Author Topic: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator  (Read 75087 times)

DaveR, Tyree and 2 Guests are viewing this topic.

Offline ArthurDent

  • Regular Contributor
  • *
  • Posts: 96
  • Country: us
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #100 on: November 05, 2017, 05:42:25 am »
You asked: "Is that a HHttG reference, or are you actually named Arthur Dent?"

This is a screen shot of the EEVBlog screen when I just registered. I had to save it because of what the answer to the last question was going to be. Certainly not a coincidence and I almost couldn't believe it! My 'real' name is Arthur Phillip Dent.   ;)
 

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #101 on: November 05, 2017, 05:58:18 am »
That is hilarious  :-DD

But it has to be a coincidence. If people making HH references was normal enough for the web-admin to program such a Easter egg, your username would have been gone already.
Anyway, let me go and make up some towel jokes to include in the next couple of posts...

Edit: waaait a minute: It's actually more likely you decided on that user handle after you read the question ???



More seriously: I was assuming that S1 is a JTAG connector, but admittedly for no other reason that I would expect an unpopulated  JTAG on such a board, I did not follow the traces. But I am still thinking if you want to replace the timebase, you'd have to desolder the xtal module.

Edit: Yes, the chip between the S1 and the 50MHz is a Winbond 25Q16BVSIG : 16MBit Serial Flash with Dual SPI
It has at least 6 connections with the S1, so that makes it *very* likely some sort of SPI based programming header, like JTAG

« Last Edit: November 05, 2017, 07:08:18 am by cybermaus »
 

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #102 on: November 05, 2017, 07:07:01 am »
While following the JTAG, I noticed 4 configuration solder islands labeled J10 J11 and J12 J6
Toward the back of the device, 2 on each side.

Not sure what they configure, my 60M board is coded like this:
J10 - closed by thin pcb trace
J11 - open, no pcb trace and no solder drop

J12 - closed by thin pcb trace
J6  - open, no pcb trace and no solder drop

So no solder drops, nor any scratched traces, meaning default PCB hardware.
I guess it would be too easy if this was the 60M 30M 15M frequency selection, but you guys check anyway.
 
The following users thanked this post: Mr. Scram

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #103 on: November 05, 2017, 08:04:14 am »
By PM request, some sine pics.

Mind you, not sure why you want these, if you think you can "eyeball" sine quality, you would be better off checking the spectrum pics a page back, they are much more relevant. The only thing you can get from these pics is a slight attenuation toward higher frequencies, which may as well be my scope rather then the AWG.

Also, please note the scope measurement at the bottom cannot be trusted on decimals. It is constantly jumping from 19.8 to 20.0 to 20.2, showing it lacks resolution.

20Mhz to 60MHz 1Vpp 50 Ohm
« Last Edit: November 05, 2017, 08:09:11 am by cybermaus »
 
The following users thanked this post: xzswq21

Offline Diabolo

  • Regular Contributor
  • *
  • Posts: 88
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #104 on: November 05, 2017, 12:35:48 pm »
Hello,

http://www.eevblog.com/forum/testgear/feeltech-fy6600-60mhz-2-ch-vco-function-arbitrary-waveform-signal-generator/?action=dlattach;attach=366988;image


The integrated circuit on each side of U302 is MCP 4822E Dual 12-Bit Voltage Output DAC.

Regards,
Diabolo
 
The following users thanked this post: xzswq21, Ebel0410

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #105 on: November 05, 2017, 08:20:32 pm »
By PM request, some sine pics.

Mind you, not sure why you want these, if you think you can "eyeball" sine quality, you would be better off checking the spectrum pics a page back, they are much more relevant. The only thing you can get from these pics is a slight attenuation toward higher frequencies, which may as well be my scope rather then the AWG.

Also, please note the scope measurement at the bottom cannot be trusted on decimals. It is constantly jumping from 19.8 to 20.0 to 20.2, showing it lacks resolution.

20Mhz to 60MHz 1Vpp 50 Ohm

good job :) I see 0.5dB  attenuation at 20MHz and 2dB attenuation at 60MHz.

when the input impedance of your Oscope is 1M || 15pF and use a 50R capline, the VSWR<1.3 for up to 55MHz.  :horse:
but it depends on the quality of BNC T Adapter and other parasitic inductance, it could be 110MHz.  :bullshit:
so it's better to use an Active Adapter.

