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Old 19th May 2012, 07:12 PM   #131
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Thank you for your answer Anton.
Is there a big impact if I test the module without SMA/B/C connectors ?
I mean wire directly soldered to the board, distance wil be less than 15cm (-/+6 inches)
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Old 19th May 2012, 11:17 PM   #132
amc184 is offline amc184  New Zealand
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No, it shouldn't be too bad. 15cm is actually substantial, try to keep it less than 10cm (ideally less than 5cm) if you can.
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Old 18th June 2012, 08:26 PM   #133
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Default Patent 7,511,590

US patent 7,511,590 Date of Patent: March 31, 2009
Inventor: Mark Richard Gehring
Assignee: Cypress Semiconductor Corporation

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Old 19th June 2012, 09:09 PM   #134
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Not quite the same, is it...

By the way, the description of the circuit, and the purpose of the differential amplifier (common mode noise rejection) makes me think about the current circuit. Doesn't the use of the comparator completely defeat the purpose of the differential amp?? I mean noise seeps in again through the IC.......

Last edited by studiostevus; 19th June 2012 at 09:35 PM.
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Old 23rd June 2012, 04:19 AM   #135
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Quote:
Originally Posted by studiostevus View Post
Not quite the same, is it...

By the way, the description of the circuit, and the purpose of the differential amplifier (common mode noise rejection) makes me think about the current circuit. Doesn't the use of the comparator completely defeat the purpose of the differential amp?? I mean noise seeps in again through the IC.......
Check the datsheet. CMRR is typical 85dB for the AD8561...
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Old 1st July 2012, 09:07 AM   #136
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Default CD-rom

Anyone tried this in a CD-Rom?
i have a Plextor PX-712A used as transport and i really like it
have used different PS for it and have long time ago scrapped the SMPS and use aether batteries or a LM317 PS. (one for each voltage)
Under is a pic of the crystal, wold be fun to tweak this further

Any thoughts ?
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Old 30th September 2012, 06:27 AM   #137
amc184 is offline amc184  New Zealand
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Hi All,

There's still been quite a bit of interest in this clock, so I've decided to do a second round. It'll be the same as the first round, except for a couple of changes:

- The kit prices will be USD30 for the DC powered version and USD40 for the AC powered version (including PCB). I lost money on the kits I sold in the first round, hence the change. The PCBs are still USD3.00 each.

- The components in the kit will be slightly different, but I might use different brands for the resistors and regulators. I'll post an exact bill of materials soon.

For more details, check back to the first post. I'll finish taking orders for the kits at the end of October (in a month), there won't be any particular deadline for the PCBs, I'll just sell them until I run out like last time.

Thanks,
Anton
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Old 30th September 2012, 12:33 PM   #138
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Hi there,

In this second round GB, I would like to order:

2 x Kit for 7 - 20VDC powered version
2 x Bare PCB

Thanks
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Old 30th September 2012, 03:06 PM   #139
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Hi,
I am interested in 1XAC powered kit and 2 bare pcbs.

Thanks
Badri
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Old 30th September 2012, 03:26 PM   #140
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2x DC version kits

Thanks!
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