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SiT9120AI-2C2-33E125.000000

SiT9120AI-2C2-33E125.000000

MPN: SIT9120AI-2C2-33E125.000000
SiTime
125 MHz XO (Standard) LVDS Oscillator 3.3V Enable/Disable 6-SMD, No Lead
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Overview

The SiT9120AI-2C2-33E125.000000 is a high-performance 125 MHz differential oscillator utilizing SiTime's silicon MEMS technology to provide superior reliability compared to traditional quartz oscillators. It features an LVDS output for low electromagnetic interference and high-speed data integrity, operating from a 3.3V supply with a frequency stability of +/-25ppm. This component is designed for industrial-grade applications, maintaining performance across a wide temperature range of -40 to +85 degrees Celsius.

Why Choose This Part

The MEMS-based resonator provides 20 times the reliability of quartz and significantly better resistance to mechanical shock and vibration. Its LVDS output ensures high-speed signal integrity with minimal power consumption and EMI, while the +/-25ppm stability ensures compliance with strict networking standards.

Applications

10GbE / 40GbE / 100GbE Networking
Provides the low-jitter 125 MHz clock reference required for high-speed Ethernet physical layer transceivers.
FPGA Reference Clocking
Serves as a stable, differential source for FPGA multi-gigabit transceivers (MGTs) and high-speed SERDES interfaces.
PCI Express Timing
Utilized in PCIe-based storage and computing systems where differential signal integrity and low phase noise are critical.
Industrial Computing
Reliable timing source for ruggedized embedded systems requiring shock and vibration resistance inherent to MEMS technology.

Key Specifications

Type XO (Standard)
Output LVDS
Function Enable/Disable
Frequency 125 MHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 6-SMD, No Lead
Size / Dimension 0.197" L x 0.126" W (5.00mm x 3.20mm)
Voltage - Supply 3.3V
Frequency Stability +/-25ppm
Height - Seated (Max) 0.031" (0.80mm)
Operating Temperature -40degC ~ 85degC
Current - Supply (Max) 55mA
Supplier Device Package 6-SMD (5x3.2)

Getting Started

To integrate this oscillator, ensure the 3.3V supply is decoupled with a 0.1uF ceramic capacitor placed near pin 6. The LVDS output requires a 100-ohm differential termination resistor at the receiver end to maintain signal integrity for the 125 MHz signal.

Also Consider

SG3225EAN 125 MHz Epson - A traditional SPXO quartz alternative if your design specifically requires a crystal-based resonator over MEMS.