I just picked up the si5351a and the thing that jumps out at mee is the 228
registers to program.
Granted it lets you create just about any frequency and there is a good
program that tells you what to set the registers to. But 228 registers is a
lot.
The traditional I2C is indeed simple. Make sure
On 11/18/14, 8:04 AM, paul swed wrote:
I just picked up the si5351a and the thing that jumps out at mee is the 228
registers to program.
Granted it lets you create just about any frequency and there is a good
program that tells you what to set the registers to. But 228 registers is a
lot.
The
Clue-less.
As to the good code I have only found maybe 1 site. I thought there would
be more. I think it was hackaday.
Regards
On Tue, Nov 18, 2014 at 12:58 PM, Jim Lux jim...@earthlink.net wrote:
On 11/18/14, 8:04 AM, paul swed wrote:
I just picked up the si5351a and the thing that jumps out
Jim,
thre is some info at:
http://www.box73.de/product_info.php?products_id=1869
it's all in German. If you can read that, goto Zusaztinformationen
(additional informations) where you will find a comprehensive articel
(pdf-document) also in German language (no I have not played with it).
enjoy
I have one of these: http://sdr-kits.net/PA0KLT_Description.html
built with the CML output Si570 that goes to 1417 MHz (!)
There is a schematic in the assembly manual that's linked to from that
page. They use 100n and 1n capacitors in parallel on Vdd and 4K7 pullups
on SCL/SDA. They have 100n
On 11/18/14, 10:24 AM, Götz Romahn wrote:
Jim,
thre is some info at:
http://www.box73.de/product_info.php?products_id=1869
it's all in German. If you can read that, goto Zusaztinformationen
(additional informations) where you will find a comprehensive articel
(pdf-document) also in German
On 11/18/14, 11:19 AM, Orin Eman wrote:
I have one of these: http://sdr-kits.net/PA0KLT_Description.html
built with the CML output Si570 that goes to 1417 MHz (!)
There is a schematic in the assembly manual that's linked to from that
page. They use 100n and 1n capacitors in parallel on Vdd
Hi Jim:
A number of hams have built VFOs using this chip, for example here's some data:
http://www.cliftonlaboratories.com/si570_kit_from_k5bcq.htm#Frequency_Spectrum
Mail_Attachment --
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
Jim-
Do you need to tune it? The 571 is the VCXO - but if you're feeling
adventuresome you could drive the 570 as an NCO (numerical) via its i2c
interface.
NS
On Tuesday, November 18, 2014, Jim Lux jim...@earthlink.net wrote:
On 11/18/14, 11:19 AM, Orin Eman wrote:
I have one of these:
