The TLC2933 is a voltage-controlled oscillator (VCO) and an edge-triggered phase frequency detector (PFD) designed for high-performance phase-locked-loop (PLL) systems. The oscillation frequency range of the VCO is determined by an external bias resistor (RBIAS). The high-speed PFD with internal charge pump detects the phase difference between the reference frequency input and the signal frequency input from the external counter. Both the VCO and the PFD have inhibit functions that can be used for power-down mode. With its high-speed and stable VCO characteristics, the TLC2933 is well-suited for use in high-performance PLL systems.
