Texas Instruments AFE539A4EVM, User Manual

Page: 11 / 26

Table 3-3. BOOSTXL-DAC-PORT J4 Pin Definitions
Pin# Signal Description
1 AIO0 Analog I/O
2 AGND Analog ground
3 AIO2 Analog I/O
4 AIO4 Analog I/O (AFE_FB3)
5 AGND Analog ground
6 AIO6 Analog I/O (AFE_OUT3)
7 AIO8 Analog I/O
8 AGND Analog ground
9 AIO10 Analog I/O
10 AIO12 Analog I/O (AFE_OUT2)
11 AGND Analog ground
12 AIO14 Analog I/O (AFE_FB2)
13 EXT_REF External reference input
14 GND Ground
15 VCC VCC output
16 VDD VDD output
Table 3-4. BOOSTXL-DAC-PORT J5 Pin Definitions
Pin# Signal Description
1 AIO1 Analog I/O
2 AGND Analog ground
3 AIO3 Analog I/O
4 AIO5 Analog I/O (AFE_VREF)
5 AGND Analog ground
6 AIO7 Analog I/O (AFE_CAP)
7 AIO9 Analog I/O (AFE_FB0)
8 AGND Analog ground
9 AIO11 Analog I/O (AFE_OUT0)
10 AIO13 Analog I/O (AFE_OUT1)
11 AGND Analog ground
12 AIO15 Analog I/O (AFE_FB1)
13 REFGND External reference ground
14 GND Ground
15 VSS VSS output
16 VIO or DAC_VIO VIO or DAC_VIO output
Table 3-5. BOOSTXL-DAC-PORT J12 Pin Definitions
Pin# Signal Description
1 VCC High-voltage positive power supply
2 VSS High-voltage negative power supply
3 GND Ground
4 EXT_VDD External VDD
5 EXT_VIO External VIO
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SLAU859 – JULY 2021
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