Evm Power-Supply Inputs; J3: Power-Supply Interface Header - Texas Instruments ADS8339EVM-PDK User Manual

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EVM Power-Supply Inputs

J3 is the power-supply input connector.
Pin Number
J3.3
J3.5
J3.6
J3.7
J3.9
J3.10
P3.1-2, P3.4, and P3.7-8
4.1 Analog Power Options
The ADS8339EVM board functions with a 5-V supply provided at J3.3 by the MMB0 motherboard,
powering the onboard reference, op amps, and the analog supply of the ADS8339.
4.2 Digital Power Options
The ADS8339EVM connects the digital power supply of the ADS8339 to +3.3VD (J3.10) to match the 3.3-
V logic level of the MMB0 motherboard.
4.3 Analog and Digital Grounds
The EVM only has one ground plane for all analog and digital supplies; pins J3.5 and J3.6 are tied
together to this ground plane. Therefore, connect both supply grounds to pins J3.5 and J3.6 so they share
the same ground.
SBAU233A – October 2014 – Revised November 2015
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Table 3 lists the configuration details for J3.
Table 3. J3: Power-Supply Interface Header
Pin Name
+5VA 5-V analog supply
GND Analog and digital ground
(single ground board)
GND Analog and digital ground
(single ground board)
+ 1.8VD 1.8-V digital supply
+3.3VD 3.3-V digital supply
+5VD 5-V digital supply
Unused Unused
Copyright © 2014–2015, Texas Instruments Incorporated
EVM Power-Supply Inputs
Function Required
Yes
Yes
Yes
No
Yes
Optional
No
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ADS8339EVM-PDK