NXP 4000 Series Logic Devices
- NXP HEF4046BT, 652, The HEF4046B is a phase-locked loop circuit that consists of a linear Voltage Controlled Oscillator (VCO) & two different phase comparators with a common signal input amplifier & a common comparator input. A 7 V regulator (Zener) diode is provided for supply voltage regulation if necessary. It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input. NXP HEF4046BT, 652 Phase Locked Loop SO-16