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LFTCXO085777

LFTCXO085777

IQD Frequency Products
20 MHz TCXO HCMOS Oscillator 3.3V 4-SMD, No Lead
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Overview

The LFTCXO085777 is a high-precision Temperature Compensated Crystal Oscillator (TCXO) from IQD Frequency Products, providing a stable 20 MHz HCMOS output. It features a tight frequency stability of +/-280ppb across a wide operating temperature range from -40C up to 105C, making it suitable for demanding timing applications. This 3.3V oscillator is housed in a standard 7.0mm x 5.0mm 4-SMD package.

Why Choose This Part

The primary advantage is the exceptional +/-280ppb stability, which significantly reduces frequency drift compared to standard crystal oscillators. The extended 105C maximum operating temperature allows for deployment in harsh industrial environments without specialized cooling. Its HCMOS output ensures compatibility with most modern microcontrollers and FPGAs.

Applications

GPS and GNSS Receivers
Provides the stable reference clock necessary for rapid satellite acquisition and accurate positioning in navigation systems.
Industrial Networking
Ensures reliable synchronization in Ethernet switches and industrial communication gateways operating in high-temperature environments.
Wireless Infrastructure
Acts as a primary frequency source for base stations and small cells where thermal stability is critical for signal integrity.
Smart Metering
Delivers a consistent timebase for long-term data logging and RF transmission in utility meters exposed to outdoor conditions.

Key Specifications

Type TCXO
Output HCMOS
Frequency 20 MHz
Mounting Type Surface Mount
Base Resonator Crystal
Package / Case 4-SMD, No Lead
Size / Dimension 0.276" L x 0.197" W (7.00mm x 5.00mm)
Voltage - Supply 3.3V
Frequency Stability +/-280ppb
Height - Seated (Max) 0.094" (2.40mm)
Operating Temperature -40degC ~ 105degC
Current - Supply (Max) 10mA

Getting Started

To integrate this TCXO, provide a clean 3.3V supply with a 10nF to 100nF decoupling capacitor placed close to the VDD pin. Ensure the HCMOS output is routed with a short, controlled-impedance trace to minimize EMI and signal reflection. No external load capacitors are required as the timing circuitry is self-contained within the 4-SMD package.

Categories

Clocks & Timing > Crystal Oscillators