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SIT5356AI-FQ-33E0-25.000000

SIT5356AI-FQ-33E0-25.000000

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

The SIT5356AI-FQ-33E0-25.000000 is a high-precision 25 MHz MEMS-based Temperature Compensated Oscillator (TCXO) from SiTime's Elite Platform. It provides exceptional frequency stability of +/-100ppb across an industrial temperature range of -40 to 85 degrees Celsius. This 3.3V LVCMOS device is designed to replace traditional quartz TCXOs in environments prone to high vibration and thermal shock.

Why Choose This Part

This MEMS oscillator offers 20 times better vibration immunity and 10 times better frequency-over-temperature slope (dF/dT) than quartz-based alternatives. It eliminates the need for external LDOs or board-level shielding due to its integrated power supply noise rejection and robust resistance to electromagnetic interference.

Applications

Precision Timing for Networking
Ideal for IEEE 1588 synchronization, SONET/SDH, and synchronous Ethernet where stable clocking is critical for packet timing.
GNSS Positioning Systems
Enhances signal acquisition and tracking performance in GPS/GNSS modules by providing a stable reference frequency.
Industrial Communication Hubs
Reliable clocking for gateways and wireless base stations operating in harsh environments with significant temperature fluctuations.
Microwave Backhaul
Supports high-speed data links by maintaining tight frequency tolerances under mechanical vibration and airflow-induced thermal transients.

Key Specifications

Type TCXO
Output LVCMOS
Function Enable/Disable
Frequency 25 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 the 10-SMD component using standard SMT reflow processes, ensuring the 0.1uF bypass capacitor is placed as close as possible to the VDD pin. Evaluation can be performed using SiTime's SiT6722EB evaluation board or by requesting a custom programmed sample through their Time Machine II programmer.

Categories

Clocks & Timing > Crystal Oscillators Aerospace & Defense > GPS & Navigation