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EuCard WP10.6 – LLRF at FLASH. Development of Fast ADC Card for the LLRF System Samer Bou Habib. Agenda. Main goal and applications Function in LLRF Hardware System concept Measurement Result Future plans. Main goal and Applications. Fast ADC testing for LLRF

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Eucard wp10 6 llrf at flash

EuCard

WP10.6 – LLRF at FLASH

Development of FastADC Cardfor the LLRF System

SamerBouHabib


Agenda
Agenda

  • Maingoal and applications

  • Functionin LLRF

  • Hardware

  • System concept

  • MeasurementResult

  • Futureplans


Main goal and applications
Maingoal and Applications

  • Fast ADC testingfor LLRF

  • Applications

    • DirectSampling (IQ detection)

    • Digital phasedetection

    • Amplitudedetection



Llrf system with dwcs
LLRF system withDWCs

8 x cavity

Master Oscillator

klystron

RF powertransmition

A & F

to LO

PS

Timing

8x transmitted

Vector modulator

8x forward and reflectedpower

DAC

DSP/FPGA

8 x

8 x

DAC

Digital/analog feedbackcontroller

LO

LO

LO

LO

LO

LO

LO

LO

LO

LO

LO

LO

ADC

ADC

ADC

ADC

ADC

ADC

ADC

ADC

ADC

ADC

ADC

ADC

Down-converters

8 x


Llrf system with fast adcs
LLRF system with Fast ADCs

Master Oscillator

8 x cavity

klystron

RF powertransmition

A & F

ADC

ADC

ADC

PS

8 x

8 x

8 x

Timing

ADC

ADC

ADC

8x transmitted

Vector modulator

8x forward and reflectedpower

DAC

DSP/FPGA

DAC

Digital/analog feedbackcontroller


Benefits
Benefits

  • ReplacingDWCs and data-analyzingboardswith single design

    • Lower cost

    • RemovingproblemswithDWCs (non-linearities and drifts)

  • Eliminatingcomplex LO generation


Hardware
Hardware

  • Actual

    • 2 x ATCA board

      • 12-bit 500 MSPS 2.3 GHz BW

      • 14-bit 400 MSPS 1.4 GHz BW

  • Future

    • uTCAVersion

    • Amplitudedetector for ADCM

    • Opticalsignalsphase measurement


System concept for actual hardware
System Concept for Actual Hardware

Processordaughterboard

Diagnostics

ExternalInterfaces

FPGA

(IQ detection,

Pre-processing)

USER

Trigger

8 x

ADC

Dopasowanie

ADC

Dopasowanie

ADC

ATCA

Dopasowanie

ADC

Dopasowanie

ADC

Dopasowanie

ADC

Dopasowanie

ADC

1.3 GHzSignal

Dopasowanie

ADC

Matching

Pamiec SRAM

Pamiec SRAM

Pamiec SRAM

SRAM

Clocksynthesis and distribution

Referenceclock



Measurement result
MeasurementResult

  • Amplitudestability~2e-4

RF input

To PC

CLK

reference

  • IQdetection


Future plans
FuturePlans

  • Finishtests for the ATCA boards

  • Test performance and effect on FLASH

  • Prepareboards for thenewstandards (uTCA) / futureapplications


Eucard wp10 6 llrf at flash

Thankyou for yourattention

S.BouHabib@stud.elka.pw.edu.pl