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.
Ribbon cable pinouts
| # | Name | Value |
| B1 | DGND | Digital Ground |
| A1 | DVDD | +2.5V |
| B2 | SDA | I2C Data |
| A2 | SCL | I2C Clock |
| B3 | DGND | Digital Ground |
| A3 | DVDD | +2.5V?? |
| 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?? |
| A25 | AVDD | 2.5V |