SNAS739D June 2018 – May 2020 LMX2615-SP
PRODUCTION DATA.
OSCin supports single or differential-ended clock. There must be a AC -coupling capacitor in series before the device pin. The OSCin inputs are high impedance CMOS with internal bias voltage. TI recommends putting termination shunt resistors to terminate the differential traces (if there are 50-Ω characteristic traces, place 50-Ω resistors). The OSCin and OSCin* side must be matched in layout. A series AC-coupling capacitors must immediately follow OSCin pins in the board layout, then the shunt termination resistors to ground must be placed after.
Input clock definitions are shown in Figure 69: