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 pSor less in phase difference, the Phase Lock Detect pin will indicate lock by a high state. The V
(V
, V
bar , V
, V
bar ) pins offer an internal termination network for 50 line impedance environment shown in Figure 2. An external sinking supply of V
-2 V is required on V
pin(s). If you short the two differential V
and V
(or V
and V
bar ) together, you provide a 100 termination resistance that is compatible with LVDS signal receiver termination. For more information on termination of logic devices, see AND8020.
The V
pin, an internally generated voltage supply, is available to this device only. For single-ended input conditions, the unused differential input is connected to V
as a switching reference voltage. V
may also rebias AC coupled inputs. When used, decouple V
and V
via a 0.01 F capacitor and limit current sourcing or sinkingto 0.5 mA. When not used, V
should be left open.
For more information on Phase Lock Loop operation, refer to AND8040.
Special considerations are required for differential inputs under No Signal conditio

• Maximum Frequency > 2 Ghz Typical
• Fully Differential
• Advanced High Band Output Swing of 400 mV
• Theoretical Gain = 1.11
• T
• 97 pS Typical, F
• 70 pS Typical
• The 100 Series Contains Temperature Compensation
• PECL Mode Operating Range: V
• = 3.0 V to 5.5 V with V
• = 0 V
• NECL Mode Operating Range: V
• = 0 V with V
• = -3.0 V to -5.5 V
• 50Ω Internal Termination Resistor
• These are Pb-Free Devices