AMD Xilinx ZCU670 User Manual page 45

SI5381A 10 Independent Output Any-Frequency Clock Generator
U43
[Figure 2, callout 10]
• Clock generator: Skyworks Solutions, Inc. (SiLabs) SI5381A-E13960-GMR
• I2C programmable
• Jitter: <72 fs RMS typical
• Differential and single-ended factory default outputs
The SI5381A data sheet addendum for the Skyworks Solutions, Inc. (SiLabs) SI5381A-E13960-
GMR documents the pre-programmed output frequencies:
• Inputs:
XAXB: 54.000000 MHz
○
Crystal mode
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IN0: SMA Input J146
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IN1: 8A34001_Q7_OUT
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IN2: SI5381_CLK2_IN
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FB_IN: SI5381_FEEDBACK (U43.OUT9)
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• Outputs:
OUT0A: 122.88 MHz
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Enabled, Diff_920mV
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OUT0: Unused
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OUT1: Unused
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OUT2: N/C
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OUT3: 122.88 MHz
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Enabled, Diff_920 mV
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OUT4: Unused
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OUT5: 245.76 MHz
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Enabled, LVDS Pulled to 1.2V
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OUT6: 26 MHz
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Enabled, LVDS
○
UG1532 (v1.0) March 30, 2022
ZCU670 Board User Guide
Chapter 3: Board Component Descriptions
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