Si5338 I2C-Programmable Any-Frequency, Any-Output

1 Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021Si5338I2C-PROGRAMMABLE ANY-FREQUENCY, Any-Output QUAD CLOCK GENERATORF eaturesApplicationsDescriptionThe Si5338 is a high-performance, low-jitter clock generator capable of synthesizingany frequency on each of the device's four output drivers. This timing IC is capable ofreplacing up to four different frequency crystal oscillators or operating as a frequencytranslator.

2 Using its patented MultiSynth technology, the Si5338 allows generation offour independent clocks with 0 ppm precision. Each output clock is independently con-figurable to support various signal formats and supply voltages. The Si5338 provideslow-jitter frequency synthesis in a space-saving 4 x 4 mm QFN package. The device isprogrammable via an I2C/SMBus-compatible serial interface and supports operationfrom a , , or V core supply. I2C device programming is made easy with ClockBuilder Pro, available PCIe clock jitter is quick and easy with the Skyworks Solutions PCIe ClockJitter Tool.

3 Download it for free at Low power MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant Highly-configurable output drivers with up to four differential outputs, eight single-ended clock outputs, or a combination of both Low phase jitter of ps RMS typ High precision synthesis allows true zero ppm frequency accuracy on all outputs Flexible input reference: External crystal: 8 to 30 MHz CMOS input: 5 to 200 MHz SSTL/HSTL input: 5 to 350 MHz Differential input: 5 to 710 MHz Independently configurable outputs support any frequency or format: LVPECL/LVDS: to 710 MHz HCSL: to 250 MHz CMOS: to 200 MHz SSTL/HSTL: to 350 MHz Independent output voltage per driver: , , , or V Single supply core with excellent PSRR: , , V Independent frequency increment/decrement feature enables glitchless frequency adjustments in 1 ppm steps Independent phase adjustment on each of the output drivers with an accuracy of <20 ps steps Highly configurable spread spectrum (SSC) on any output.

4 Any frequency from 5 to 350 MHz Any spread from to Any modulation rate from 33 to 63 kHz External feedback mode allows zero-delay mode Loss of lock and loss of signal alarms I2C/SMBus compatible interface easy to use programming software Small size: 4 x 4 mm, 24-QFN Low power: 45 mA core supply typ Wide temperature range: 40 to +85 C Ethernet switch/router PCIe Gen1/2/3/4 Broadcast video/audio timing Processor and FPGA clocking Any-frequency clock conversion MSAN/DSLAM/PON Fibre Channel, SAN Telecom line cards 1 GbE and 10 GbEOrdering Information:See page AssignmentsIN1 CLK2 BCLK2 AVDDO2 VDDO1 CLK1 BCLK1 AVDDVDDSCLCLK3 ACLK3 BINTRSDAVDDO0 CLK0 BCLK0 ARSVD_GNDVDDO3 GNDGNDPad5432161310987IN2IN3IN4IN5IN6 Top View11121514161718192021222324Si53382 Skyworks Solutions, Inc.

5 Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021 Functional Block DiagramPhase Frequency DetectorLoop FilterVCOCLK0A P2 VDDO1 VDDO2 VDDO3 VDDO0 MultiSynth M0I2C_LSB/PDEC/FDECOEB/PINC/FINCCLK0 BCLK1 ACLK1 BCLK2 ACLK2 BCLK3 ACLK3B P1IN3IN2IN1 R1 MultiSynth M1 MultiSynth M2 MultiSynth M3IN6IN4IN5 OscMultiSynth NControlNVM (OTP) R0 R2 R3 Synthesis Stage 1 (PLL)Synthesis Stage 2 Output StageP1 DIV_INControl & MemorySCLSDAINTRVDD reffbRAMP2 DIV_INnoclknoclkSi5338 Skyworks Solutions, Inc.

6 Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021 TABLE OF CONTENTSS ectionPage1. Electrical Specifications .. 42. Typical Application Circuits .. 173. Functional Description .. Overview .. Input Stage .. Synthesis Stages .. Output Stage .. Configuring the Si5338 .. Status Indicators .. Output Enable .. Power Consumption .. Reset Options .. Features of the Si5338 .. 274. Applications of the Si5338 .

7 Free-Running Clock Generator .. Synchronous Frequency Translation .. Configurable Buffer and Level Translator .. 305. I2C Interface .. 316. Si5338 Registers .. 327. Pin Descriptions .. 338. Device Pinout by Part Number .. 379. Package Outline: 24-Lead QFN .. 3910. Recommended PCB Land Pattern .. 4011. Top Marking .. Si5338 Top Marking .. Top Marking Explanation .. 4112. Ordering Information .. 4213. Device Errata .. 43 Document Change List .. 44Si53384 Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 20211.

8 Electrical SpecificationsTable 1. Recommended Operating Conditions(VDD= V 5% to +10%, V 10%, or V 10%, TA= 40 to 85 C)ParameterSymbolTest ConditionMinTypMaxUnitAmbient TemperatureTA 402585 CCore Supply Buffer Supply :All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values apply at nominal supply voltages and an operating temperature of 25 C unless otherwise 2. Absolute Maximum Ratings1 ParameterSymbolTest ConditionValueUnitDC Supply VoltageVDD to Temperature RangeTSTG 55 to 150 CESD ToleranceHBM(100 pF, k ) ToleranceCDM550 VESD ToleranceMM175 VLatch-up ToleranceJESD78 CompliantJunction TemperatureTJ150 CPeak soldering Reflow Temperature2260 device damage may occur if the absolute maximum ratings are exceeded.

9 Functional operation should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device Refer to JEDEC J-STD-020 standard for more Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021 Table 3. DC Characteristics(VDD= V 5% to +10%, V 10%, or V 10%, TA= 40 to 85 C)ParameterSymbolTest ConditionMinTypMaxUnitCore Supply CurrentIDD100 MHz on all outputs, 25 MHz refclk 4560mACore Supply Current(Buffer Mode)IDDB50 MHz refclk 12 mAOutput Buffer Supply CurrentIDDOxLVPECL, 710 MHz 30mALVDS, 710 MHz 8mAHCSL, 250 MHz2pF load 20mACML, 350 MHz 12 mASSTL, 350 MHz 19mACMOS, 50 MHz15 pF load1 6 9mACMOS, 200 MHz1, V VDD0 1318mACMOS, 200 MHz1, V 1014mACMOS, 200 MHz1, V 710mAHSTL, 350 MHz 19 CMOS driver Measured into a 5 50 trace with 2 pF 4.

10 Thermal CharacteristicsParameterSymbolTest ConditionValueUnitThermal Resistance Junction to Ambient JAStill Air37 C/WThermal Resistance Junction to Case JCStill Air10 C/WSi53386 Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021 Table 5. Performance Characteristics(VDD= V 5% to +10%, V 10%, or V 10%, TA= 40 to 85 C)ParameterSymbolTest ConditionMinTypMaxUnitPLL Acquisition TimetACQ 25 msPLL Tracking RangefTRACK500020000 ppmPLL Loop BandwidthfBW MHzMultiSynth Frequency Synthesis ResolutionfRESO utput frequency < Fvco/8001ppbCLKIN Loss of Signal Detect TimetLOS 5 sCLKIN Loss of Signal Release sPLL Loss of Lock Detect TimetLOL 510 msPOR to Output Clock Valid(Pre-programmed Devices)tRDY 2 msInput-to-Output Propagation DelaytPROPB uffer Mode(PLL Bypass)