The TLC2932I is designed for phase-locked-loop (PLL) systems and 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 (RBIAS). The VCO has a 1/2 frequency divider at the output stage. 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, which can be used as a power-down mode. The TLC2932I is suitable for use as a high-performance PLL due to the high speed and stable oscillation capability of the device.
Voltage-Controlled Oscillator (VCO) Section:
Complete Oscillator Using Only One External Bias Resistor (RBIAS)
Lock Frequency: 22 MHz to 50 MHz (VDD = 5 V ±5%, TA = -20°C to 75°C, ×1 Output) 11 MHz to 25 MHz (VDD = 5 V ±5%, TA = -20°C to 75°C, ×1/2 Output)
Output Frequency...×1 and ×1/2 Selectable
Phase-Frequency Detector (PFD) Section Includes a High-Speed Edge-Triggered Detector With Internal Charge Pump