Si5356A 2 I C PROGRAMMABLE, ANY-FREQUENCY 1200 MHZ, QUAD FREQUENCY 8-OUTPUT CLOCK GENERATOR Features Generates any frequency from 1 to OEB pin disables all outputs or per 2 200 MHz on each of the 4 output banks bank OEB control via I C Programmable frequency configuration Low jitter: 50 ps pk-pk (typ), 75 ps Guaranteed 0 ppm frequency synthesis pk-pk period jitter (max) error for any combination of frequencies Excellent PSRR performance 25 or 27 MHz xtal or 5200 MHz input clk eliminates need for external power Eight CMOS clock outputs supply filtering Easy-to-use programming software Low power: 45 mA (core) Configurable triple A spread spectrum: Core VDD: 1.8, 2.5, or 3.3 V any clock, any frequency, and with any Separate VDDO for each bank of Ordering Information: spread amount outputs: 1.8, 2.5, or 3.3 V See page 22. Programmable output phase adjustment Small size: 4x4 mm 24-QFN with <20 ps error Industrial temperature range: Interrupt pin indicates LOS or LOL 40 to +85 C Pin Assignments Applications Printers Storage area networks Top View Audio/video Switches/routers DSLAM Servers 24 23 22 21 20 19 Description XA 1 18 CLK2 2 The Si5356 is a highly flexible, I C programmable clock generator capable of 17 XB 2 CLK3 synthesizing four completely non-integer related frequencies up to 200 MHz. The 16 I2C LSB 3 VDDOB device has four banks of outputs with each bank supporting two CMOS outputs at GNDGND CLKIN 4 15 VDDOC the same frequency. Using Skyworks Solutions patented MultiSynth fractional 14 divider technology, all outputs are guaranteed to have 0 ppm frequency synthesis SSC DIS 5 CLK4 error regardless of configuration, enabling the replacement of multiple clock ICs OEB 6 13 CLK5 718 9 10 112 and crystal oscillators with a single device. Each output bank is independently configurable to support 1.8, 2.5, or 3.3 V. The device is programmable via an 2 I C/SMBus-compatible serial interface and supports operation from a 1.8, 2.5, or 3.3 V core supply. Functional Block Diagram Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.4 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 2, 2021 VDD VDD INTR GND CLK7 CLK0 CLK6 CLK1 VDDOD VDDOA SCL SDASi5356A TABLE OF CONTENTS Section Page 1. Electrical Specifications .3 2. Typical Application Circuits 7 3. Functional Description 8 3.1. Overview .8 3.2. Input Configuration .9 3.3. Breakthrough MultiSynth Technology .9 3.4. Frequency Configuration 10 3.5. Configuring the Si5356 .10 3.6. Output Phase Adjustment .12 3.7. CMOS Output Drivers 12 3.8. Jitter Performance .12 3.9. Status Indicators 13 3.10. I2C Interface 14 3.11. Spread Spectrum 15 3.12. Power Supply Considerations .17 4. Si5356 Registers .18 5. Pin Descriptions .19 6. Ordering Guide 22 6.1. Evaluation Board 22 7. Package Outline: 24-Lead QFN .23 8. Recommended PCB Land Pattern 24 9. Top Marking 25 9.1. Si5356A Top Marking 25 9.2. Top Marking Explanation .25 10. Device Errata 26 Document Change List .27 Contact Information 28 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.4 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 2, 2021