New designed SMD XO adapter
Dedicated for CCHD957 or other SMD XOs in similar package.
NewCCHD957Adapter1 by Ian, on Flickr
Ian
Dedicated for CCHD957 or other SMD XOs in similar package.
NewCCHD957Adapter1 by Ian, on Flickr
Ian
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Get the SPDIF interface board from Ian, and you will be able to do that, too. (Assuming you've got an USB bridge)
Dual XO Question
Dear Ian, or others who might know - what does it mean when all sampling rate LEDS on the Dual XO board flash for about 20 seconds at start-up?.
Thanks,
Hanze
Dear Ian, or others who might know - what does it mean when all sampling rate LEDS on the Dual XO board flash for about 20 seconds at start-up?.
Thanks,
Hanze
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Thanks Ian, I figured it out today.. All the sampling rate LEDs flash at the same with under-voltage to the Dual XO. Extra current from OCXO was pulling down voltage below 4.1V for ADM7150 (wants 4.5V min.) for about 30 seconds, as voltage climbs above ~4.5V, clock board then as normal. Culprit was DCR of CM choke in the RCLC supply to the pre-regulator.
Fixed that and the thing would'nt synch.. turns out faulty cchd957 clock (must have fried it somehow), replaced with this Vanguard thing and it starts up and synchs fine, could have been worse.
Cheers,
Hanze
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Please be careful with the pluSar clock, it's very expensive🙂.
Just noticed that you have a first version of DualXo I. Some body was looking for it days ago.
I would suggest you try the DualXoII, which has external LDO socket. You can use higher current reg such as TPS7A4700 or ADM715X directly for your OCXO.
Regards,
Ian
Thanks Ian,
I've removed the onboard LDO's, and the DC connector back to solder pads, replaced with two L shaped pins, which come up through Pulsars ADM7150 reg PCB thru-hole positions for 3.3V and GND, a third 'blind' pin for DC input, the last two mate with an incoming connector on top.
Problem was not the reg, or the pre-reg but the DCR of a CM choke in the RCLC supply to the pre-reg which was delaying clock board start-up by 30 secs due to under-voltage, separate issue was intermittent lock, until no lock at all, courtesy of faulty (probably fried, it used to work.. ) clock.
This is inside the Crystek, which was on the organ donor list..
Cheers,
Hanze
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Good to see CCHD957 tear down 🙂. The most significant part is the crystal. Maybe you could fix if it wasn't damaged.
Ian
Maybe, but I wanted to see in-side it 🙂
Too fiddly all this stuff for my clunky hands, just happy that you make some really excellent plug and play modules for the diy'er.
Hanze.
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#4561, Casshan
Very nice Build ....
seems there is a Pi under sparky and using tube buffer
Can share which DAC you are using.
Good sound should be expected.
Very nice Build ....
seems there is a Pi under sparky and using tube buffer
Can share which DAC you are using.
Good sound should be expected.
Ian,you can give me a product reference please.
I would like to use them to install the TWTMC-D oscillator on the XO 2 board.
***** Looking for Ian's Original Dual Clock Board *****
I need one of these for a DAC project where Ian's original Dual Clock board will fit the layout, but his later one will not.
Anyone have one they won't use?
Greg in Mississippi
P.S. I've already asked Ian and he doesn't have any left.
I need one of these for a DAC project where Ian's original Dual Clock board will fit the layout, but his later one will not.
Anyone have one they won't use?
Greg in Mississippi
P.S. I've already asked Ian and he doesn't have any left.
Hi Comickitkit,
I'm using PCM 1704, it still my favorite DAC even it cannot natively support DSD...