Thanks
Thanks
 

Offline Ebel0410

  • Contributor
  • Posts: 39
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #106 on: November 05, 2017, 09:29:33 pm »
The puzzle is almost complete, thanks to all the contributors :-+

1   CH340G             /USB to serial
2   HC245               /octal bus transceiver
3   25Q16BVSIG      /Winbond 16MBit Serial Flash with Dual SPI
4   EP4CE6E22C8N  /FGPA Altera Cyclone4
5   DAC904             /14 bits DAC 165Msps =Channel 2
6   DAC904             /14 bits DAC 165Msps =Channel 1
7   MCP4822E         /Dual 12-Bit Voltage Output DAC (level Ch2)
8   MCP4822E         /Dual 12-Bit Voltage Output DAC (level Ch1)
9   OPA686N           /wideband low noise voltage amplifier
10 OPA686N           /wideband low noise voltage amplifier
11 JRC4558D          /Dual op amp
12 ?                       /wideband amplifier
13 ?                       /wideband amplifier
« Last Edit: November 05, 2017, 09:39:40 pm by Ebel0410 »
 
The following users thanked this post: xzswq21

Offline Ebel0410

  • Contributor
  • Posts: 39
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #107 on: November 05, 2017, 10:38:26 pm »
Hi all
Did someone tried to play around with arbitrary waves with the FY6600 PC Software?
I'm facing issues when I try to open waveforms that were previously saved (file xxxx.FY).
After having opened the file, the waveform is always not corresponding to the saved one, the scale and the plots are totaly messy  |O

Hereafter, a printscreen of a ramp waveform saved and then reloaded !

Update : the method described above wasn't the right one (thanks to cybermaus), you'd better use "text window" and "add waveform" to perform the handling of custom waveform.
« Last Edit: November 06, 2017, 02:20:53 am by Ebel0410 »
 

Offline Chris56000

  • Regular Contributor
  • *
  • Posts: 146
  • Country: gb
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #108 on: November 05, 2017, 11:01:50 pm »
Hi!

At the price they are it'd be within my monthly pocket-money allowance to buy one simply for the purpose of tearing-down and depopulating for the purposes of compiling a full proper instruction & service manual, and the posts in this thread so far, so if the superb clever chaps on here can pinpoint the last two chips U12 & U13 that'll be the inspiration I need to buy one for reverse-engineering purposes!

Is it worth looking in the EL-series to see if there's a pin-out match for the last two chips? Is there a way of removing the small square ali heat-sink from the O/P amplifier chips without risking wrecking the PCB it's made on?

PS!

1) Can anyone tell me how to extract pictures from PDFs and the little icons on toolbar buttons, etc., like they do to write software/product instruction manuals?

2) Has anyone dismantled the front-panel/display assembly of one of these and got the type-no and pixel-size spec. of the TFT colour display module yet?

Chris Williams
« Last Edit: November 05, 2017, 11:19:29 pm by Chris56000 »
It's an enigma that's what it is!! This thing's not fixed because it doesn't want to be fixed!!
 

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #109 on: November 06, 2017, 12:08:39 am »
Hi all
Did someone tried to play around with arbitrary waves with the FY6600 PC Software?
I'm facing issues when I try to open waveforms that were previously saved (file xxxx.FY).
After having opened the file, the waveform is always not corresponding to the saved one, the scale and the plots are totaly messy  |O

Hereafter, a printscreen of a ramp waveform saved and then reloaded !

Just works for me:
Opened tool. Made a waveform (combined sine, triangle and ramp), saved it.

Closed program, reopened program, loaded the waveform, no problem (attachment 1)

The only slightly odd thing is, if you "Open" a waveform, you get a dialog that has title&button "Save"
But it is actually loading the file, not saving it. (attachment 2)





 
The following users thanked this post: xzswq21, Ebel0410

Offline metrologist

  • Super Contributor
  • ***
  • Posts: 1116
  • Country: 00
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #110 on: November 06, 2017, 03:00:07 am »
Hi!

PS!

1) Can anyone tell me how to extract pictures from PDFs and the little icons on toolbar buttons, etc., like they do to write software/product instruction manuals?

Chris Williams

If you have Acrobat, full version, there is usually a menu item to save all images as jpg. I am not familiar with any 3rd party Acrobat tools. Otherwise, you can just view at 100% and take a screen capture - tedious if there are many images...
 

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #111 on: November 06, 2017, 04:29:46 am »
1) Can anyone tell me how to extract pictures from PDFs and the little icons on toolbar buttons, etc., like they do to write software/product instruction manuals?
If you have Acrobat, full version, there is usually a menu item to save all images as jpg. I am not familiar with any 3rd party Acrobat tools. Otherwise, you can just view at 100% and take a screen capture - tedious if there are many images...

Or if your budget is lower, GhostScript is the de-factor free-and-open-version. Very technical, but there are some interfaces like muPDF around it.
And many of the other commercial but cheap PDF tools are usually based on Ghostscript, but dumbed down for easy use.

