SX3M18.432A10F20TNN 18.432MHz CMOS 4-SMD Crystal Oscillator

SX3M18.432A10F20TNN is a high-performance 18.432MHz CMOS Crystal Oscillator manufactured by SCTF, a reputable name in passive electronic components. This surface-mount device is engineered to provide a precise and stable clock signal, which is fundamental for the synchronized operation of digital circuits. As a critical timing component, it plays an indispensable role in a wide array of electronic systems, ensuring reliable data processing and communication. Its compact 4-SMD package makes it suitable for modern, miniaturized electronic designs where space is at a premium, offering an efficient solution for generating accurate frequencies.

Key Specifications

The Output type of this oscillator is CMOS, which stands for Complementary Metal-Oxide-Semiconductor. CMOS outputs are widely favored in digital electronics due to their low power consumption, high noise immunity, and compatibility with most digital logic families, making this oscillator versatile for various applications.

Part of the 3C Series, this component signifies its belonging to a specific product line from SCTF, often indicating a family of devices sharing common characteristics in terms of performance, package, or application focus. The series designation helps engineers identify compatible or related parts.

Operating at a precise Frequency of 18.432MHz, this specific frequency is commonly used in various digital communication systems, microcontrollers, and data converters, providing a stable clock reference for their operations.

With a compact Size (mm) of 3.2×2.5×0.95, this miniature footprint is ideal for space-constrained applications, enabling higher component density on printed circuit boards and contributing to the overall miniaturization of electronic devices.

The Input Current range of 10-40mA indicates the typical current consumption required for the oscillator to operate. This range is important for power budget calculations, especially in battery-powered or low-power applications, ensuring efficient energy usage.

Its Mounting Type is Surface Mount, or SMD (Surface Mount Device). This modern mounting technology allows for automated assembly, higher component density, and improved manufacturing efficiency compared to through-hole components, which is crucial for high-volume production.

As a Crystal Oscillator, this component utilizes the piezoelectric effect of a quartz crystal to generate a stable oscillating frequency. Crystal oscillators are renowned for their superior frequency stability and accuracy compared to RC or LC oscillators, making them essential for precise timing applications.

The Package / Case is a 4-SMD, meaning it comes in a surface-mount package with four pins. This standard package facilitates easy integration into automated assembly processes and provides a robust connection to the PCB.

It supports multiple Supply Voltage options: 1.8V, 2.5V, 3.3V. This multi-voltage compatibility offers significant design flexibility, allowing the oscillator to be integrated into systems operating at different logic levels and power rails, reducing the need for voltage translation circuits.

The broader Frequency Range of 1 – 160MHz for the series indicates the versatility of this oscillator family, suggesting that while this specific part is 18.432MHz, similar components in the series can cover a wide spectrum of frequencies to meet diverse application needs.

A Frequency Stability of ±50ppm (parts per million) indicates how much the output frequency can deviate from its nominal value over specified conditions, such as temperature and aging. A lower ppm value signifies higher stability, which is critical for applications requiring precise timing.

The Frequency Tolerance of ±20ppm specifies the maximum allowable deviation of the output frequency from its nominal value at a specific reference temperature, typically 25°C. This parameter is crucial for initial accuracy requirements in various systems.

It boasts a wide Operating Temperature range, supporting -40℃ to +85℃, -40℃ to +105℃, and -40℃ to +125℃. This extensive temperature capability ensures reliable performance in harsh industrial, automotive, and high-temperature environments, making it suitable for demanding applications.

Features and Benefits

• High Precision and Stability: With a frequency tolerance of ±20ppm and stability of ±50ppm, the SX3M18.432A10F20TNN delivers highly accurate and consistent timing signals, essential for critical digital operations and communication protocols.
• CMOS Output for Broad Compatibility: The CMOS output ensures seamless integration with a wide range of digital logic families, offering low power consumption and robust noise immunity, simplifying circuit design and enhancing system reliability.
• Wide Operating Voltage Range: Supporting 1.8V, 2.5V, and 3.3V supply voltages, this oscillator provides exceptional design flexibility, allowing it to be used in various power-constrained or multi-voltage systems without additional voltage regulation.
• Compact Surface Mount Package: The 4-SMD package with dimensions of 3.2×2.5×0.95mm facilitates miniaturization of electronic devices, enabling higher component density on PCBs and supporting automated assembly processes for cost-effective manufacturing.
• Extended Temperature Operation: Capable of operating across a broad temperature range from -40°C up to +125°C, this component is suitable for demanding industrial, automotive, and outdoor applications where extreme temperatures are common.

Typical Applications

• Microcontroller and Microprocessor Clocking: The precise 18.432MHz frequency is ideal for providing the fundamental clock signal to microcontrollers and microprocessors, ensuring synchronized execution of instructions and stable system operation in embedded systems, IoT devices, and consumer electronics.
• Data Communication Systems: This oscillator is crucial in various data communication protocols such as UART, SPI, and I2C, providing the necessary timing for accurate data transmission and reception in networking equipment, modems, and industrial control systems.
• Wireless Modules and RF Applications: In wireless communication modules (e.g., Bluetooth, Wi-Fi, Zigbee), the stable frequency output is vital for baseband processing, frequency synthesis, and ensuring reliable data transfer and signal integrity.
• Industrial Control and Automation: Its robust design and wide operating temperature range make it suitable for industrial PLCs, motor control units, and sensor interfaces, where precise timing is essential for real-time control and reliable operation in harsh environments.
• Automotive Electronics: Given its extended temperature capabilities, the SX3M18.432A10F20TNN can be utilized in automotive infotainment systems, engine control units (ECUs), and advanced driver-assistance systems (ADAS) where reliability under extreme conditions is paramount.

The SX3M18.432A10F20TNN 18.432MHz CMOS Crystal Oscillator from SCTF is a reliable and versatile component for a multitude of electronic designs. Its combination of precision, compact size, and robust performance makes it an excellent choice for engineers seeking high-quality timing solutions. This component is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your projects.

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