SLAU913 august 2023 AFE539A4
The AFE539A4EVM provides access to all AFE pins through connection J1 and J2. Figure 2-1 shows the J1 and J2 pin definitions.
Pin# | Signal | Description |
---|---|---|
1 | GND | Ground |
2 | AFE_SDI | SPI SDI signal for AFE |
3 | AFE_SYNC | SPI SYNC signal for AFE |
4 | AFE_SDA | I2C SDA |
5 | GND | Ground |
6 | GND | Ground |
7 | NC | Not Connected |
8 | FTDI_GPIO3 | GPIO3 output of the on-board controller |
9 | AFE_GPIO | GPIO input for AFE539A4 |
10 | AFE_MODE | Stand alone or programming mode selection pin |
11 | AFE_VREF | VREF input to the AFE |
12 | AFE_CAP | LDO bypass capacitor |
13 | AFE_OUT0 | Output pin for AFE |
14 | AFE_ADC | ADC input |
15 | AFE_OUT1 | Output pin for AFE VOUT1 |
16 | AFE_FB1 | Feedback pin for AFE VOUT1 |
Pin# | Signal | Description |
---|---|---|
1 | AFE_VDD | VDD power supply for DAC |
2 | AFE_SCLK | SPI SCLK |
3 | AFE_SDO | SPI SDO |
4 | AFE_SCL | I2C SCL |
5 | EXT_REF | External reference input for DAC |
6 | GND | Ground |
7 | GND | Ground |
8 | GND | Ground |
9 | NC | Not connected |
10 | NC | Not connected |
11 | AFE_AEN | ADC enable pin |
12 | AFE_OUT3 | Output pin for AFE VOUT3 |
13 | GND | Ground |
14 | GND | Ground |
15 | AFE_AIN2 | AFE comparator input |
16 | AFE_FB2 | Feedback pin for AFE VOUT2 |