Power Supply Connector Pin Header, J3
36
SLAU738 – September 2017
Copyright © 2017, Texas Instruments Incorporated
EVM Connector Descriptions
Note that J5 comprises the signals needed for an I
2
S serial digital audio interface; the control interface (I
2
C
and RESET) signals are routed to J4. I
2
C is actually routed to both connectors; however, the device is
connected only to J4.
A.3
Power Supply Connector Pin Header, J3
J3 provides connection to the common power bus for the TLV320AIC3109EVM. Power is supplied on the
pins listed in
Table 9. Power Supply Pinout
Signal
Pin Number
Signal
NC J3.1
J3.2 NC
+5VA J3.3
J3.4 NC
DGND J3.5
J3.6 AGND
+1.8VD J3.7
J3.8 NC
+3.3VD J3.9
J3.10 NC
The TLV320AIC3109EVM motherboard (the USB-MODEVM Interface board) supplies power to J3 of the
TLV320AIC3109EVM. Power for the motherboard is supplied either through its USB connection or via
terminal blocks on that board.