SNAS800 July 2021 LMX1204
In many cases, not all pins will be needed. Table 8-2 gives recommendation on handling of these unused pins.
|All Vcc Pins||These pins must always be connected to the supply. If the block that this powers is not used, then the bypassing can be minimized or eliminated.|
|SYSREFREQ||If driving single-ended, the complimentary input should have a AC-coupling capacitor and 50 Ω to ground. If using continuous SYSREF Generator mode, these pins can be either used to turn the output buffers on and off or they can be pulled high. To pull high, set SYSREFREQP to 1.5 V and SYSREFREQN to 0.5 V. If not using SYSREF at all, pins can be left open.|
|CLKIN Complimentary Input||If driving single-ended, the complimentary input should have a AC-coupling capacitor and 50 Ω to ground.|
|BIAS01 and BIAS23||These pins can be left open if multiplier is not used.|
|These pins can be left open if not used.|