[hpsdr] kind of Hermes back to open source version

[Marc Lalonde]

HI All

Sorry for lack of news was busy whit day work and setup my station

i now doing final PCB part placement  and route Critical part

and that raise a new question / pool

did i need to keep exact connector position  ? (led ,LAN Jack etc )
ideally i prefer move it for improve routing ,but that make board no fit 
old box
but assume user that interest to my board will not use it on ANAN radio ?


this was result of last pool ...

Hermes "Phenix"
for that version i chose to keep FPGA code compatibility
so have force to delay some new feature

1-) (reported to V2) swap FPGA for BGA and bigger Version
2-) (reported to V2) add anoter LPC2208 ADC
3-) redo power suply section OKI DC-DC + TI Hight PRSS LDO
4-) rempace 10mhz osc by hight presisision oven Xtal
5-) add bufferissed 122.88Mhz clock for DEMI xverter  LO ( not yet sure 
will do it for this version)
6-) isolate some input / output ( probabely all)
7-) metal can for RF section / Supply
8-) (reported to V2)  ADC in LVDS or cmos soft selectable ,LVDS = less 
noise
9-) redo micrel PHY section from scratch
10-) bufered 10MHZ ouptut for Kuhne Xverter or sililar
11-) swap 0805 part for 0603  and QFN for some IC
12-) max 6 layer board  100% hand routed
13-) (cancelled du to populrd demand)  may remove the audio section for 
simplify not yet sure for this one ..
14-) redo external 10Mhz Input

that the Beta Schematic , still need to add audio connector and other 
small thing ..
www.alphatronique.com/Hermes_VE2OLM_V7.pdf

Best 73!
Marc Lalonde
VE2OLM

On 06/05/2014 10:20 AM, Marc Lalonde wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi All
>
> i planing to make new version of hermes and relase it under open 
> source license
> that include Schematic ,PCB and Gerber
>
> that not intended to be a copy of the current design but improved  
> version whit many change
> and naturally put it back on open source community  ,and of course fit 
> my own radio need ;-)
>
> for now that list of change ..
>
> Hermes "Phenix"
>
> 1-) swap FPGA for BGA and bigger Version for better routing of high 
> speed signal
> 2-) add another LPC2208 ADC  (still to determined for that revision 
> what to avoid to play to much on FPGA )
> 3-) redo power supply section and power distribution  use OKI DC-DC +  
> local TI Hight PRSS LDO
> 4-) rempace 10mhz OSC circuit by Copermicus GPS module  or FGPMMOPA6H  
> + MNEA  and 1PPS to FPGA for time
> 5-) add bufferised 122.88Mhz clock for DEMI xverter  LO
> 6-) isolate some input / output ( probably all)
> 7-) metal can for RF analog section  , one for TX one for RX
> 8-) ADC in LVDS or cmos soft selectable ,LVDS = less noise since 
> balenced and matche lenght
> 9-) redo micrel PHY section from scratch whit newer PHY chip and 
> bigger Volt isolation Jack
> 10-) bufered 10MHZ ouptut for Kuhne Xverter or sililar use
> 11-) swap 0805 part for 0603  and QFN for some IC (DAC better routing )
> 12-) max 6 layer board  100% hand routed
> 13-) may remove the audio section for simplify not yet sure for this 
> one ..
>
> for now 40% of schematic was done  and planing to complete it in next 
> 10 day
> take bit long since i work whit PDF Hermes schematic and i find many 
> error on it to ..
>
> next week-end will try to find place were put file
>
> bit about myself ,Marc Lalonde  VE2-OLM  was hamradio since 1992 whit 
> advence license ,
> was Senior IPC Certified PCB Designer whit > 20 year experience in 
> high speed circuit
> i own and operate Alphatronique Inc.  that a Design house whit in 
> house SMT Automated Assembly line
> for last 10 year most of my job was as subcontractor  Design/Assembly 
> for GE Smart Grid
> have absolutely no interest to start a radio company since my current 
> position was FUN ,RELAX , and LUCRATIVE
> so what to keep it as is
>
> so if some one have suggestion of feature to implement it time  before 
> i close shematic
>
> Best 73!
>
> VE2OLM
>
>
>
>
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