This part is a kind of semiconductor called 74HC4046.

Function of this product has Phase-locked-loop with VCO.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT4046A Phase-locked-loop with VCO Product specification Supersedes data of September 1993 File under Integrated Circuits, IC06 1997 Nov 25 Philips Semiconductors Product specification Phase-locked-loop with VCO FEATURES • Low power consumption • Centre frequency of up to 17 MHz (typ.) at VCC = 4.5 V • Choice of three phase comparators: EXCLUSIVE-OR; edge-triggered JK flip-flop; edge-triggered RS flip-flop • Excellent VCO frequency linearity • VCO-inhibit control for ON/OFF keying and for low standby power consumption [ ... ]

74HC4046 PDF Datasheet Download