SX7M18.432M20F30TNN 18.432MHz CMOS 4-SMD Crystal Oscillator

SX7M18.432M20F30TNN is a high-performance 18.432MHz CMOS Crystal Oscillator manufactured by SCTF, a reputable name in passive components. This surface-mount device is engineered to provide precise and stable clock signals essential for the reliable operation of various digital circuits. As a fundamental timing component, crystal oscillators like the SX7M18.432M20F30TNN are critical in microcontrollers, communication systems, and data processing units, ensuring synchronized operations and accurate data transmission. Its compact 4-SMD package makes it suitable for space-constrained applications, offering a robust solution for demanding electronic designs.

Key Specifications

This crystal oscillator boasts several key specifications that define its operational characteristics and suitability for diverse applications:

Output: CMOS – The CMOS output type signifies that the oscillator generates a digital signal compatible with Complementary Metal-Oxide-Semiconductor logic families. This is a widely used standard, ensuring easy integration with most modern digital ICs and microcontrollers without requiring additional interfacing circuitry.

Series: 7CM – The 7CM series designation indicates a specific product line from SCTF, often implying a particular set of performance characteristics, package styles, or target applications. Understanding the series helps in identifying compatible or alternative components within the manufacturer’s portfolio.

Frequency: 18.432MHz – Operating at a precise frequency of 18.432 MHz, this oscillator is ideal for applications requiring this specific clock speed, commonly found in serial communication interfaces (like UARTs) where it can be easily divided to generate standard baud rates, ensuring accurate data transfer.

Size (mm): 7.0×5.0×1.30 – With dimensions of 7.0mm by 5.0mm and a height of 1.30mm, this compact footprint is crucial for modern electronic designs where board space is at a premium. Its low profile also contributes to overall device miniaturization.

Input Current: 10-20mA – This range specifies the typical current consumption of the oscillator. A relatively low input current is beneficial for power-sensitive applications, extending battery life in portable devices and reducing power dissipation in stationary systems.

Mounting Type: Surface Mount – Surface Mount Technology (SMT) allows for automated assembly, leading to cost-effective manufacturing and higher component density on printed circuit boards (PCBs). This is the predominant mounting style for contemporary electronic components.

Component Type: Crystal Oscillator – This explicitly identifies the device as a crystal oscillator, meaning it uses the piezoelectric properties of a quartz crystal to generate a stable oscillating frequency, providing a more precise timing reference than RC oscillators.

Package / Case: 4-SMD – The 4-SMD (Surface Mount Device) package indicates that the component has four pins or pads for soldering directly onto the surface of a PCB. This standard package facilitates automated pick-and-place assembly.

Supply Voltage: 1.62 – 3.63V – This wide supply voltage range makes the oscillator versatile, compatible with both 1.8V, 2.5V, and 3.3V logic systems, which are common in low-power and mixed-voltage digital designs, offering flexibility to designers.

Frequency Range: 1 – 54MHz – While this specific part operates at 18.432MHz, the stated frequency range indicates the broader capabilities of the oscillator family or series, suggesting that other frequencies within this range are available, providing context for design choices.

Frequency Stability: ±50ppm – Frequency stability refers to how much the output frequency deviates from its nominal value over temperature, aging, and supply voltage variations. A ±50ppm stability is excellent for many digital and communication applications, ensuring reliable timing over operational conditions.

Frequency Tolerance: ±20ppm – Frequency tolerance specifies the maximum allowable deviation of the actual output frequency from the nominal frequency at a specified reference temperature (typically 25°C). A ±20ppm tolerance indicates high initial accuracy, crucial for precise timing requirements.

Operating Temperature: -40℃ to +85℃ – This broad operating temperature range signifies the oscillator’s robustness, allowing it to function reliably in harsh industrial, automotive, and outdoor environments where extreme temperatures are common.

Features and Benefits

• High Precision Timing: The 18.432MHz frequency with ±20ppm tolerance and ±50ppm stability ensures highly accurate and consistent clock signals, critical for reliable data processing and communication.
• Wide Voltage Compatibility: Operating across a 1.62V to 3.63V supply range, this oscillator seamlessly integrates into various low-power and standard digital systems, reducing design complexity.
• Compact Surface Mount Package: The 7.0×5.0×1.30mm 4-SMD footprint allows for significant space savings on PCBs, enabling miniaturization of end products and higher component density.
• Robust Environmental Performance: With an operating temperature range of -40℃ to +85℃, the SX7M18.432M20F30TNN is designed for dependable operation in challenging industrial and commercial environments.
• CMOS Output for Easy Integration: The standard CMOS output ensures direct compatibility with most digital logic families, simplifying circuit design and reducing the need for external level shifters.

Typical Applications

The SX7M18.432M20F30TNN crystal oscillator is a versatile component suitable for a wide array of electronic applications requiring precise timing:

Microcontroller-Based Systems: It serves as the primary clock source for microcontrollers (MCUs) and microprocessors, providing the necessary timing for instruction execution, peripheral operation, and overall system synchronization. Its stable frequency ensures reliable program execution.

Data Communication Equipment: Essential in devices like modems, routers, and network interface cards, where accurate baud rates and data transfer timing are paramount. The 18.432MHz frequency is particularly useful for generating standard serial communication rates.

Consumer Electronics: Found in various consumer devices such as digital cameras, smart home devices, and portable audio players, where stable timing is required for internal processing, display refresh rates, and interface operations.

Industrial Control Systems: Used in PLCs (Programmable Logic Controllers), sensor interfaces, and automation equipment to provide reliable timing for real-time control, data acquisition, and precise synchronization of industrial processes, even in demanding environments.

Medical Devices: Critical in non-life-sustaining medical equipment for timing functions in diagnostic tools, monitoring systems, and laboratory instruments, where precision and reliability are non-negotiable for accurate measurements and data.

In summary, the SCTF SX7M18.432M20F30TNN is a high-quality 18.432MHz CMOS crystal oscillator offering excellent stability, a compact form factor, and broad compatibility. It is an ideal choice for designers seeking a reliable timing solution for their digital electronic projects. This component is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your design and manufacturing needs.

Browse more SMD MHz Crystal Oscillators at Cirkit Electro Components.

Buy SX7M18.432M20F30TNN online in India from Cirkit Electro Components, Mumbai. GST invoice provided, fast shipping across India, and bulk / quantity pricing available. Add to cart, or contact us for bulk orders and the best price in India.