SI5380A-D08236-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5380A-D08236-GMR is a high-performance, integer-based jitter attenuator and clock multiplier from Skyworks Solutions. It utilizes 4th generation DSPLL technology to combine frequency synthesis and jitter attenuation in a digital solution, eliminating the need for external VCXO and loop filter components. The device features four inputs and twelve outputs, supporting differential frequencies up to 1.47456 GHz and LVCMOS up to 245.76 MHz. It delivers ultra-low phase noise with a typical jitter of 65 fs (12 kHz to 20 MHz) and a phase noise floor of -159 dBc/Hz. Operating on a 64-QFN 9x9 mm package, it supports I2C/SPI control and includes non-volatile memory for configuration storage.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates fourth-generation DSPLL technology to provide superior immunity to external board disturbances such as power supply noise while eliminating the requirement for analog loop filters and external voltage-controlled oscillators.
• Supports JESD204B clocking requirements including DCLK and SYSREF generation, enabling flexible synchronization for high-speed data conversion applications.
• Provides hitless input switching capabilities that prevent phase transients when transitioning between frequency-locked clock sources, ensuring continuous signal integrity.

Clock Generators, PLLs, Frequency Synthesizers Applications

• JESD204B clock generation for high-speed ADC and DAC interfaces
• Wireless base station architectures including Remote Radio Units (RRU) and Remote Radio Heads (RRH)
• Small cell and picocell infrastructure requiring precise timing synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer verification. Confirm the specific ordering suffix matches the required tape and reel packaging format. Ensure compatibility with existing system configurations by validating the factory pre-programmed settings against design specifications before integration.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component for designs demanding ultra-low phase noise and high integration levels in wireless infrastructure. Evaluate the input frequency range requirements against the supported differential and LVCMOS specifications. Consider the package constraints and thermal performance within the specified operating temperature range during PCB layout planning.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5380 family of clock multipliers and jitter attenuators designed for small cell and wireless applications. It represents a highly integrated digital solution that replaces multiple discrete clock components. The device is optimized for applications requiring strict phase noise performance and flexible output configurations.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if newer revisions or alternative models from the same series meet the specific electrical and pinout requirements for the target application.