SX3M66.6666B20F30TNN 66.6666MHz CMOS 4-SMD Crystal Oscillator

SX3M66.6666B20F30TNN is a high-performance 66.6666MHz CMOS Crystal Oscillator manufactured by SCTF, a reputable name in passive components. This surface-mount device is designed to provide a precise and stable clock signal, essential for the synchronous operation of various digital circuits. As a fundamental timing component, crystal oscillators like the SX3M66.6666B20F30TNN convert electrical energy into a mechanical vibration using the piezoelectric properties of a quartz crystal, which then generates an oscillating electrical signal at a specific frequency. This particular model, belonging to the 3C series, is engineered for reliability and efficiency in demanding electronic applications, ensuring consistent performance across a wide range of operating conditions.

Key Specifications

This crystal oscillator boasts several critical specifications that define its functionality and suitability for diverse applications:

Output: CMOS – The CMOS (Complementary Metal-Oxide-Semiconductor) output type ensures compatibility with a broad spectrum of digital logic families. CMOS outputs are known for their low power consumption and high noise immunity, making them ideal for modern electronic designs where efficiency and signal integrity are paramount.

Series: 3C – The 3C series designation indicates a specific product line from SCTF, often signifying a particular set of performance characteristics, package types, or target applications. This series is typically optimized for general-purpose timing applications requiring robust and stable frequency generation.

Frequency: 66.6666MHz – Operating at a precise frequency of 66.6666MHz, this oscillator is suitable for applications requiring a specific clock speed. This exact frequency is critical for precise data synchronization and timing in microcontrollers, FPGAs, and communication interfaces.

Size (mm): 3.2×2.5×0.95 – The compact dimensions of 3.2mm by 2.5mm with a height of 0.95mm highlight its small footprint. This miniature size is crucial for space-constrained applications, allowing for higher component density on printed circuit boards (PCBs) and enabling the design of smaller, more portable electronic devices.

Input Current: 10-40mA – This range specifies the typical current drawn by the oscillator during operation. Understanding the input current is vital for power supply design, ensuring adequate power delivery and managing overall system power consumption, especially in battery-powered devices.

Mounting Type: Surface Mount – Surface Mount Technology (SMT) allows for automated assembly, reducing manufacturing costs and increasing production efficiency. Surface mount components are directly soldered onto the surface of a PCB, contributing to the miniaturization and reliability of electronic assemblies.

Component Type: Crystal Oscillator – As a crystal oscillator, it provides a self-contained timing solution, generating a stable oscillating signal without external feedback components, simplifying circuit design compared to discrete crystal and oscillator configurations.

Package / Case: 4-SMD – The 4-SMD (Surface Mount Device) package indicates the physical form factor of the component, designed for automated placement and soldering onto PCBs. This standard package ensures broad compatibility with existing manufacturing processes.

Supply Voltage: 1.8V, 2.5V, 3.3V – The multi-voltage compatibility allows this oscillator to be integrated into systems operating at various common logic voltage levels. This flexibility simplifies design and reduces the need for voltage translation circuits, making it versatile across different platforms.

Frequency Range: 1 – 160MHz – While the specific frequency is 66.6666MHz, the indicated frequency range for the series (1-160MHz) suggests the manufacturer’s capability to produce similar oscillators across a wide spectrum, indicating robust design and manufacturing processes.

Frequency Stability: ±50ppm – Frequency stability measures how much the output frequency deviates from its nominal value over time and temperature. A stability of ±50ppm (parts per million) indicates a high degree of precision, crucial for applications where timing accuracy is critical, such as communication systems.

Frequency Tolerance: ±20ppm – Frequency tolerance refers to the maximum permissible deviation of the actual output frequency from the specified nominal frequency at room temperature. A tolerance of ±20ppm signifies a very tight initial accuracy, ensuring the oscillator operates very close to its intended frequency from the outset.

Operating Temperature: -40℃ to +85℃, -40℃ to +105℃, -40℃ to +125℃ – The broad operating temperature range highlights the oscillator’s robustness and suitability for harsh industrial, automotive, and outdoor environments. This ensures reliable performance even under extreme thermal conditions.

Features and Benefits

• High Precision Timing: The 66.6666MHz frequency with excellent stability (±50ppm) and tolerance (±20ppm) ensures highly accurate and reliable clock signals, critical for synchronous digital systems and data integrity.
• Versatile Voltage Compatibility: Support for 1.8V, 2.5V, and 3.3V supply voltages allows seamless integration into a wide array of digital circuits, reducing design complexity and component count.
• Compact and Space-Saving Design: The miniature 3.2×2.5×0.95mm 4-SMD package is ideal for densely packed PCBs and small form-factor devices, contributing to overall product miniaturization.
• Robust Environmental Performance: An extended operating temperature range from -40℃ up to +125℃ ensures dependable operation in challenging industrial, automotive, and high-temperature applications.
• Low Power CMOS Output: The CMOS output type provides efficient signal delivery with minimal power consumption, making it suitable for battery-powered and energy-efficient designs.
• Automated Assembly Ready: As a surface-mount component, it is perfectly suited for high-volume automated manufacturing processes, leading to cost-effective production and consistent quality.

Typical Applications

The SX3M66.6666B20F30TNN crystal oscillator is a versatile component finding use across numerous electronic sectors:

Microcontroller and Microprocessor Clocks: It serves as the primary clock source for microcontrollers and microprocessors, providing the precise timing signals necessary for instruction execution, peripheral synchronization, and overall system operation. Its stability ensures reliable CPU performance.

Data Communication Systems: In networking equipment, modems, routers, and other communication devices, this oscillator provides the accurate clock signals required for data transmission and reception, ensuring proper bit synchronization and minimizing data errors in protocols like Ethernet or USB.

Industrial Control Systems: PLCs (Programmable Logic Controllers), factory automation equipment, and sensor interfaces rely on stable timing for precise control and data acquisition. The SX3M66.6666B20F30TNN’s robust operating temperature range makes it suitable for harsh industrial environments.

Consumer Electronics: From digital cameras and smart home devices to portable audio players and GPS modules, accurate timing is crucial for optimal functionality. Its compact size and low power consumption make it an excellent choice for modern consumer gadgets.

Automotive Electronics: In automotive applications such as engine control units (ECUs), infotainment systems, and advanced driver-assistance systems (ADAS), high-reliability and wide operating temperature range components like this oscillator are essential for safety-critical functions and performance under varying conditions.

Test and Measurement Equipment: Precision instruments like oscilloscopes, frequency counters, and signal generators demand highly accurate and stable reference clocks. The SX3M66.6666B20F30TNN can provide the foundational timing for such demanding applications.

In summary, the SX3M66.6666B20F30TNN from SCTF is a high-quality 66.6666MHz CMOS crystal oscillator offering exceptional precision, reliability, and versatility. Its compact form factor, wide operating temperature range, and multi-voltage compatibility make it an ideal choice for a broad spectrum of modern electronic designs. This component is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt delivery for your project needs.

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