JAJSQ97J may 2009 – january 2021 XIO2001
PRODUCTION DATA
Both 1.5-V and 3.3-V analog power is required by the XIO2001. Since circuit noise on the analog power terminals must be minimized, a Pi filter is recommended. All VDDA_15 pins must be connected together and share one Pi filter. All VDDA_33 terminals must be connected together and share a second Pi filter.
Both the 1.5-V and 3.3-V analog supplies must have 0.1-μF bypass capacitors connected to VSSA (ground) in order for proper operation. The recommendation is one capacitor for each power terminal. In addition, one 1000-pF capacitor per Pi filter is recommended. This 1000-pF capacitor is attached to the device side of the Pi filter and to VSSA (ground). High-speed board design rules must be followed when connecting bypass capacitors to VDDA and VSSA.