The LCK4953 is fully 3.3 V compatible and requires no external loop filter components. All control inputs accept LVCMOS or LVTTL compatible levels while the outputs provide LVCMOS levels with the ability to drive terminated 50 transmission lines. For seriesterminated 50 lines, each of the LCK4953 outputs can drive two traces giving the device an effective fan-out of 1:18. For the optimum combination of board density and performance, the device is packaged in a 7 mm x 7 mm 32-lead TQFP package. Table 1. Function Table