO3 for a small fee.

It would be great if someone can point to me where I can download the design or send me a copy of the design of the Tent XO3 clock. Many thanks!

Indeed, it is an HC74

It is not my practice to share the designs, and my distributors are aware of that. They do not have circuit diagrams.

As it is weird practice from distributors, to earn (extra money) on sharing my designs (on top of selling them), I would appreciate if someone could forward a link to this thread to this distributor, so he is aware of my statement.

best

 

[LTK]

What do you guys make of this PLL (Phase Locked Loop)
synthesizing digital output

http://us.geocities.com/koalavilla/audio_tweak.htm

 

[Guido Tent]

What do you guys make of this PLL (Phase Locked Loop)
synthesizing digital output

http://us.geocities.com/koalavilla/audio_tweak.htm

I wonder why someone uses a PLL in a 1-box solution

 

[jean-paul]

It's all in the link:

I found that this PLL is a effective tweak. This is also the same skill used by Theta.

 

[LTK]

I wonder why someone uses a PLL in a 1-box solution

It is strange isn't it!
I just found that site whilst I was browsing the net looking for SAA7220 datasheet.
Whilst your here Guido I wondered if I could ask you a quick question if you don't mind🙂 I'd like to clock my spare Arcam A5 cdp (not the + version) with one of your XO's, I use this player in NOS.
Would it be better to fit your clock to the SAA7220 or directly to the SAA7310?

Cheers🙂

 

[Guido Tent]

It is strange isn't it!
I just found that site whilst I was browsing the net looking for SAA7220 datasheet.
Whilst your here Guido I wondered if I could ask you a quick question if you don't mind🙂 I'd like to clock my spare Arcam A5 cdp (not the + version) with one of your XO's, I use this player in NOS.
Would it be better to fit your clock to the SAA7220 or directly to the SAA7310?

Cheers🙂

Hi

The clock quality is most important at the DAC. The rest of the players' electronics runs in sync.

Unfortunately the clock usually is generated in the decoder or servo electronics, and transported through some chips to the DAC, adding more jitter.

Depending on the circuitry, the DAC can be clocked directly from a newly placed clock. Usually the TDA1541 runs at half the crystal frequency, reason why my clockboards do have an optional /2 output.

If above doesn't work out, best to clock the chip as close as possible to the DAC, i.e. SAA7310.

best

 

[LTK]

Hi

The clock quality is most important at the DAC. The rest of the players' electronics runs in sync.

Unfortunately the clock usually is generated in the decoder or servo electronics, and transported through some chips to the DAC, adding more jitter.

Depending on the circuitry, the DAC can be clocked directly from a newly placed clock. Usually the TDA1541 runs at half the crystal frequency, reason why my clockboards do have an optional /2 output.

If above doesn't work out, best to clock the chip as close as possible to the DAC, i.e. SAA7310.

best

Cheers Guido,

The standard A5 cdp has bog standard clock circuit compared to the A5+, it just goes to the SAA7220

 

[Guido Tent]

Cheers Guido,

The standard A5 cdp has bog standard clock circuit compared to the A5+, it just goes to the SAA7220

try to directly clock the DAC too, when upgrading your clock, it is worth the trouble

have to feed our daughter and to bed now, it is 11 AM here

cheers

 

[LTK]

try to directly clock the DAC too, when upgrading your clock, it is worth the trouble

have to feed our daughter and to bed now, it is 11 AM here

cheers

OK, Thanks again Guido, your advice is much appreciated

Your an hour infront of us so good night🙂

 

[Ruach]

Hi Guido,

Can you confirm that the your X03 use the PHILIPS 74HC74N chip? The markings on the X03 that I bought from you has been scratched off, and it make the X03 kind of ugly (no offense to you).

I would like to replace the scratched chip with another one which Farnell sells for about 50 cents for comestics purposes.

Is this ok with you and will this void the warranty? Thanks.

 

[Guido Tent]

Hi Guido,

Can you confirm that the your X03 use the PHILIPS 74HC74N chip? The markings on the X03 that I bought from you has been scratched off, and it make the X03 kind of ugly (no offense to you).

I would like to replace the scratched chip with another one which Farnell sells for about 50 cents for comestics purposes.

Is this ok with you and will this void the warranty? Thanks.

Spend some more money, buy a 14P DIL socket and a dozen HC74 chips, from various manufacturers, listen to them all and take your pick.

Takes 2 hours and 10 USD

best

 

[Elso Kwak]

74VHC74

Hi Guido,

Can you confirm that the your X03 use the PHILIPS 74HC74N chip? The markings on the X03 that I bought from you has been scratched off, and it make the X03 kind of ugly (no offense to you).

I would like to replace the scratched chip with another one which Farnell sells for about 50 cents for comestics purposes.

Is this ok with you and will this void the warranty? Thanks.

Hi Ruach, While you are at it try also 74VHC74 from Fairchild or Onsemi.

 

[Ruach]

Thanks Guido, you are the best 🙂

I have yet to fix the XO3 in my cd player. Thanks for your patience in asking my questions. Too bad that X03 are not readily available in Singapore.

 

[Ruach]

Re: 74VHC74

Hi Elso,

I will try the VHC74 logic. I do not have any measurement equipment.

I can report the results subjectly and qualitatively i.e. through hearing 🙂

Hi Ruach, While you are at it try also 74VHC74 from Fairchild or Onsemi.

 

[Guido Tent]

Thanks Guido, you are the best 🙂

I have yet to fix the XO3 in my cd player. Thanks for your patience in asking my questions. Too bad that X03 are not readily available in Singapore.

Hi

My distributor usually does not stock the XO3, but they can be ordered, if not, ordering directly is also possible.

succes with your listening test to logic gates, very interesting.....