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SiT5356AI-FQ-33E0-20.000000

SiT5356AI-FQ-33E0-20.000000

MPN: SIT5356AI-FQ-33E0-20.000000
SiTime
20 MHz TCXO LVCMOS Oscillator 3.3V Enable/Disable 10-SMD, No Lead
Active

Overview

The SiT5356 is a high-performance 20 MHz MEMS-based TCXO offering exceptional stability of +/-100ppb over an industrial temperature range. Utilizing SiTime Elite Platform technology, this oscillator is designed to replace traditional quartz-based TCXOs in environments prone to shock, vibration, and thermal transients.

Why Choose This Part

The MEMS architecture provides superior resistance to mechanical shock and vibration compared to quartz crystals while maintaining a tight +/-0.1 ppm stability. Its 3.3V LVCMOS output and 3.2 x 5.0 mm package allow for straightforward integration into existing digital systems without specialized board design requirements.

Applications

Precision Timing in Networking
Ideal for IEEE 1588 synchronization and Synchronous Ethernet (SyncE) in small cell and carrier-grade networking equipment.
GNSS Positioning
Provides the high-frequency stability required for faster cold starts and improved positioning accuracy in GPS/GNSS receivers.
Industrial Communication
Ensures reliable clocking for fieldbus gateways and wireless infrastructure operating in harsh vibration environments.

Key Specifications

Type TCXO
Output LVCMOS
Function Enable/Disable
Frequency 20 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
Supplier Device Package 10-CQFN (5x3.2)

Getting Started

Implementation requires a 3.3V supply and a bypass capacitor placed as close as possible to the VDD pin. When designing the PCB, ensure short trace lengths for the 20 MHz LVCMOS output to minimize EMI and signal degradation. No external load capacitors are required as the device is fully integrated.