Parts
SIT5356AI-FQ-33E0-38.400000
Overview
The SIT5356AI is a high-precision MEMS Temperature Compensated Oscillator (TCXO) designed for Stratum 3+ grade stability. It operates at 38.4 MHz with a 3.3V supply, offering an exceptionally tight frequency stability of +/-100ppb over a wide temperature range of -40C to 85C.
Why Choose This Part
This MEMS-based device provides significantly better resistance to shock and vibration compared to traditional quartz TCXOs. It achieves Stratum 3+ performance in a compact 5.0mm x 3.2mm package, making it ideal for space-constrained, high-reliability designs.
Applications
Precision Timing for 5G/LTE
Provides the stable reference clock required for small cells and base stations to maintain network synchronization.
GNSS Positioning
Enables faster time-to-first-fix and improved accuracy for GPS and Galileo receivers by reducing frequency drift.
Industrial Ethernet
Ensures reliable packet timing in IEEE 1588 PTP and Synchronous Ethernet (SyncE) industrial communication hardware.
Smart Grid Infrastructure
Serves as a reliable clock source for power line monitoring and phased measurement units that require long-term stability.
Key Specifications
Type
TCXO
Output
LVCMOS
Function
Enable/Disable
Frequency
38.4 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
Integrate this device by providing a stable 3.3V supply and a 15pF load on the LVCMOS output. Designers should follow SiTime layout guidelines for thermal isolation to maintain the specified +/-100ppb stability across the full operating temperature range.
Also Consider
SIT5356AI 10MHz
SiTime
- Alternative frequency version for systems requiring a standard 10MHz reference clock with the same stability.
