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Sonsivri > Electronics > AVR, 8051 Family and ARM Area (Moderator: bbarney) > Frequency synthesizer with AT89C52 and LC72131
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user112
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Salut tuturor(hello to all)
« on: November 06, 2007, 08:19:33 20:19 »
Proteus project +asm
Frequency synthesizer with AT89C52 and LC72131 (PLL)  10-40MHz  steps 1MHz -100-50-25-10-5-1KHz
serial connection with PC
Software in Labview
autoincrement
TA 8176 used for VCO
real frequency of vco is 90-120MHz
 -80MHz(from quartz osc)=10-40MHz on LCD

made at school for final exam
if you have questions please ask

http://rapidshare.com/files/275211107/sinteza.rar

updated link
update is TA8176 not TDA
sorry for this
« Last Edit: September 06, 2009, 12:36:09 12:36 by user112 » Logged
mick
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« Reply #1 on: November 06, 2007, 10:45:44 22:45 »
Is there any     
Frequency synthesizer chip for 0-1000 Hz
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user112
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« Reply #2 on: November 07, 2007, 05:21:35 05:21 »
>I don't know but you can obtein this range mixing and filtering for example 4-5MHz from PLL to an osc with quartz of 4MHz rezult 0-1000Khz with step 1KHz and after dividing with 1000 you obtain 0-1000Hz with step of 1Hz in this way you have high stability

or you can try with http://pdf1.alldatasheet.com/datasheet-pdf/view/118258/ETC/NE565.html
« Last Edit: November 07, 2007, 05:48:08 05:48 by user112 » Logged
Tomandr
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« Reply #3 on: May 06, 2008, 10:35:22 10:35 »
I could not find the file sinteza.rar and download it, Can you give the correct link?
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tanveerriaz
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« Reply #4 on: May 15, 2008, 07:43:45 07:43 »
This file has been deleted.
Reason: No download for a longer period. Inactivity-timeout exceeded
pls upload hare
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user112
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« Reply #5 on: June 16, 2008, 12:30:17 12:30 »
i will upload again soon
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savnik20
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« Reply #6 on: November 18, 2008, 11:05:26 11:05 »
Quote from: user112 on June 16, 2008, 12:30:17 12:30
i will upload again soon
Can you upload again;
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nguyenthanhha
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« Reply #7 on: April 27, 2009, 08:46:51 08:46 »
link die, can you upload it?
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user112
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« Reply #8 on: September 03, 2009, 06:56:52 18:56 »
updated link
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mitsos
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« Reply #9 on: September 04, 2009, 03:48:52 15:48 »
hi

I upload the original file, bigger from that in the start of the thread.

http://rapidshare.com/files/275560654/Frequency_synthesizer.rar

regards
mitsos
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