Editorial Technical Reference

Clock Oscillator

This page explains how Clock Oscillator is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electronic component that generates precise timing signals for digital circuits.

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Product Specifications

Technical details and manufacturing context for Clock Oscillator

Definition
A clock oscillator is a critical timing component within counting circuitry that produces a stable, periodic electronic signal used to synchronize operations, coordinate data flow, and control the timing of digital logic circuits, counters, and microprocessors. This component is essential in computer, electronic, and optical product manufacturing, where precise timing is fundamental to system performance. The oscillator generates a continuous oscillating signal at a specific frequency using piezoelectric crystals (quartz) or electronic circuits that create resonance, providing a stable time base for digital systems. Key parameters include a frequency range of 1–125 MHz with standard CMOS output, frequency stability of ±25 ppm over temperature, supply voltage, and load variations, and a supply voltage of 3.3 V DC ±10% (other voltages available). The output load is 15 pF CMOS, with rise/fall time ≤5 ns measured between 10% and 90% of output swing, and duty cycle 45–55% at 50% VDD. Operating temperature ranges from -40 to 85 °C, storage from -55 to 125 °C, start-up time ≤10 ms, and phase jitter ≤1 ps RMS integrated from 12 kHz to 20 MHz. Package size is 3.2 × 2.5 mm (other sizes available), and weight ≤0.1 g typical. Materials include quartz crystal, semiconductor materials, and ceramic substrate. These values are directory references and must be verified with the manufacturer for the specific model and application. Always confirm model-specific specifications and applicable standards with the legal manufacturer or supplier before procurement.
Working Principle
The clock oscillator generates a continuous oscillating signal at a specific frequency using piezoelectric crystals (quartz) or electronic circuits that create resonance. The crystal or resonant circuit vibrates at a precise frequency when voltage is applied, and the oscillator circuit amplifies and maintains this oscillation. The output is a stable square wave or sine wave that serves as a timing reference for digital systems. The frequency is determined by the physical properties of the crystal and the circuit design. The oscillator ensures that all digital components operate in synchronization, providing a reliable time base for data processing and control.
Common Materials
Quartz crystal, Semiconductor materials, Ceramic substrate
Technical Parameters
ParameterTypical rangeNotes & selection driver
Frequency Range1–125 MHzStandard CMOS output; higher frequencies available on request
Frequency Stability±25 ppmOver temperature, supply voltage, and load variations
Supply Voltage3.3 ±10% V DCOther voltages (1.8, 2.5, 5.0) available
Output Load15 pFCMOS load; other loads on request
Rise/Fall Time≤5 nsMeasured between 10% and 90% of output swing
Duty Cycle45–55 %At 50% VDD
Operating Temperature-40–85 °CExtended temperature range available
Storage Temperature-55–125 °CNon-operating
Start-up Time≤10 msFrom power-on to stable output
Phase Jitter≤1 ps RMSIntegrated from 12 kHz to 20 MHz
Package Size3.2 × 2.5 mmOther sizes: 5.0×3.2, 7.0×5.0
Weight≤0.1 gTypical for 3.2×2.5 package

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Quartz Crystal Part
    Provides piezoelectric resonance to establish precise frequency
    Material: Quartz
  • Oscillator Circuit
    Amplifies and sustains the oscillation signal
    Material: Semiconductor
  • Package/Enclosure Part
    Protects internal components and provides electrical connections
    Material: Ceramic or plastic

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (hermetic package), no pressure rating required
other spec: Frequency stability: ±20ppm to ±100ppm, Supply voltage: 1.8V to 5.0V, Output type: CMOS/LVDS/HCSL
temperature: -40°C to +85°C (industrial), -55°C to +125°C (military)
Media Compatibility
✓ Printed Circuit Board (PCB) mounting ✓ Clean room assembly environments ✓ Temperature-controlled electronic enclosures
Unsuitable: High-vibration industrial machinery without shock mounting
Sizing Data Required
  • Required frequency (e.g., 10MHz, 25MHz)
  • Supply voltage compatibility with host system
  • Package size/PCB footprint constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Frequency drift
Cause: Aging of quartz crystal due to material degradation, temperature fluctuations, or mechanical stress affecting resonance stability.
Output signal degradation
Cause: Component failure in oscillator circuit (e.g., capacitor aging, transistor degradation) or power supply instability disrupting signal generation.
Maintenance Indicators
  • Audible: Intermittent or missing clock ticks in timing-dependent systems
  • Visual: Erratic or frozen display on digital clocks or timing devices
Engineering Tips
  • Implement temperature compensation or controlled environment to minimize thermal stress on quartz crystal
  • Use high-quality power filtering and voltage regulation to prevent electrical noise and supply fluctuations

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/ASQ Z1.4-2003 - Sampling Procedures and Tables for Inspection by Attributes DIN EN 60747-14 - Semiconductor devices - Part 14: Semiconductor sensors - Piezoelectric and dielectric devices for clock oscillators

Quoted from the published standard.

Manufacturing Precision
  • Frequency Stability: +/-50 ppm (parts per million)
  • Output Duty Cycle: 45% to 55%
Quality Inspection
  • Frequency Accuracy Test using High-Precision Frequency Counter
  • Environmental Stress Screening (ESS) including Temperature Cycling and Vibration Testing

Manufacturers of Clock Oscillator

Manufacturer profiles associated with Clock Oscillator.

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Frequently Asked Questions

What is the frequency range of this clock oscillator?

The frequency range is 1–125 MHz with standard CMOS output. Higher frequencies may be available on request, but you should confirm with the manufacturer for specific models.

What is the frequency stability?

The frequency stability is ±25 ppm over temperature, supply voltage, and load variations. This indicates how much the output frequency can deviate from the nominal value under specified conditions.

What supply voltage does it require?

The standard supply voltage is 3.3 V DC ±10%. Other voltages such as 1.8 V, 2.5 V, and 5.0 V are available on request. Always verify the exact voltage requirement for your application.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C. An extended temperature range may be available, but you should check with the manufacturer for specific options.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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