Hello.
Why you use 6 pin footprint of ETC1-1-13 in the layout but according to datasheet the footprint contains only 5 pin.
Pls see the link for related datasheets and modules and understand my problem.
1. ETC1-1-13--------> http://www.digikey.com/product-detail/en/ETC1-1-13TR/1465-1217-1-ND/4429914
2. DAC3484EVM schematic and laoyut pdf.-----------> http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slrr002&fileType=zip
and find the attached image file an see the section in which I have doubt.