Si5391 Datasheet | Skyworks Solutions

Si5391 Data Sheet Ultra Low-Jitter, 12-Output, Any-Frequency, Any-Output Clock Generator The any-frequency, any-output Si5391 clock generators bine a wide-band PLL with proprietary Multi Synth™ fractional synthesizer technology to offer a versatile and high performance clock generator platform. This highly flexible architecture is capable of synthesizing a wide range of integer and non-integer related frequencies up to 1 GHz on 12 differential clock outputs while delivering sub-100 fs rms phase jitter performance optimized for 100G/200G/400G applications. Each of the clock outputs can be assigned its own format and output voltage enabling the Si5391 to replace multiple clock ICs and oscillators with a single device making it a true "clock tree on a chip." The Si5391 can be quickly and easily configured using Clock Builder Pro software. Custom part numbers are automatically assigned using Clock Builder™ Pro for fast, free, and easy factory pre-programming or the Si5391 can be programmed via I2C and SPI serial interfaces. Applications: - 100/200/400G switches - 56G/112G PAM4 Ser Des reference clocks - Clock tree generation replacing XOs, buffers, signal format translators - Clocking for FPGAs, processors, memory - Ethernet switches/routers - OTN framers/mappers/processors KEY Features - Generates any bination of output frequencies from any input frequency - Ultra-low jitter performance - 69fs RMS (Precision Calibration) - 75fs RMS (integer mode) - 115fs RMS (fractional mode) - Input frequency range: - External crystal: 25 to 54 MHz - Differential clock: 10 to 750 MHz - LVCMOS clock: 10 to 250 MHz - Output frequency range: - Differential: 100 Hz to 1028 MHz - LVCMOS: 100 Hz to 250 MHz - Highly configurable outputs patible with LVDS, LVPECL, LVCMOS, CML, and HCSL with programmable signal amplitude - Si5391: 4 input, 12 output, 64-QFN 9x9mm 25-54 MHz XTAL IN0 ÷INT IN1...