I have not been active with that for a while, so not up to speed which of the cheap ghostscript wrap-arounds is currently best. Last time I used it was Foxit, actually not based on Ghostscript (or hidden very well). But that was years ago.
 

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #112 on: November 06, 2017, 04:42:31 am »
Hi!
1) Can anyone tell me how to extract pictures from PDFs and the little icons on toolbar buttons, etc., like they do to write software/product instruction manuals?

Chris Williams

Dear
I have prepared a simple video for you: (all the tools is free!)
http://s9.picofile.com/file/8311018192/Untitled_2017_11_05_21_01_24.mp4.html

if you want to extract the icons from any software, you can use Resource hack or any similar software.

Regards
Thanks
 
The following users thanked this post: Chris56000

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #113 on: November 06, 2017, 04:54:26 am »
I want to buy a FY6600 Function generator.
in contrast to the Feeltech's AD, the DAC IC is 160MSPS.
now I'm hesitating whether to choose 30MHz or 60MHz versions. Are you satisfied with your 60MHz version? or 30MHz is better?

Best Regards
« Last Edit: November 06, 2017, 05:02:00 am by xzswq21 »
Thanks
 

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #114 on: November 06, 2017, 05:06:38 am »
Inspired by ArthurDents clock remark, I ordered a uBlox NEO-M8N module (arduino ready) for $10.
At the very least I should be able to turn that into a stand-alone 10MHz GPS reference singal, but maybe also add a x5 PLL and make this AWG run of it.
I took the M8N version, because it has flash, so you can configure it once and then hook it in.

If that works, one would have a better then 1ppm (uBlox claims 5ppb) generator as well as frequency counter.
Then all those digits they display (60.000.000.000.000 uHz) actually make sense  ::)

I am thinking a NB3N502 PLL, because it can do x5 on a 10MHz signal, as well as passes through the original 10MHz buffered. And it is cheap. But if anyone has other suggestions.

Edit: later thinking is a double NB3N502. Because uBlox writes that only 1, 2, 4, 8 MHZ (any division of the internal 48MHz clock) is jitter free, whereas a 10MHz has significant jitter. So 2.5x VCO PLL on 4MHz would clean up an already good base signal. An 2nd x5 would then buffer out the 10MHz as well as provide the 50MHz.

Also, uBlox claims a 5ppm "holdover" precision when the GPS is not locked, so that is pretty much equal to the current 50.0000 VCXO
Probably because they internally use a 48.0000 VCXO themselves.
« Last Edit: November 10, 2017, 06:28:33 am by cybermaus »
 

Online Marco

  • Super Contributor
  • ***
  • Posts: 3245
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #115 on: November 06, 2017, 05:13:21 am »
now I'm hesitating whether to choose 30MHz or 60MHz versions. Are you satisfied with your 60MHz version? or 30MHz is better?

Just for reference, there's an Ebay seller which ships from Frankfurt ... and he only sells the 60 MHz version. Don't know if that matters to you, but because it's above the custom limit for my country that clinched it for me. I don't want it for MHz signal generation, so that didn't matter to me.
 
The following users thanked this post: xzswq21

Offline cybermaus

  • Frequent Contributor
  • **
  • Posts: 467
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #116 on: November 06, 2017, 05:22:04 am »
Just for reference, there's an Ebay seller which ships from Frankfurt ... and he only sells the 60 MHz version. Don't know if that matters to you, but because it's above the custom limit for my country that clinched it for me. I don't want it for MHz signal generation, so that didn't matter to me.

Yeah, nowadays I just assume and budget for €20 handling + VAT extra when I buy stuff like that. Most off the bigger items are snatched by customs nowadays. Gone are the free days of the 2005~2015 era. However to my surprise, the FY6600 was *not* taxed.

I am sure they did take it out of the queue and must have handled it, because the address label had been tampered with, a new local Dutch one placed on top and it took an unusual (but not impossible) 5 weeks to arrive. (usual is 2 to 4).

But the expected "please pay extra" letter from KPN was not there. I think they could not recognize it from the X-Ray. 
 

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #117 on: November 06, 2017, 05:35:48 am »
now I'm hesitating whether to choose 30MHz or 60MHz versions. Are you satisfied with your 60MHz version? or 30MHz is better?

