CT20900
25MHz to 200MHz Low Jitter Low Power PLL
CT20900 is a PLL providing 33, 66, 50 and 200MHz clocks based on a 25MHz reference clock. It comprises a Phase Frequency Detector with internal charge pump that detects the phase difference between the 25MHz reference clock and the divided by 8 version of the 200MHz clock generated by the Voltage Controlled Oscillator (VCO).
The loop includes a second order Low Pass Filter (LPF).
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Fully Differential Topology
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Charge Pump 3rd order configuration
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2nd order passive loop filter
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Fin = 25MHz, Fout = 33, 50, 66 and 200MHz
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Maximum Jitter < 50ps
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Max current consumption = 2.3mA
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Automotive Ethernet
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Baseband Telecom
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Silicon Proven
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OnSemi ONC18 0.18μm HV-CMOS technology
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Easy portability