AMD Xilinx ZCU670 - Page 45

SI5381A 10 Independent Output Any-Frequency Clock Generator
U43
[Figure 2, callout 10]
• Clock generator: Skyworks Soluons, Inc. (SiLabs) SI5381A-E13960-GMR
• I2C programmable
• Jier: <72 fs RMS typical
• Dierenal and single-ended factory default outputs
The SI5381A data sheet addendum for the Skyworks Soluons, Inc. (SiLabs) SI5381A-E13960-
GMR documents the pre-programmed output frequencies:
• Inputs:
○ XAXB: 54.000000 MHz
○ Crystal mode
○ IN0: SMA Input J146
○ IN1: 8A34001_Q7_OUT
○ IN2: SI5381_CLK2_IN
○ FB_IN: SI5381_FEEDBACK (U43.OUT9)
• Outputs:
○ OUT0A: 122.88 MHz
○ Enabled, Di_920mV
○ OUT0: Unused
○ OUT1: Unused
○ OUT2: N/C
○ OUT3: 122.88 MHz
○ Enabled, Di_920 mV
○ OUT4: Unused
○ OUT5: 245.76 MHz
○ Enabled, LVDS Pulled to 1.2V
○ OUT6: 26 MHz
○ Enabled, LVDS
Chapter 3: Board Component Descriptions
UG1532 (v1.0) March 30, 2022 www.xilinx.com
ZCU670 Board User Guide 45
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