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Old 11th June 2009, 12:04 AM   #1
bcherry is offline bcherry  Hong Kong
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Default Ultimate Clock and Power Supply Duo

The Clock and The Power

Yes we are late to the party. We have wanted a clock/ps module for some time but held back due to the extensive documentation required and, we wanted something decisively better - the best.

So ... we present the world's easiest-to-install, ultimate performance digital clock and power supply system:

The Clock and The Power:

Base Features:
Simple Pin-to-pin direct drop-in replacement for any CD/DVD player Clock Crystal (2-Pin)
Simple drop-in replacement of oscillator modules (4-Pin)
+/- 1pm accuracy
3V / 5V output level setting on board
Unique clock circuit with ultra-low jitter < 1.5 ps RMS
On-Board ultra-low noise, ultra-low impedance, wide bandwidth Super Regulator
LED Voltage monitor
Maxi-Design, choke filtered Power Supply Module included
Gold plated, 70 micron Copper PCB
Specification:
Accuracy: +/- 1ppm
Jitter: 1.5ps
Clock Output: Direct or isolated (selectable)
Power Supply Req.: 115V/230V AC with Power Supply Module
12V DC/50mA without Power Supply Module
Frequencies Available: 11.289600 MHz (CDP most Philips Chipsets)
12.000000 MHz (USB Audio)
16.934400 MHz (CDP most Sony/Sanyo Chipsets)
24.576000 MHz (96/192kHz upsamplers e.g. CS8420)
27.000000 MHz (DVD/SACD/Universal Players)
Attached Images
File Type: jpg clockkitm.jpg (83.0 KB, 2402 views)
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Old 7th March 2010, 05:46 AM   #2
sanura is offline sanura  Europe
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Hi bcherry ,
with what eqiupment you find out the jitter size in ps?
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Old 8th March 2010, 03:41 AM   #3
bcherry is offline bcherry  Hong Kong
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Quote:
Originally Posted by sanura View Post
Hi bcherry ,
with what eqiupment you find out the jitter size in ps?
Manufacturer's data for the TCXO. We have the TCXO made and selected for best phase performance and lowest jitter. They test and provide the data sheet with the product but we don't know what equipment they use to test.
The circuit itself is designed for lowest noise and not the limiting factor.
thanks
Brian
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Old 8th March 2010, 06:08 AM   #4
sanura is offline sanura  Europe
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I see,I am just heard from Vil the creator of lessloss dac,that to find out less when 30 ps jitter requires very expensive tool,so I dont know
thnx.
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Old 8th March 2010, 08:21 AM   #5
bcherry is offline bcherry  Hong Kong
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Yes it is true.
Maybe only a manufacturer of TCXO would keep such equipment on hand. A trustworthy manufacturer provides the data sheet with measurements for each unit, as does ours.
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Old 8th March 2010, 10:16 AM   #6
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So you measure the clock jitter, do you measure the jitter of the clock and pcb as inserted into another piece of kit? Surely the TCXO is only as good as the implementation..
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Old 8th March 2010, 10:50 AM   #7
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Hint: its not impossible to find Aeroflex measurement system, I know of one that can be approached. Then you have nice plots like those of DDS IC datasheets, down to 10hz.
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Old 9th March 2010, 03:47 AM   #8
bcherry is offline bcherry  Hong Kong
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Quote:
Originally Posted by sq225917 View Post
So you measure the clock jitter, do you measure the jitter of the clock and pcb as inserted into another piece of kit? Surely the TCXO is only as good as the implementation..
Yes true. However inserting the clock pcb into another pc of kit would add it's own variables. We don't have the specialized testing equipment to do a direct measurement, however the PS has less than uV of noise so the limiting factor is the TCXO itself. The manufacturer provides us with the test data for each unit of TCXO. In fact the majority test <1ps.

regards
Brian
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Old 19th March 2010, 12:40 PM   #9
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Hi BCherry,
Could you share with us how much each module cost? I mean the clock and the PS module separately? Many Thanks!
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Old 29th March 2010, 03:26 AM   #10
bcherry is offline bcherry  Hong Kong
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Quote:
Originally Posted by CheerfulYC View Post
Hi BCherry,
Could you share with us how much each module cost? I mean the clock and the PS module separately? Many Thanks!
180USD for the clock and $90USD for the PS.
EZ Ultimate Clock System | Diy HiFi Supply
regards
Brian
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