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Upcoming Rigol DSG815/830

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tv84:
How to license DSG815/830 options

Insert the following parameters in the usual license generator :

Forever Options:
AAAB  (0x00001) - DSG800-PUM Pulse Modulation & Pulse Generator
AAAC  (0x00002) - DSG800-PUG Pulse Train Generator

Public Key:
6673BBC777EA4D  (Key taken from the current FW. Those interested will have to calculate the Private Key as homework.)  ;)

As always, insert the licenses with SCPI command :SYSTem:LKEY.

Edit: Corrected the options' hex designations.

tv84:
Rigol's Declassification Guide.

JOHN LEE:
looks good!

chicken:
I made a breakout board to explore the the OCXO option for the DSG-815 (option OCXO-B08).
https://beyondmeasure.rigoltech.com/acton/attachment/1579/f-0644/1/-/-/-/-/DSG800%20OCXO%20User%27s%20Guide.pdf



Pinout:
1: GND
2: Detect input
3: slot
4: slot
5: VCC
6: CLK input
7: VCC
8: VCC
9: GND
10: Detect output

VCC is 6.515 V when the signal generator is plugged into mains. This is higher than I expected as the OCXO-B08 datasheet specifies 5.00 V +/- 0.25 V. It didn't drop much with a 220 ohm resistor (~30 mA). Will have to find a bigger resistor to test at loads specified in datasheet (300-600 mA).

Detect output (pin 10) goes from 0 to 3.3 V when the signal generator is turned on. When I connect this pin to Detect input (pin 2) through a 1 K resistor Syst > Information > System Info reports the option OCXO-B08. Interestingly, there's no error message even though I don't feed an external clock signal yet.

CLK (pin 6) was the only pin left. Not tested yet.

The pitch of the pins on the edge-connector is 1mm, 10 positions with a key slot (which is counted as a position). A matching connector is Samtec 1mm Mini Edge Card Socket Vertical, part number MEC1-105-02-F-D-EM2 or MEC1-105-02-L-D-EM2.
https://www.samtec.com/products/mec1-105-02-f-d-em2
https://www.samtec.com/products/mec1-105-02-l-d-em2

The dimensions of my breakout PCB are 32 mm x 50 mm, 1.6 mm thickness. It turned out to be about 3 mm too long, so 32 x 47 mm would be the correct size.

The size of the original OCXO is likely 25.4 x 25.4 mm. There are no good images of the OCXO-B08 to be found, but OCXO options for the DSG3000 (OXCO-A08)  has similar specifications. Some images for that option show an OCXO from DAPU with part number O22B-G445. Unfortunately, that part number doesn't quite match with the numbering-scheme on DAPU's website:
https://www.dptel.com/Products/ProductLevel4/2899



Any thoughts about VCC being 6.5 V?

Any suggestions for a suitable OCXO for this application?

tv84:
Using this information one can easily do a random mistake like this:

DSG815 -> DSG836

 :popcorn:

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