Si5338 2 I C-PROGRAMMABLE ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR Features Low power MultiSynth technology Single supply core with excellent enables independent, any-frequency PSRR: 1.8, 2.5, 3.3 V synthesis on four differential output Independent frequency drivers increment/decrement feature PCIe Gen 1/2/3/4 Common Clock and enables glitchless frequency Gen 3 SRNS compliant adjustments in 1 ppm steps Highly-configurable output drivers with Independent phase adjustment on up to four differential outputs, eight each of the output drivers with an single-ended clock outputs, or a accuracy of <20 ps steps Ordering Information: combination of both Highly configurable spread Low phase jitter of 0.7 ps RMS typ spectrum (SSC) on any output: See page 42. High precision synthesis allows true Any frequency from 5 to 350 MHz Any spread from 0.5 to 5.0% zero ppm frequency accuracy on all Any modulation rate from 33 to outputs Pin Assignments 63 kHz Flexible input reference: External feedback mode allows External crystal: 8 to 30 MHz zero-delay mode CMOS input: 5 to 200 MHz Top View Loss of lock and loss of signal SSTL/HSTL input: 5 to 350 MHz alarms Differential input: 5 to 710 MHz 2 Independently configurable outputs I C/SMBus compatible interface support any frequency or format: 24 23 22 21 20 19 Easy to use programming software LVPECL/LVDS: 0.16 to 710 MHz IN1 1 18 CLK1A Small size: 4 x 4 mm, 24-QFN HCSL: 0.16 to 250 MHz Low power: 45 mA core supply typ 2 17 IN2 CLK1B CMOS: 0.16 to 200 MHz Wide temperature range: 40 to SSTL/HSTL: 0.16 to 350 MHz 3 16 IN3 VDDO1 GND +85 C GND Independent output voltage per driver: Pad IN4 4 15 VDDO2 1.5, 1.8, 2.5, or 3.3 V 5 14 IN5 CLK2A Applications 6 13 IN6 CLK2B 7 8 9 10 11 12 Ethernet switch/router Any-frequency clock conversion PCIe Gen1/2/3/4 MSAN/DSLAM/PON Broadcast video/audio timing Fibre Channel, SAN Processor and FPGA clocking Telecom line cards 1 GbE and 10 GbE Description The Si5338 is a high-performance, low-jitter clock generator capable of synthesizing any frequency on each of the device s four output drivers. This timing IC is capable of replacing up to four different frequency crystal oscillators or operating as a frequency translator. Using its patented MultiSynth technology, the Si5338 allows generation of four independent clocks with 0 ppm precision. Each output clock is independently con- figurable to support various signal formats and supply voltages. The Si5338 provides low-jitter frequency synthesis in a space-saving 4 x 4 mm QFN package. The device is 2 programmable via an I C/SMBus-compatible serial interface and supports operation from a 1.8, 2.5, or 3.3 V core supply. 2 I C device programming is made easy with ClockBuilder Pro, available at Si5338 Functional Block Diagram VDD Synthesis Output Synthesis Osc noclk Stage Stage 1 Stage 2 VDDO0 (PLL) P1DIV IN IN1 MultiSynth CLK0A ref R0 IN2 P1 M0 CLK0B IN3 VDDO1 Loop VCO Phase Filter MultiSynth CLK1A Frequency R1 M1 P2DIV IN Detector CLK1B fb IN4 P2 VDDO2 IN5 noclk IN6 MultiSynth CLK2A R2 M2 CLK2B MultiSynth Control & Memory N VDDO3 OEB/PINC/FINC CLK3A I2C LSB/PDEC/FDEC MultiSynth R3 M3 NVM Control RAM CLK3B SCL (OTP) SDA INTR 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.6 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 29, 2021