SX7DF156.250B20F30HNN 156.25MHz LVPECL,LVDS ,HCSL 6-SMD Differential Crystal Oscillator

SX7DF156.250B20F30HNN

Overview

SX7DF156.250B20F30HNN is a high-performance differential crystal oscillator manufactured by SCTF, a reputable name in passive components. This Surface Mount Device (SMD) is specifically designed to generate precise and stable clock signals at a frequency of 156.25MHz. As a differential crystal oscillator, it produces two output signals that are 180 degrees out of phase, offering superior noise immunity and signal integrity compared to single-ended oscillators. This makes it an ideal choice for high-speed digital systems where signal quality is paramount. Its robust design and versatile output options ensure reliable operation across a wide range of demanding applications.

Key Specifications

• Output: LVPECL, LVDS, HCSL
  This oscillator offers multiple output types: Low Voltage Positive Emitter Coupled Logic (LVPECL), Low Voltage Differential Signaling (LVDS), and High-Speed Current Steering Logic (HCSL). This versatility allows the component to interface seamlessly with various high-speed digital circuits and FPGAs, providing flexibility in system design and reducing the need for external level shifters.
• Series: 7Z
  Belonging to the 7Z series, this indicates a specific product family from SCTF known for its performance characteristics and reliability in differential clocking applications.
• Frequency: 156.25MHz
  The fixed output frequency of 156.25MHz is a critical parameter, making this oscillator suitable for applications requiring precise timing at this specific rate, such as Ethernet, Fibre Channel, and other high-speed data communication protocols.
• Size (mm): 7.0×5.0×1.45
  With compact dimensions of 7.0mm by 5.0mm and a height of 1.45mm, this component is designed for space-constrained applications, enabling miniaturization of electronic devices without compromising performance.
• Phase Jitter: 0.5pS
  A remarkably low phase jitter of 0.5 picoseconds (pS) is crucial for high-speed digital systems. Low phase jitter ensures that the clock signal edges are very stable and precise, minimizing timing errors and improving the overall bit error rate (BER) in data transmission.
• Mounting Type: Surface Mount
  As a Surface Mount Device (SMD), it is designed for automated assembly processes, facilitating efficient and cost-effective manufacturing on printed circuit boards (PCBs).
• Component Type: Differential Crystal Oscillator
  This explicitly identifies the component as a differential crystal oscillator, highlighting its capability to provide two complementary outputs for enhanced noise rejection and signal integrity.
• Package / Case: 6-SMD
  The 6-SMD package indicates a standard footprint for surface mount components, ensuring compatibility with common PCB layouts and assembly equipment.
• Supply Voltage: 1.8V, 2.5V, 3.3V
  The ability to operate across multiple supply voltages (1.8V, 2.5V, 3.3V) makes this oscillator highly adaptable to various system power architectures, simplifying power management and integration.
• Frequency Range: 90 – 200MHz
  While the specific part operates at 156.25MHz, this attribute indicates the broader frequency range within which this series of oscillators can be configured, showcasing the manufacturer’s capability in this domain.
• Frequency Stability: ±50ppm
  A frequency stability of ±50 parts per million (ppm) over the operating temperature range signifies that the output frequency will remain highly accurate and consistent, which is vital for reliable system operation.
• Frequency Tolerance: ±20ppm
  The initial frequency tolerance of ±20ppm indicates the maximum deviation from the nominal frequency at room temperature, ensuring that the oscillator starts up with high precision.
• Operating Temperature: -40℃ to +85℃
  This wide operating temperature range ensures robust performance in challenging industrial and automotive environments, from extreme cold to high heat.

Features and Benefits

• Exceptional Signal Integrity: The differential output (LVPECL, LVDS, HCSL) significantly enhances noise immunity and reduces electromagnetic interference (EMI), ensuring clean and reliable clock signals even in noisy electrical environments.
• Ultra-Low Phase Jitter: With a phase jitter of only 0.5pS, this oscillator provides extremely precise timing, which is critical for high-speed data transmission, reducing bit error rates and improving system performance in demanding applications like optical networking and data centers.
• Versatile Voltage Compatibility: Supporting multiple supply voltages (1.8V, 2.5V, 3.3V) offers designers flexibility and simplifies integration into diverse power architectures, reducing the need for additional voltage conversion circuitry.
• Compact and Robust Design: The 7.0×5.0×1.45mm 6-SMD package is ideal for space-constrained applications, while its wide operating temperature range (-40℃ to +85℃) ensures reliable operation in harsh industrial and commercial settings.
• High Frequency Precision: The combination of ±20ppm frequency tolerance and ±50ppm frequency stability ensures that the 156.25MHz output remains highly accurate and consistent over time and varying environmental conditions, crucial for synchronous systems.

Typical Applications

• High-Speed Data Communication: The SX7DF156.250B20F30HNN is perfectly suited for 10 Gigabit Ethernet (10GbE) and Fibre Channel applications, where its 156.25MHz frequency and low jitter are essential for maintaining data integrity and throughput over long distances.
• Optical Networking Equipment: Used in transceivers, multiplexers, and other optical network components, this oscillator provides the precise clocking required for high-speed optical data links, ensuring reliable signal synchronization.
• Telecommunications Infrastructure: Critical for base stations, routers, and switches in telecommunications networks, where stable and accurate clock signals are vital for timing synchronization across complex communication protocols and data streams.
• Test and Measurement Equipment: In high-precision oscilloscopes, spectrum analyzers, and signal generators, the low phase jitter and stable frequency output of this oscillator contribute to the accuracy and reliability of measurements.
• Industrial Control Systems: For advanced industrial automation and control systems that require precise timing for synchronized operations, this oscillator provides the necessary stability and performance to ensure reliable process control.

Summary

The SX7DF156.250B20F30HNN from SCTF is a premium 156.25MHz differential crystal oscillator offering unparalleled performance for high-speed digital applications. Its advanced features, including ultra-low phase jitter, versatile output options, and robust design, make it an indispensable component for demanding electronic systems. This high-quality part is stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your critical projects.

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