The TLC2943 is a multichip module product that uses two TLC2933 chips. The TLC2933 chip is composed of a voltage-controlled oscillator (VCO) and an edge-triggered-type phase frequency detector (PFD). The oscillation frequency range of the VCO is set by an external bias resistor (R BIAS ). The high-speed PFD with internal charge pump detects the phase difference between the reference frequency input and signal frequency input from the external counter. Both the VCO and the PFD have inhibit functions that can be used as a power-down mode. The high-speed and stable VCO characteristics of the TLC2933 make the TLC2943 suitable for use in dual high-performance phase-locked loop (PLL) systems. AVAILABLE OPTIONS