Si550 REVISION D VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO) 10 MHZ TO 1.4 GHZ Features Available with any frequency from Internal fixed crystal frequency Si5602 10 to 945 MHz and select ensures high reliability and low frequencies to 1.4 GHz aging Available CMOS, LVPECL, 3rd generation DSPLL with LVDS, and CML outputs superior jitter performance (0.5 ps) 3.3, 2.5, and 1.8 V supply options 3x better temperature stability than Industry-standard 5 x 7 mm SAW-based oscillators package and pinout Excellent PSRR performance Pb-free/RoHS-compliant Ordering Information: Applications See page 11. SONET/SDH Low-jitter clock generation xDSL Optical modules Pin Assignments: 10 GbE LAN/WAN Clock and data recovery See page 10. Description (Top View) The Si550 VCXO utilizes Skyworks Solutions advanced DSPLL circuitry to provide a low-jitter clock at high frequencies. The Si550 supports any V V C 1 6 DD frequency from 10 to 945 MHz and select frequencies to 1417 MHz. Unlike traditional VCXOs, where a different crystal is required for each output OE 2 5 CLK frequency, the Si550 uses one fixed crystal to provide a wide range of output frequencies. This IC-based approach allows the crystal resonator to provide GND 3 4 CLK+ exceptional frequency stability and reliability. In addition, DSPLL clock synthesis provides superior supply noise rejection, simplifying the task of generating low-jitter clocks in noisy environments typically found in communication systems. The Si550 IC-based VCXO is factory-configurable for a wide variety of user specifications, including frequency, supply voltage, output format, tuning slope, and temperature stability. Specific configurations are factory programmed at time of shipment, thereby eliminating the long lead times associated with custom oscillators. Functional Block Diagram V DD Any-Frequency Fixed 10 MHz1.4 GHz CLK+ Frequency DSPLL XO CLK Clock Synthesis ADC Vc OE GND Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 17, 2021Si550 TABLE OF CONTENTS 1. Electrical Specifications .3 2. Pin Descriptions .10 3. Ordering Information .11 4. Package Outline and Suggested Pad Layout .12 5. 6-Pin PCB Land Pattern .13 6. Top Marking 14 6.1. Si550 Top Marking 14 6.2. Top Marking Explanation .14 Document Change List .15 Contact Information 16 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 17, 2021