Just for reference, there's an Ebay seller which ships from Frankfurt ... and he only sells the 60 MHz version. Don't know if that matters to you, but because it's above the custom limit for my country that clinched it for me. I don't want it for MHz signal generation, so that didn't matter to me.

there are some sellers in aliexpress. the ship cost is $43,  the total price is $150~$170.
some people here uploaded some pics, the quality based on these pics is good but I'm very concerned about it!  :horse:
you know Chinese manufacturers use very low quality components in their designs! (after 6 month all capacitors, inductors, silkscreen,... will be corrupted)
 
My Brother told me, it's better to buy a Rigol to tune your medical board. (only check AC response and step response, the desired frequency is 10KHz to 20MHz)
for Harmonic distortion and noise analysis I will use other instruments.
I'm a student and don't want to pay money a lot.

Thanks
« Last Edit: November 06, 2017, 05:42:51 am by xzswq21 »
Thanks
 

Online Marco

  • Super Contributor
  • ***
  • Posts: 3245
  • Country: nl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #118 on: November 06, 2017, 05:41:46 am »
I am sure they did take it out of the queue and must have handled it, because the address label had been tampered with, a new local Dutch one placed on top and it took an unusual (but not impossible) 5 weeks to arrive. (usual is 2 to 4).
The one from Frankfurt I ordered Saturday and I got I think Wednesday, so that's another thing to consider.
 

Offline Ebel0410

  • Contributor
  • Posts: 39
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #119 on: November 06, 2017, 07:17:30 am »
I ordered mine (30MHz version) from Fasttech, they sell both 30 and 60MHz.
Paid 88$ (~75€), with no shipping fees or taxes added.
 
The following users thanked this post: xzswq21

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #120 on: November 06, 2017, 07:33:14 am »
I ordered mine (30MHz version) from Fasttech, they sell both 30 and 60MHz.
Paid 88$ (~75€), with no shipping fees or taxes added.

I have never been seen this website! it seems OK :) the price and shipping cost in the website is lower than aliexpress and other similar.
where is the origin of this website?
Thanks
« Last Edit: November 06, 2017, 07:40:18 am by xzswq21 »
Thanks
 

Offline Diabolo

  • Regular Contributor
  • *
  • Posts: 88
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #121 on: November 06, 2017, 12:55:44 pm »
Hello,

For FY6600 generators the maximum frequency is valid for the sinusoidal signal, the other signals capping at 20-25 mhz.
The 2 integrated circuits under the aluminum radiator are 4558.
The crystal quartz reference for the Altera Cyclone FPGA is still 50 mhz in FY 6600 and FY2300H.
The output level of the signals is guaranteed stable only on 5 volts, or below.
Sellers always indicate the characteristics, you need to consult them.
Pay attention to customs fees that can be charged by the customs of each country.
By going through the NL post we escape customs taxes since NL is European, that's why the delivery labels are replaced.

Regards,
Diabolo
 
The following users thanked this post: xzswq21

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #122 on: November 06, 2017, 04:54:39 pm »
Hello,

For FY6600 generators the maximum frequency is valid for the sinusoidal signal, the other signals capping at 20-25 mhz.
The 2 integrated circuits under the aluminum radiator are 4558.
The crystal quartz reference for the Altera Cyclone FPGA is still 50 mhz in FY 6600 and FY2300H.

Dear are you sure the IC is 4558?  |O

device has a 1.7 V/?s slew rate
Unity-Gain Bandwidth: 3 MHz Typ
8 nV/?Hz Typ at 1 kHz

The device is a dual general-purpose operational amplifier, with each half electrically similar to the ?A741, except that offset null capability is not provided.
this amplifier ideal for voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation ensures stability without external components.
Thanks
 

Offline Ebel0410

  • Contributor
  • Posts: 39
  • Country: fr
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #123 on: November 07, 2017, 07:31:16 am »
Hi xzswq21
Fasttech is located in Hong Kong.

Regards
 
The following users thanked this post: xzswq21

Offline xzswq21

  • Regular Contributor
  • *
  • Posts: 115
  • Country: pl
Re: FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
« Reply #124 on: November 07, 2017, 09:35:15 am »
it's interesting!
*updated
I hope to @Ebel0410 will post the quality of FY6600-30MHz soon :) :popcorn:


for your information:
I want to make a comparison between SDG1010 (Siglent 10MHz), SDG1032x (High quality Siglent 30MHz) and Fy6600!!!  :-DD

inside the SDG1010 (Siglent 10MHz):




inside the SDG1032x (High quality Siglent 30MHz):

this is the quality of SDG1032x:



inside FY6600:


one of drawback of FY6600 is the LPF is placed before OPAMP.
another thing the Low CMRR of Amp stage (due to design)

and I don't know about the capacitors type inside FY6600 (at page 4 there are some tech information)
the Layout is very important.
and some area should be ground free!
« Last Edit: November 07, 2017, 10:02:54 am by xzswq21 »
Thanks
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf