DUNE CRYO WIBModificationsBNL Team 1/23/2019

Modifications to ProtoDUNE WIB

• FEMB Clock distribution• Two clocks distributed to each FEMB bypassing FPGA

• FEMB Power • A linear regulator add to feed power down to FEMB

• FEMB communication• Two IO Signals added to FEMB data cable

2

3

SI5344 SY58608

PLL Jitter Cleaner

1:2FANOUT

To FPGA

SY89832From FPGA

To FEMB DATA CABLEFEMB 0

CMD

FEMB 1CMD

FEMB 2CMD

FEMB 3CMD

SY89847

To FEMB DATA CABLEFEMB 0

CLK

FEMB 1CLK

FEMB 2CLK

FEMB 3CLK

From FPGA

Not Used

DUNE CLK DUNE CLK

ProtoDUNE WIB CLOCK DISTRIBUTION

1:5FANOUT

1:4FANOUT

4

SI5344

SY89832

PLL Jitter Cleaner

To FPGA

Not Used

SY89847

From FPGA

To FEMB DATA CABLEFEMB 0

CMD

FEMB 1CMD

FEMB 2CMD

FEMB 3CMD

SY89847

To FEMB DATA CABLEFEMB 0

CLK

FEMB 1CLK

FEMB 2CLK

FEMB 3CLK

From FPGA

Not Used

Not Used

DUNE CLK DUNE CLK

DUNE CLK

1:2FANOUT

1:5FANOUT

1:5FANOUT

DUNE CRYO WIB CLOCK DISTRIBUTION

ProtoDUNE WIB POWER

5

LTM4644

DC2DC

DC2DC

DC2DC

DC2DC

DC2DC LTM8029

LDOTPS73201

2.5V @ 140mA

2.5V @ 1A

2.5V @ 1A

2.5V @ 1A

LDO 2.5V @ 1ATPS74401

2.65V @ 1A

3.3V

2.65V

DUNE CRYO WIB POWERScheme 1

6

LTM4644

DC2DC

DC2DC

DC2DC

DC2DC

DC2DC LTM8029

LDOTPS73201

2.5V @ 100mA

2.5V @ 1A

2.5V @ 1A

LDO 2.5V @ 1A

LDO 2.5V @ 1A

TPS74401

TPS74401

2.65V @ 1A

3.3V

2.65V

2.65V

DUNE CYRO FEMB POWERConnector

• Samtec Power cables

7

Total combined current Should not exceed 140mA

DUNE CRYO WIB POWERScheme 2

8

LTM4644

DC2DC

DC2DC

DC2DC LTM8029

LDO

LDO

LDO

5.5V

Front Pannel

FUSE

FUSE

FUSE

FUSE

DC2DC

DC2DC

FEMB

ADJ V@ 2.5A

V+ Sense

V- Sense

5 V@ 100mA

DUNE CYRO FEMB POWERConnector

• Samtec Power cables

9

Total combined current Should not exceed 140mA

Total combined current Should not exceed 2.5A

Signals Added to FEMB Cold Data Cable

10

Not connected to FPGA

Connected to FPGA

Connected to FPGADIFF Pairs

DUNE CYRO FEMB Cold DataConnector

11

TX Data 0

TX Data 1

TX Data 2

TX Data 3

FPGA IO

FPGA IO

FPGA IO

FPGA IO

FPGA IO

FPGA IO

CLK 0

CLK 1

LVDS

LVDS

LVDS

LVDS

LVDS

LVDS

LVDS pairsswapped

12

13