DIY Analog-to-Digital Converter project.Audio measurements tool - Page 16 - diyAudio
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Old 25th January 2011, 01:59 PM   #151
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Quote:
Originally Posted by Frex View Post
Hello luvdunhill
Thank you! I'm squared away on this one.

Once you have a second, could you give me a few pointers on your oscillator project? See here:

LT AN67 Ultralow THD 10kHz sine oscillator group buy.
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Old 23rd February 2011, 05:03 PM   #152
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ok, one more question. Which of the following will work for the inverter U2:

TI SN74AHCT1G14DBVT
On MC74HC1G14DTT1G

I thought I had the right part, but just realized the one I had won't fit :/
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Old 23rd February 2011, 06:17 PM   #153
Frex is offline Frex  France
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Hello,

It's a standard HCMOS single inverter gate in SOT23-5 SMD package.
The TI ref SN74AHCT1G14DBVT is not compatible because it's AHCT gate, it can’t work with 3.3V supply (4.5 to 5.5V).
The ON semi ref MC74HC1G14DTT1G seem to be ok.
Many others manufacturers are same gate.
Regards and good luck.

Frex.
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Old 23rd February 2011, 06:23 PM   #154
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Quote:
Originally Posted by Frex View Post
Hello,

It's a standard HCMOS single inverter gate in SOT23-5 SMD package.
The TI ref SN74AHCT1G14DBVT is not compatible because it's AHCT gate, it canít work with 3.3V supply (4.5 to 5.5V).
The ON semi ref MC74HC1G14DTT1G seem to be ok.
Many others manufacturers are same gate.
Regards and good luck.

Frex.
Thank you! I'll try the On part.

Also, perhaps Mouser 647-RR71A471MDN1 is a better cap than the specified Sanyo SP cap. Just noticed it's a "new technology" at Mouser.
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Old 27th February 2011, 01:39 PM   #155
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thank you for the advise in the documentation for W3 and W4. I will be populating the low noise voltage source.

For W1 and W2 it looks like I need to close W1 and W2, since I will only be providing the +-15VDC input. Is this correct?
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Old 27th February 2011, 04:19 PM   #156
Frex is offline Frex  France
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The two jumpers W1 and W2 allow to check regulated voltages before connected them to all IC. Once you have check this, you can close them.
Regards.

Frex
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Old 14th March 2011, 12:36 PM   #157
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hi
do you still have pcb's for this project??? all chip's and others elements are soldered or it s a kit? i could be interest to order 10 pcs....je parle francais aussi..
merci
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Old 14th March 2011, 06:58 PM   #158
Frex is offline Frex  France
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I answer you by PM in french.

Frex.
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Old 30th March 2011, 01:11 AM   #159
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Quote:
Originally Posted by Frex View Post
The 5 pins DIN connector is a Lumber ref KFV50/60, RS part nį167-3659 or Farnell 119-3067.
Do these connectors need a keyed opening, like on this datasheet? I notice that Frex's documentation just has a simple round hole.

http://www.farnell.com/datasheets/44049.pdf

I don't have any in my hand yet, but wanted to work on the panels.
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Old 30th March 2011, 04:35 AM   #160
Frex is offline Frex  France
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Hello luvdunhill,

You are right, you must make a small notch to maintain the socket connector.
It's not draw on the mechanical drawing, but the connector need it.
Just use a small file to do this notch.With this notch, the connector can not rotate.
Good work .

Frex
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