SX7M20.480M20F30TNN 20.48MHz CMOS 4-SMD Crystal Oscillator

SX7M20.480M20F30TNN is a high-performance 20.48MHz CMOS 4-SMD Crystal Oscillator manufactured by SCTF, a reputable name in passive components. This precision timing device is engineered to generate a stable and accurate clock signal, which is fundamental for the synchronized operation of digital circuits. As a crucial component in the Passive Components category, specifically within Crystals, Oscillators, and Resonators, it falls under Quartz Crystal Oscillators and more precisely, SMD MHz Crystal Oscillators. Its robust design and precise frequency output make it an indispensable part of various electronic systems requiring reliable timing.

Key Specifications

This crystal oscillator boasts several key attributes that define its performance and suitability for diverse applications:

• Output: CMOS – This specifies the logic family of the output signal. CMOS (Complementary Metal-Oxide-Semiconductor) output is widely used due to its low power consumption, high noise immunity, and compatibility with a broad range of digital ICs. It ensures efficient interfacing with microcontrollers, FPGAs, and other digital logic devices.
• Series: 7CM – The series designation often indicates a specific product line or family from the manufacturer, hinting at common characteristics or performance benchmarks within that group. It can be useful for cross-referencing or understanding design lineage.
• Frequency: 20.48MHz – This is the nominal output frequency of the oscillator, meaning it generates a clock signal at 20.48 million cycles per second. This specific frequency is common in various digital communication systems and microprocessors.
• Size (mm): 7.0×5.0×1.30 – This indicates the physical dimensions of the component in millimeters. The compact 7050 package (7.0mm x 5.0mm) is a standard surface-mount footprint, making it suitable for space-constrained applications and automated assembly processes.
• Input Current: 10-20mA – This range specifies the typical current drawn by the oscillator during operation. A lower input current contributes to overall power efficiency, which is critical for battery-powered devices or systems with strict power budgets.
• Mounting Type: Surface Mount – This signifies that the component is designed for surface-mount technology (SMT), where it is soldered directly onto the surface of a printed circuit board (PCB) rather than through holes. SMT allows for higher component density and automated manufacturing.
• Component Type: Crystal Oscillator – This confirms its fundamental function as a device that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency.
• Package / Case: 4-SMD – This refers to the specific physical enclosure and pin configuration. A 4-SMD package indicates it has four solderable pads for surface mounting, a common configuration for crystal oscillators.
• Supply Voltage: 1.62 – 3.63V – This wide operating voltage range makes the oscillator versatile, compatible with both 1.8V, 2.5V, and 3.3V logic systems, offering flexibility in design and integration.
• Frequency Range: 1 – 54MHz – While the specific part operates at 20.48MHz, this attribute indicates the broader range of frequencies available within this oscillator family or design, showcasing the manufacturer’s capability.
• Frequency Stability: ±50ppm – This value indicates how much the output frequency can deviate from its nominal value over a specified temperature range, supply voltage variations, and aging. A stability of ±50ppm (parts per million) is typical for general-purpose applications, ensuring reliable timing.
• Frequency Tolerance: ±20ppm – This specifies the initial accuracy of the oscillator’s frequency at a reference temperature (usually 25°C). A tolerance of ±20ppm signifies a high degree of initial precision in the manufactured part.
• Operating Temperature: -40℃ to +85℃ – This broad temperature range signifies the conditions under which the oscillator is guaranteed to perform within its specified parameters. It makes the SX7M20.480M20F30TNN suitable for industrial, automotive, and outdoor applications where extreme temperatures may be encountered.

Features and Benefits

• High Precision Timing: With a frequency tolerance of ±20ppm and stability of ±50ppm, this oscillator provides highly accurate and consistent clock signals, essential for the reliable operation of digital systems.
• Wide Supply Voltage Range: The 1.62V to 3.63V operating voltage allows for seamless integration into various low-voltage and standard 3.3V digital circuits, reducing design complexity and component count.
• Robust Operating Temperature: Designed to operate from -40℃ to +85℃, it ensures dependable performance in harsh environmental conditions, making it suitable for industrial and automotive applications.
• Compact Surface Mount Package: The 7.0×5.0×1.30mm 4-SMD package facilitates space-saving designs and is compatible with automated pick-and-place manufacturing processes, leading to cost-effective production.
• CMOS Output Compatibility: The CMOS output ensures low power consumption and high noise immunity, making it ideal for interfacing with a wide array of modern digital logic ICs and microcontrollers.
• Reliable SCTF Manufacturing: As a product from SCTF, users benefit from the manufacturer’s commitment to quality and consistency in passive component production.

Typical Applications

The SX7M20.480M20F30TNN crystal oscillator is versatile and finds application in numerous electronic systems:

• Microcontroller Clocking: It serves as the primary clock source for microcontrollers and microprocessors, providing the necessary timing for instruction execution, peripheral operation, and data processing in embedded systems.
• Wireless Communication Modules: Essential for maintaining precise frequency control in Wi-Fi, Bluetooth, Zigbee, and other RF modules, ensuring accurate data transmission and reception.
• Industrial Control Systems: Used in PLCs, motor control units, and sensor interfaces where stable timing is critical for real-time data acquisition, process control, and synchronization of operations in factory automation.
• Consumer Electronics: Found in devices such as digital cameras, smart home devices, and portable audio players, providing the fundamental clocking for their internal digital logic and data processing.
• Networking Equipment: Utilized in routers, switches, and network interface cards to provide stable clock signals for data packet timing, ensuring reliable and high-speed network communication.
• Automotive Electronics: Integrated into infotainment systems, engine control units (ECUs), and advanced driver-assistance systems (ADAS) where robust and reliable timing is paramount for safety and performance.

In summary, the SX7M20.480M20F30TNN from SCTF is a high-quality 20.48MHz CMOS 4-SMD Crystal Oscillator offering excellent stability, a wide operating temperature range, and a compact footprint. It is an ideal choice for designers seeking a reliable timing solution for a broad spectrum of digital applications. This component is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your projects.

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