Texas Instruments ADS131M04, User Manual, Page: 9 / 34

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Digital Interface
9 SBAU332A – March 2019 – Revised June 2019
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ADS131M04 Evaluation Module
3.3 Digital Header
In addition to the PHI, the EVM has a header connected to the digital lines that can be used to connect a
logic analyzer or oscilloscope. This placement allows for easy access to the digital communications.
Header J6 is connected to the digital lines between the ADS131M04 and the PHI connector.
Table 6
describes the digital header pins.
Table 6. Digital Header Pins
ADS131M04 Pin Name Digital Header Pin
SYNC/RESET J6[1]
DIN J6[2]
CLK J6[3]
CS J6[4]
SCLK J6[5]
DRDY J6[6]
DOUT J6[7]
GND J6[8]
3.4 LaunchPad™ Connectors
On the bottom side of the ADS131M04EVM board is a set of unpopulated surface-mount connectors (J7
and J8). When populated, these devices can be used to connect to a TI LaunchPad™ directly as a typical
BoosterPack™ plug-in module.
Connectors J7 and J8 are a set of 10x2, 100 mil connectors. As shown in Table 7 , the pin numbers for J7
and J8 map to the pin numbers for a standard 40-pin LaunchPad™ connector.
Table 7. LaunchPad™ Pin Functions
ADS131M04EVM Connection ADS131M04EVM (J7, J8) LaunchPad™ Connection
+3.3V J8[1] Pin 1
SCLK J8[7] Pin 7
DOUT J7[14] Pin 14
DIN J7[12] Pin 15
GND J7[2] Pin 20
+5V J8[2] Pin 21
GND J8[4] Pin 22
DRDY J7[7] Pin 37
CS J7[5] Pin 38
SYNC/RESET J7[3] Pin 39
CLK J7[1] Pin 40