This part is a kind of semiconductor called AZ12000.
Function of this product has (AZ12000 / AZ12001) Phase-Locked Loop Clock Generator.
Manufacturers : Arizona Microtek
Image and pinout :

Some of the text within the PDF file :
ARIZONA MICROTEK, INC. AZ12000, AZ12001 Phase-Locked Loop Clock Generator FEATURES • • • • • • • • • PECL (AZ12000) or LVDS (AZ12001) Outputs Operating Range 3.0V to 5.5V Internal Crystal Oscillator Driver Internal Edge-Matching Phase/Frequency Detector Internal Charge-Pump and Integrator Amplifier Internal or External VCO Divide by 4, 8, 16, 32 RF Bipolar Design for Low Phase Noise Available in a 4x4mm MLP Package PACKAGE MLP 24 (4x4) MLP 24 (4x4) DIE DIE 1 2 3 PACKAGE AVAILABILITY PART NO. AZ12000K AZ12001K AZ12000XP AZ12001XP MARKING AZ12000 AZ12001 N/A N/A NOTES 1,2 1,2 3 3 Add R1 at end of part number for 7 inch (1K parts), R2 for 13 inch (2.5K parts) Tape & Reel. Date code format: “YY” for year followed by “WW [ ... ]
AZ12000 PDF Datasheet Download
