Structured Manufacturing Data (2026)

Clock Recovery Circuit

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Clock Recovery Circuit used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Clock Recovery Circuit is characterized by the integration of Phase Detector and Voltage-Controlled Oscillator (VCO). In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (Silicon) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An electronic circuit that extracts timing information from a data stream to synchronize the receiver's clock with the transmitter's clock.

Product Specifications

Technical details and manufacturing context for Clock Recovery Circuit

Definition
A critical component within a Protocol Decoder that analyzes incoming serial data to reconstruct the original clock signal used during transmission, enabling accurate sampling and decoding of data bits by synchronizing the receiver's internal timing with the embedded timing information in the signal.
Working Principle
The circuit typically uses a phase-locked loop (PLL) or delay-locked loop (DLL) architecture. It detects transitions in the incoming data stream, compares the phase of these transitions with a locally generated clock signal, and adjusts the local clock's frequency and phase through feedback control to match the transmitter's timing, thereby recovering a stable clock signal for data sampling.
Common Materials
Semiconductor (Silicon)
Technical Parameters
  • Operating frequency range (MHz) Customizable
Components / BOM
  • Phase Detector
    Compares the phase difference between the incoming data transitions and the recovered clock signal
    Material: semiconductor
  • Voltage-Controlled Oscillator (VCO)
    Generates the local clock signal whose frequency is adjusted based on the phase detector output
    Material: semiconductor
  • Loop Filter
    Filters the phase detector output to provide a stable control voltage to the VCO
    Material: semiconductor with passive components

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Clock Recovery Circuit.

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: N/A (solid-state electronic component)
other spec: Data rate range: 1 Mbps to 10 Gbps, Jitter tolerance: < 1 UI, Supply voltage: 1.8V to 3.3V
temperature: -40°C to +85°C (industrial grade), -40°C to +125°C (extended)
Media Compatibility
✓ Copper-based communication lines ✓ Fiber optic transceiver systems ✓ Synchronous digital hierarchy (SDH/SONET) networks
Unsuitable: High electromagnetic interference (EMI) environments without proper shielding
Sizing Data Required
  • Data rate (bps)
  • Jitter specification (UI or ps)
  • Reference clock stability (ppm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Clock Jitter Degradation
Cause: Aging of oscillator components (crystals, capacitors) leading to frequency drift, or power supply noise affecting phase-locked loop (PLL) stability.
Signal Lock Loss
Cause: Excessive electromagnetic interference (EMI) disrupting synchronization, or component thermal stress (e.g., solder joint fatigue) causing intermittent connections.
Maintenance Indicators
  • Unstable or flickering display/output in synchronized systems (visual)
  • Audible clicks or pops in audio/video outputs due to timing errors
Engineering Tips
  • Implement regular EMI shielding inspections and ensure proper grounding to minimize interference with sensitive timing signals.
  • Monitor operating temperatures and use thermal management (e.g., heatsinks, airflow) to prevent component aging from thermal cycling stress.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems IEC 61000-4-3 - Electromagnetic Compatibility (EMC) CE Marking - EU Compliance for Electronic Equipment
Manufacturing Precision
  • Jitter Tolerance: +/- 100 ps RMS
  • Frequency Stability: +/- 50 ppm over operating temperature range
Quality Inspection
  • Jitter Measurement Test using oscilloscope/analyzer
  • Bit Error Rate (BER) Test under varying signal conditions

Factories Producing Clock Recovery Circuit

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a clock recovery circuit in electronic systems?

A clock recovery circuit extracts timing information from incoming data streams to synchronize the receiver's internal clock with the transmitter's clock, enabling accurate data sampling and reducing transmission errors in communication systems.

How does the phase detector component work in a clock recovery circuit?

The phase detector compares the phase difference between the incoming data signal and the locally generated clock signal from the VCO, producing an error voltage that adjusts the VCO frequency to achieve synchronization.

What applications commonly use clock recovery circuits in computer and optical manufacturing?

Clock recovery circuits are essential in high-speed data communication systems including fiber optic networks, serial data transmission interfaces (like PCIe and SATA), telecommunications equipment, and digital signal processing systems where precise timing is critical.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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