LMK03000

www.DataSheet4U.com LMK03000/LMK03000C/LMK03001/LMK03001C Precision Clock Conditioner with Integrated VCO ADVANCE INFORMATION November 2006 LMK03000/LMK03000C/LMK03001/LMK03001C Precision Clock Conditioner with Integrated VCO General Description The LMK03000/LMK03000C/LMK03001/LMK03001C precision clock conditioners combine the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The devices integrate a Voltage Controlled Oscillator (VCO), a high performance Integer-N Phase Locked Loop (PLL), a partially integrated loop filter, three LVDS, and five LVPECL clock output distribution blocks. The VCO output is optionally accessible on the Fout port. Internally, the VCO output goes through an Input Divider to feed the various clock distribution blocks. Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVDS or LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system components. The clock conditioners come in a 48-pin LLP package and are footprint compatible with other clocking devices in the same family. Features ■ Integrated VCO and Integer-N PLL ■ Two performance grades (12 kHz to 20 MHz) ■ ■ ■ ■ ■ ■ ■ ■ — LMK03000/LMK03001: Less than 800 fs RMS — LMK03000C/LMK03001C: Less than 400 fs RMS Two VCO frequency plans — LMK03000/LMK03000C: 1185 to 1296 MHz — LMK030...