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)
25MHz to 200MHz Low Jitter Low Power PLL
Overview
Key Features
- Fully Differential Topology
- Charge Pump 3rd order configuration
- 2nd order passive loop filter
- Fin = 25MHz, Fout = 33, 50, 66 and 200MHz
- Maximum Jitter < 50ps
- Max current consumption = 2.3mA
Benefits
- Easy portability
Block Diagram

Applications
- Automotive Ethernet
- Baseband Telecom
Deliverables
- Datasheet
- Integration guidelines
- GDS2 and LVS Netlist
- Footprint (.LEF)
- Test Specifications
Technical Specifications
Maturity
Silicon Proven OnSemi ONC18 0.18um HV-CMOS technology
Availability
Available
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