SNLS479B NOVEMBER 2014 – May 2020 DS90UB940-Q1
PRODUCTION DATA.
Bypass capacitors must be placed near the power supply pins. At a minimum, use four (4) 10-µF capacitors for local device bypassing. Ferrite beads are placed on the two sets of supply pins (VDD33 and VDDIO) for effective noise suppression. The interface to the graphics source is LVDS. The VDDIO pins may be connected to 3.3 V or 1.8 V. A capacitor and resistor are placed on the PDB pin to delay the enabling of the device until power is stable. See Figure 37 for a typical STP connection diagram and Figure 38 for a typical coax connection diagram.