EC_ASIC drawing (1)

ASIC B ASIC FASIC D

68

pins

ASIC A

68

pins

ASIC C ASIC E

120 pins

A B C D E F

68

pins

68

pins

68

pins

68

pins

EC_ASIC top view

Fixation holes

15 mm

80 mm

20 mm

159 mm

EC_ASIC drawing (2)

56 mm 56 mm

~ 8 mmMechanical structure

EC_ASIC (1.6 mm thick)

Mechanical structure

connector

connector

connector

connector

connector

connector

TOP View

120 pins connector

56 mm 56 mm

~ 8 mmMechanical structure

EC_ASIC (1.6 mm thick)

Mechanical structure

Bottom View

68 pins connector from EC_ASIC (3.5 mm)+68 pins connector from EC_anode (8.5 mm)+EC_anode pcb (1.2 mm)

Side view –estimation

Mechanical structure

EC_ASIC board

CONNECTORS

EC_anode

ASIC

2 2 222 2 2222

HK

1

2

BAT_RET (P)

28V_BAT (P)

GND_28V (S)

GND_3.3V (S)

28V (S)

3.3V (S)

GND_M HVPS-1 would have DC/DC converters to isolate the powers

GND_M

0-2.44V

STATUS

ON/OFF

3 DAC

6 Differential signals (LVDS) ( x2 = 18 wires)between HK and HVPS-1

4 differential transmitters 2 differential receivers

CS_DAC

CS_IO

HVPS-1

MISOMOSISCK

MOSI

MOSI6 bidirectional signals

6 status signals

I/O expanders

4 differential receivers

MISO

InterruptSCK

SCK

Interrupt

HVPS-1 - HVPS-2 - HK - PDM-Board Interface Synoptic : 1st flight version

7

D-Sub 15 F

D-Sub 15 FD-Sub 15 M

D-Sub 15 M

6 C-W

D-Sub 9 FD-Sub 9M

BATTERY

3 C-W6 x 14 HV lines

3 x 14 HV lines

9

9

3

3 ST

ATU

S 3

ON

/OFF

3

0-2.

44VGND_M

HVPS-2CS_DAC

SCKMOSI

CS_OUT 6 DAC6

D-SU

B 2

5 F

D-SU

B 2

5 M

D-Sub 9 FD-Sub 9M

VERSION USED

24 wires

PDM_Board

Micro-D 9 FMicro-D 9 M

4 differential receivers

4 differential transmitters

4 Differential signals (LVDS) ( x2 = 8 wires)between PDM_Board and HVPS-1

4 SWITCHCOMMANDS

4 SWITCHCOMMANDS

2 differential transmitters

Full PDM and potential areas for HVPS

2 possibilities for HVPS: • 20 x 115 mm2• 29 x 53 mm2

After discussions with Jaceks, APC group and Pierre 27 x 53 mm2

chosed

Reminder of the cables/interfaces/connections

HVPS1 HVPS215 lines toward HK (15 D-SUB)

9 lines toward PDM board (9 micro-D)

14 x 3 HV cables 14 x 6 HV cables

28 V + gnd battery (9 D-SUB)

25 lines(25 D-SUB)

159 mm

27 mm

53 mm

14 * 3HV cables

159 mm

27 mm

53 mm

HVPS-1

14 * 6 HV cables

HVPS-2

3D view of the HPVS

NB: 159 mm and 53 mm are the maximum availableBetter if it is less than that to fit more easily.

D-SUB 25 MTo HVPS-1

D-SUB 25 FTo HVPS-2

D-SUB 15 FTo HKD-SUB 9 F

To Battery

Micro-D 9 MTo PDM_Board

Fixation with 2 plates

Top view

Plate used to fixe the HVPS to themechanical structure on the side.

~56 mm ~56 mmLateral view

~120 mm

~120 mm

Fixation plate

Fixation to the Back part of thePDM mechanicalStructure.

Fixation of the HVPSTo the fixation plate

~27 mm

~53 mm

ZONE where to put the holes for

the cables

ZONE where to put the holes for

the cables

~56 mm ~56 mm

~120 mm

~120 mm~27 mm

~53 mm

ZONE where to put the holes for

the cables

ZONE where to put the holes for

the cables

ZONE where to put the holes for

the cables

ZONE where to put the holes for

the cables

If HVPSs don’t lay directly on the fixation plate like bellow

Other possible zones for cables

~56 mm ~56 mm

~60 mm~53 mm

ZONE where to put the holes for

the cables

ZONE where to put the holes for

the cables

ZONE where to put the holes for the cables

Another (better) option:The plate could have half height and be fixed to the mechanical structure with 6 screws.

OR

HVPS13CW +

DAC+ all

DC/DCs

HVPS26CW

+Comman

ds+

DAC

EC_anodeFlex cables

Ballon heater (fixation)

EC_HV boards should be

oriented like that

HVPS1 HVPS2

Positionning of the PDM board on the PDM

FPGA

Ballon heater (fixation)

Positionning of the PDM board on the PDM with respect to the Balloon mechanic

Positionning of the PDM board on the PDM with respect to the Balloon mechanic