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Upgrading Mainboard in Lecroy DDA-3000 (aka WavePro 7300a?)

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analogRF:
can somebody tell me what MAD and MFE and MAM and AMB and MTB mean??

DaJMasta:
I think MAD is the ADC and MFE is the frontend... which would make MFEEXT the external trigger frontend module and MTB probably the hardware trigger chip?



That would imply that the MAM and maybe the AMB are between the frontend and ADC/trigger blocks, maybe a switching/routing chip, but I don't see it on the board.  You likely can just look for another thing with a heatsink on the acquisition board and it's probably one of them.

ollopa:

--- Quote from: LeCroy Documentation ---There is some special LeCroy nomenclature employed here. All LeCroy
chips are referred to as three letters beginning with an ’M’ which stands
for monolithic. The complete three letter acronym tries to be descriptive.
Therefore, an MSH is a monolithic sample/hold, an MAD is a monolithic
ADC, and an MAM is a monolithic acquisition memory.

--- End quote ---

MAM: Monolithic Acquisition Memory
MAD: Monolithic ADC
MSH: Monolithic Sample and Hold
MTT: Monolithic Trigger and Timebase
MFE: Monolithic Front End
MTD: Monolithic Time Digitizer
MST: Monolithic Smart Trigger

AAC: Autonomous Acquisitions Control
HTB: Hybrid Timebase Trigger IC
HAD: Hybrid ADC

ZhuraYuk:

--- Quote from: nctnico on November 07, 2019, 11:25:52 pm ---What is the temperature in the room? With a room temperature of around 23 degrees the MAD temperatures in my 7200A are around 66 degrees.

--- End quote ---


Room temperature is 25 celsius. When sample rate is low mine also never rize above 67.

analogRF:

--- Quote from: ollopa on November 08, 2019, 06:36:45 am ---
--- Quote from: LeCroy Documentation ---There is some special LeCroy nomenclature employed here. All LeCroy
chips are referred to as three letters beginning with an ’M’ which stands
for monolithic. The complete three letter acronym tries to be descriptive.
Therefore, an MSH is a monolithic sample/hold, an MAD is a monolithic
ADC, and an MAM is a monolithic acquisition memory.

--- End quote ---

MAM: Monolithic Acquisition Memory
MAD: Monolithic ADC
MSH: Monolithic Sample and Hold
MTT: Monolithic Trigger and Timebase
MFE: Monolithic Front End
MTD: Monolithic Time Digitizer
MST: Monolithic Smart Trigger

AAC: Autonomous Acquisitions Control
HTB: Hybrid Timebase Trigger IC
HAD: Hybrid ADC

--- End quote ---

thanks. Which Lecroy documentation did you get this from?
what remains though is AMB and MTB. MTB is perhaps Monolithic Timebase chip but what is AMB?

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