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SIT5356AI-FQ-33E0-10.000000

SIT5356AI-FQ-33E0-10.000000

SiTime
10 MHz TCXO LVCMOS Oscillator 3.3V Enable/Disable 10-SMD, No Lead
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Overview

The SIT5356AI is a 10 MHz MEMS-based Temperature Compensated Crystal Oscillator (TCXO) designed for high-stability timing requirements in industrial environments. It delivers Stratum 3+ grade performance with a frequency stability of +/-100ppb across an extended temperature range of -40 to 105 degrees Celsius. This LVCMOS oscillator operates on a 3.3V supply and is housed in a compact 10-pin CQFN package.

Why Choose This Part

This MEMS oscillator offers superior reliability compared to quartz-based TCXOs, featuring excellent immunity to mechanical shock and vibration. Its Stratum 3+ stability ensures minimal clock drift, while the wide industrial temperature support up to 105 degrees Celsius allows for deployment in fanless enclosures or harsh outdoor equipment.

Applications

Precision Timing Synchronizers
Used as a reference clock for IEEE 1588 PTP and SyncE synchronization in networking hardware.
Industrial Communication Gateways
Provides a stable timing source for wireless backhaul and wireline infrastructure requiring Stratum 3 level stability.
GNSS Correction Systems
Acts as a reliable local oscillator to improve time-to-first-fix and location accuracy in rugged GNSS receivers.

Key Specifications

Type TCXO
Output LVCMOS
Function Enable/Disable
Frequency 10 MHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 10-SMD, No Lead
Size / Dimension 0.197" L x 0.126" W (5.00mm x 3.20mm)
Voltage - Supply 3.3V
Frequency Stability +/-100ppb
Height - Seated (Max) 0.042" (1.06mm)
Operating Temperature -40degC ~ 85degC
Current - Supply (Max) 40.5mA (Typ)
Supplier Device Package 10-CQFN (5x3.2)

Getting Started

Integration requires a 3.3V power supply and a 0.1uF bypass capacitor placed near the VDD pin. The output enable pin can be used to control the LVCMOS signal for power-sensitive applications or system troubleshooting. Developers should follow standard high-speed PCB layout practices to maintain signal integrity for the 10 MHz square wave output.

Categories

Clocks & Timing > Crystal Oscillators Industrial & Automation > Industrial Communication