570BBC000121DG

Si 5 7 0 / S i 5 71 10 MH Z TO 1.4 G H Z I 2C P ROGRAMMABLE XO/VCXO Features  Any programmable output  frequencies from 10 to 945 MHz and select frequencies to 1.4 GHz   I2C serial interface  3rd generation DSPLL® with superior  jitter performance  3x better frequency stability than  SAW-based oscillators Internal fixed crystal frequency ensures high reliability and low aging Available LVPECL, CMOS, LVDS, and CML outputs Industry-standard 5x7 mm package Pb-free/RoHS-compliant  1.8, 2.5, or 3.3 V supply Applications     Si5602 Ordering Information:  SONET/SDH xDSL 10 GbE LAN/WAN ATE High performance instrumentation  Low-jitter clock generation  Optical modules  Clock and data recovery See page 31. Pin Assignments: See page 30. Description The Si570 XO/Si571 VCXO utilizes Silicon Laboratories’ advanced DSPLL® circuitry to provide a low-jitter clock at any frequency. The Si570/Si571 are userprogrammable to any output frequency from 10 to 945 MHz and select frequencies to 1400 MHz with 500 MHz J 12 kHz to 20 MHz (OC-48) — 0.25 0.40 ps 50 kHz to 80 MHz (OC-192) — 0.26 0.37 Phase Jitter (RMS)1 for FOUT of 125 to 500 MHz J 12 kHz to 20 MHz (OC-48) — 0.36 0.50 50 kHz to 80 MHz (OC-192)2 — 0.34 0.42 Phase Jitter (RMS) for FOUT of 10 to 160 MHz CMOS Output Only J 12 kHz to 20 MHz (OC-48)2 — 0.62 — — 0.61 — 50 kHz to 20 MHz 2 ps ps Notes: 1. Refer to AN256 for further information. 2. Max offset frequencies: 80 MHz for FOUT > 250 MHz 20 MHz for 50 MHz < FOUT 250 MHz 20 MHz for 50 MHz < FOUT