L’Expérience : LHCb

• LHCb est un outil spécialisé, destiné à réaliser la meilleure détection possible des particules « belles » (contenant un quark b) et de leurs produits de désintégration.

LHC (Large Hadron Collider), à chaque point de collision un détecteur

Le détecteur : Calorimetre

Longueur 21mHauteur 10m5600 Tonnes

ECAL : 6000 ch

HCAL : 1500 ch

Calorimetre : Crate Front-end

FEB FEB FEB FEB 3CU FEB FEB FEB FEB

2 freeSlots

(old TVB)

2 freeSlots

(old TVB)

Clk, TFC

6U

3U

Slow Ctrl

Front-end crate with same backplanes and power supply

3U power supply, clock distribution, …

6U links between boards inside the same crate.

New Front-end board with optical link DAQ and LLT.

New Control Board (3CU).

Remove TVB.

Calorimeter crate controller board (3CU)

Ensure signal distribution inside Front-end crate

Clock distribution from the 3CU to all front-end board inside the same crate through 3U backplane.

Slow control through 6U backplane

Fast command (BxId Reset, FE Reset, …) through 3U backplane

Front-end crate

LAL en charge électronique (Arnaud, Charles, Jean-Luc, Francisco, …)

Collaboration “Catalonia team”

FEB (Christophe)

3CU (Olivier)

Conception, production, installation

Shut down 2019-20 : demontage installation

Calorimeter Crate Controller for Upgrade : 3CU

B25

AB

25

B25

AB

25

B7

7

Clock distribution to FEB through 3U_backplane

Power Supply:

3V3

GBLD

Ed

ge-

con

ne

cto

r

I2C

PCB

Laser Diode

VTRx

TOSA

ROSA

PD +GBTIA

1 Bi-directionnallink

120b @ 40MSPS

DC-DC Converter

5V -> 1V2

Uplink

Down-link

E-Port

E-Port

E-Port

24 E-Port

E-Port

General Ctrl

Master

……..

Diff. Signal:Clk, DOUT, DIN

Buffer

PS: 3V3

Ref_Clk[0:7]

E-Port_SC_FEB

x (16)

GBTX

User Buses :

{I2C, //, SPI, JTAG, 12bADC,…} – T°

E-Port

Network Controller

GBT-SCA

Prim. / Second.E-Port_SCA

Slow control to FEB

DC-DC Converter

5V -> 1V5

Protocol used on

the board

M2GL060

VCC Core

VCC I/O_1

VCC I/O_2

USB

DelatchingCtrl.

De

dic

ate

d

Clo

ck IO Clock

Conditioning CircuitL

VD

S

SLVS / LVDS TranslatorL

VD

S

TFC cmd

Ref_Clk[3]

US

B

Slow Control distribution to FEB through 6U_backplane

LE

MO

LE

MO

In_Ext_Clk

Out_Ext_Clk

In_2

In_1

Out_2

Out_1

In_1

Out_

2O

ut_

1

In_2

16 FEB DelatchingCtrl line

1V2

Front Rear

TFC command

In_Ext_ClkE-Port (TFC_cmd)

Buffer

PS: 3V3

TFC command

387 Max user I/Os –10 I/O Banks

TFC cmddistribution to FEB through 3U_backplaneI2C

GPIO

SPI

Clk Ref / PLL Phase Shift.

Clk Manager

…

Ref_Clk[2]

Interfaces

Buffer

PS: 2V5

Ref_Clk[1]

Ref_Clk[2]

Left

Rig

ht

(SLVS)

(LV

DS)

(SLVS)

(SLVS)

(LV

DS)

(LVDS)

(SLVS)

48 b/ 80 Mhz

(TFC cmd)

9 b

Out_Ext_Clk

PS : 1V5

PS : 2V5 , 1V5

5V

{Bidirectional !}

USB Interface Mezzanine

(UM232H-B)

JTAG

FlashProconnection

90LV001

Status Led

I2C

SP

I

GP

IO

USB-I2Cdongle

Slave

I2CDataTTC cmdClockSC

1V5

2V5

Calorimeter Crate Controller for Upgrade : 3CUFront Rear

6U backplane connections

3U backplane connections

GBTx

VTRx

GBT-SCA

IGLOO2

DC-DC converter

FEBs delach. Info ECS distribution

ClockTFC command

3CU board:

9U / 280 mm VME board

Thickness 2.4 mm

Components 999 / Connections 5115

12 layers

Routing very tight around IGLOO2 and GBTx and SCA

3CU : Tests

Two 3CU board prototype available

Optical link from MiniDAQ

External clock generator

USB interface

Power supply, oscilloscope , …

3CU : Tests avec FEB• Test beam en Octobre

• Actuellement : 2eme Proto ou version finale en CAO

• Production courant 2019

• Tests commun globaux, suivi de production, … ?

• CAO

• Tests globaux

• Face Avant, suivi de prod …

• Etc …

• Planning très tendu !!

3CU : status