EmbeddedRelated.com
    Parts    SIT5356AI-FQ-33E0-19.200000
SIT5356AI-FQ-33E0-19.200000

SIT5356AI-FQ-33E0-19.200000

SiTime
19.2 MHz TCXO LVCMOS Oscillator 3.3V Enable/Disable 10-SMD, No Lead
Active
Datasheet Digi-Key Compare Prices

Overview

The SIT5356AI-FQ-33E0-19.200000 is a high-precision 19.2 MHz MEMS-based Temperature Compensated Crystal Oscillator (TCXO) from SiTime's Elite Platform. It provides exceptional stability of +/-100ppb across a wide industrial temperature range of -40 to 85 degrees Celsius, making it a robust alternative to traditional quartz TCXOs. This device operates at 3.3V and features an LVCMOS output with an enable/disable function for power management.

Why Choose This Part

This MEMS oscillator offers superior reliability over quartz, featuring high resistance to airflow, thermal shock, and mechanical vibration. Its +/-100ppb stability ensures minimal frequency drift in harsh industrial environments, while the 3.2mm x 5.0mm footprint allows for compact PCB layouts without sacrificing performance.

Applications

Small Cells and Microcells
Provides the high-stability clocking required for synchronization in wireless infrastructure and telecommunications hardware.
Industrial Networking
Ensures reliable packet timing in IEEE 1588 PTP and Synchronous Ethernet applications under high thermal vibration environments.
Precision GNSS Receivers
Serves as a stable reference clock for high-accuracy positioning systems that require fast cold-start times.
Test and Measurement
Used in handheld instrumentation where space is limited but frequency accuracy is critical for signal analysis.

Key Specifications

Type TCXO
Output LVCMOS
Function Enable/Disable
Frequency 19.2 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

When integrating this TCXO, ensure the 3.3V supply is decoupled with a 0.1uF ceramic capacitor placed as close to the VDD pin as possible. The LVCMOS output should be routed with controlled impedance traces to maintain signal integrity at 19.2 MHz. For evaluation, use the SiTime SiT6722 evaluation board designed for the Elite Platform's 10-pin CQFN footprint.