SI5381A 10 Independent Output Any-Frequency Clock Generator
U43
, 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
○
IN0: SMA Input J146
○
IN1: 8A34001_Q7_OUT
○
IN2: SI5381_CLK2_IN
○
FB_IN: SI5381_FEEDBACK (U43.OUT9)
• Outputs:
○
OUT0A: 122.88 MHz
○
Enabled, Diff_920mV
○
OUT0: Unused
○
OUT1: Unused
○
OUT2: N/C
○
OUT3: 122.88 MHz
○
Enabled, Diff_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
ZCU670 Board User Guide
45