MC100EP40

MC100EP40 3.3V / 5V ECL Differential Phase-Frequency Detector Description The MC100EP40 is a three−state phase−frequency detector intended for phase−locked loop applications which require a minimum amount of phase and frequency difference at lock. Advanced design significantly reduces the dead zone of the detector. For proper operation, the input edge rate of the R and V inputs should be less than 5 ns. The device is designed to work with a 3.3 V / 5 V power supply. When Reference (R) and Feedback (FB) inputs are unequal in frequency and/or phase the differential UP (U) and DOWN (D) outputs will provide pulse streams which when subtracted and integrated provide an error voltage for control of a VCO. When Reference (R) and Feedback (FB) inputs are 80 ps or less in phase difference, the Phase Lock Detect pin will indicate lock by a high state (VOH). The VTX (VTR, VTR, VTFB, VTFB) pins offer an internal termination network for 50 W line impedance environment shown in Figure 2. An...