SKYWORKS SI5386A-E12171-GM

The Si5386 is an ultra high performance wireless jitter attenuator with any frequency outputs for eCPRI (ethernet-based Common Public Radio Interface) applications, which demand the highest level of integration and phase noise performance. The Si5386 combines frequency synthesis and jitter attenuation in a highly integrated digital solution with a cost-effective oscillator, and without the need of any external loop filter components. The fixed frequency oscillator provides frequency stability for free-run and holdover modes. This all-digital solution provides superior performance that is highly immune to external board disturbances such as power supply noise. The Si5386 architecture is designed to deliver high-performance JESD204B DCLK and SYSREF clock pairs and flexible any-rate clocks for non-CPRI clocks such as Ethernet and system reference clocks all from a single IC.

• Flexible timing in a single IC
• Generates any combination of output frequencies from any input frequency
• Input frequency range:
  • Differential: 7.68 MHz to 750 MHz
  • LVCMOS: 7.68 MHz to 250 MHz
• Output frequency range (Integer):
  • Differential: up to 2.94912 GHz
• Output frequency range (fractional):
  • Differential: up to 735 MHz
  • LVCMOS: up to 250 MHz
• Ultra-low RMS jitter:
  • 72 fs typ (12kHz - 20MHz)
• Phase noise of 122.88MHz carrier frequency:
  • -118 dBc/Hz @ 100Hz offset
• ITU-T G.8262 compliant
• Programmable jitter attenuation bandwidth from 1 Hz to 4 kHz
• Highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL. CML outputs can be programmed to have 100 - 1600mVpp single-ended swing.
• Status monitoring (LOS, OOF, LOL)
• Pin controlled input switching
• DSPLL with special wireless calibration
• Optional zero delay mode
• Hitless input clock switching: automatic or manual
• Automatic free-run and holdover modes
• Fastlock feature
• Glitchless on the fly output frequency changes
• Core voltage:
  • VDD: 1.8V ±5%
  • VDDA: 3.3V ±5%
• Independent output clock supply pins

• Wireless Infrastructure
• eCPRI RRH (Remote Radio Head)
• BBU (Baseband Unit)
• Small Cell and μBTS
• DOCSIS
• Test and Measurement