The SN74LV4046A is a high-speed silicon-gate CMOS device that is pin compatible with the
CD4046B and the CD74HC4046. The device is specified in compliance with JEDEC Std 7.
The SN74LV4046A is a phase-locked loop (PLL) circuit that contains a linear
voltage-controlled oscillator (VCO) and three different phase comparators (PC1, PC2, and PC3). A
signal input and a comparator input are common to each comparator.
The signal input can be directly coupled to large voltage signals, or indirectly coupled
(with a series capacitor) to small voltage signals. A self-bias input circuit keeps small voltage
signals within the linear region of the input amplifiers. With a passive low-pass filter, the
SN74LV4046A forms a second-order loop PLL. The excellent VCO linearity is achieved by the use of
linear operational amplifier techniques. Various applications include telecommunications, digital
phase-locked loop and signal generators.
View datasheet View product folder