SI5380 Datasheet, PDF (2/50 Pages) Silicon Laboratories – Ultra-Low Phase Noise, 12-output JESD204B Clock Generator

1. Feature List
The Si5380 highlighted features are listed below.
• Digital frequency synthesis eliminates external VCXO and an-
alog loop filter components
• Supports JESD204B clocking: DCLK and SYSREF
• Input frequency range:
• Differential: 10 MHz – 750 MHz
• LVCMOS: 10 MHz – 250 MHz
• Output frequency range:
• Differential: up to 1.47456 GHz
• LVCMOS: up to 250 MHz
• Excellent jitter performance:
• 70 fs typ (12 kHz – 20 MHz)
• Phase noise floor: –159 dBc/Hz
• Spur performance: –103 dBc max (relative to a 122.88 MHz
carrier)
• Configurable outputs:
• Signal swing: 200 to 3200 mVpp
• Compatible with LVDS, LVPECL
• LVCMOS 3.3, 2.5, or 1.8 V
• Output-output skew: 20 ps (typical, same N-divider)
• Adjustable output-output delay: 68 ps/step, ±128 steps
Si5380 Data Sheet
Feature List
• Optional Zero Delay mode
• Independent output supply pins: 3.3, 2.5, or 1.8 V
• Core voltage:
• VDD = 1.8 V ±5%
• VDDA = 3.3 V ±5%
• Automatic free-run, lock, and holdover modes
• Digitally selectable loop bandwidth: 0.1 Hz to 4 kHz
• Hitless input clock switching
• Status monitoring (LOS, OOF, LOL)
• Serial interface: I2C or SPI In-circuit programmable with non-
volatile OTP memory
• _ClockBuilder^TM _{Pro software tool simplifies device configura-}
tion
• 4 input, 12 output, 64QFN
• Temperature range: –40 to +85 °C
• Pb-free, RoHS-6 compliant
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