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MC74HC4046A
Phase-Locked Loop
High−Performance Silicon−Gate CMOS
The MC74HC4046A is similar in function to the MC14046 Metal gate CMOS device. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.
The HC4046A phase−locked loop contains three phase comparators, a voltage−controlled oscillator (VCO) and unity gain op−amp DEMOUT. The comparators have two common signal inputs, COMPIN, and SIGIN. Input SIGIN and COMPIN can be used directly coupled to large voltage signals, or indirectly coupled (with a series capacitor to small voltage signals). The self−bias circuit adjusts small voltage signals in the linear region of the amplifier.
MC74HC4046A Datasheet
