VFAT readout electronics

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A VFAT board from CERN is evaluated for use as a readout board to convert the GEM output analog signal to a digital signal.

LVDS
I2C


Ribbon cable pinouts

# Name Value Test rig color
Primary/Second
B1 DGND Digital Ground Black/Grey (shared)
A1 DVDD +2.5V Red/Grey (shared)
B2 SDA I2C Data Green/Yellow
A2 SCL I2C Clock Yellow/Green
B3 DGND Digital Ground Black/Grey (shared)
A3 DVDD +2.5V Red/Grey (shared)
B4
A4
B5 I2C ADDR I2C Address (most or least significant??)
A5 I2C ADDR I2C Address (most or least significant??)
B6 I2C ADDR I2C Address (most or least significant??)
A6 REH-S Soft Reset (Program saved)
B7
A7 REH-B Hard Reset
..............
B22 DGND Digital Ground??
A22 SCAN E
B23 AGND Analog Ground
A23 AVDD 2.5V
B24 AGND Analog Ground
A24 AVDD 2.5V
B25 AGNDD Analog Ground?? Grey/Black
A25 AVDD 2.5V