LMK02002 Datasheet | Texas Instruments

.ti. SNAS418 - AUGUST 2007 LMK02002 Precision Clock Conditioner with Integrated PLL Check for Samples: LMK02002 Features - 2 20 fs Additive Jitter - Integrated Integer-N PLL with Outstanding Normalized Phase Noise Contribution of -224 d Bc/Hz - Clock Output Frequency Range of 1 to 800 MHz - 4 LVPECL Clock Outputs - Dedicated Divider and Delay Blocks on Each Clock Output - Pin patible Family of Clocking Devices - 3.15 to 3.45 V Operation - Package: 48 Pin WQFN (7.0 x 7.0 x 0.8 mm) TARGET APPLICATIONS - Data Converter Clocking - Networking, SONET/SDH, DSLAM - Wireless Infrastructure - Medical - Test and Measurement - Military / Aerospace DESCRIPTION The LMK02002 precision clock conditioner bines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The device integrates a high performance Integer-N Phase Locked Loop (PLL), and four LVPECL clock output distribution blocks. Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system ponents. The clock conditioner es in a 48-pin WQFN package and is footprint patible with other clocking devices in the same family. Functional Block Diagram OSCin OSCin- R Divider N Divider Phase...