Structured Manufacturing Data (2026)

Clock and Data Recovery (CDR) Circuit

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Clock and Data Recovery (CDR) 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 and Data Recovery (CDR) Circuit is characterized by the integration of Phase Detector and Voltage-Controlled Oscillator (VCO). In industrial production environments, manufacturers listed on CNFX commonly emphasize Silicon construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A circuit that extracts timing information from a data stream to synchronize receiver operations.

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Product Specifications

Technical details and manufacturing context for Clock and Data Recovery (CDR) Circuit

Definition
A critical component within Serializer/Deserializer (SerDes) systems that recovers the clock signal embedded in an incoming serial data stream, enabling accurate sampling and retiming of the data at the receiver end.
Working Principle
The CDR circuit analyzes transitions in the incoming data stream to generate a local clock signal that is phase-locked to the data's timing. It typically uses a phase-locked loop (PLL) or delay-locked loop (DLL) architecture to adjust the phase and frequency of a voltage-controlled oscillator (VCO) to match the incoming data rate, allowing for precise data sampling at the optimal point in the data eye.
Common Materials
Silicon
Technical Parameters
  • Data rate (Gbps) Customizable
Components / BOM
  • Phase Detector
    Compares the phase of the incoming data with the recovered clock to generate an error signal.
    Material: Silicon
  • Voltage-Controlled Oscillator (VCO)
    Generates the local clock signal whose frequency is controlled by the phase detector's error signal.
    Material: Silicon
  • Loop Filter
    Filters the error signal from the phase detector to provide stable control voltage to the VCO.
    Material: Silicon

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Clock and Data Recovery (CDR) Circuit.

high-speed clock data recovery circuit silicon CDR circuit for optical products phase detector VCO loop filter BOM timing synchronization data stream circuit CDR circuit for electronic manufacturing

Applied To / Applications

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

Serializer/Deserializer (SerDes)
View system integration details
Encoder/Decoder (ENDEC)
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Receiver (RX)
View system integration details
Deserializer (Serial-in Parallel-out)
View system integration details
SerDes (Serializer/Deserializer)
View system integration details

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 28 Gbps, Jitter tolerance: <0.15 UI, Power supply: 1.8V to 3.3V
temperature: -40°C to +85°C (industrial grade), -40°C to +125°C (extended)
Media Compatibility
✓ Copper-based PCB traces ✓ Optical fiber data streams ✓ Backplane serial communication systems
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
Phase Lock Loop (PLL) Jitter Accumulation
Cause: Voltage regulator noise, temperature-induced component drift, or aging capacitors degrading timing stability
Signal Integrity Degradation
Cause: PCB trace impedance mismatch, electromagnetic interference (EMI) from nearby circuits, or connector corrosion increasing bit error rates
Maintenance Indicators
  • Intermittent data synchronization errors or increased bit error rates in system logs
  • Abnormal thermal signature on the CDR IC or voltage regulator during infrared inspection
Engineering Tips
  • Implement periodic calibration using a precision reference clock to compensate for timing drift and component aging
  • Enhance EMI shielding and maintain clean, stable power supply with dedicated filtering to reduce noise-induced jitter

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ANSI/ESD S20.20 - Electrostatic discharge control program CE marking - EMC Directive 2014/30/EU
Manufacturing Precision
  • Jitter tolerance: +/- 100 ps
  • Frequency accuracy: +/- 50 ppm
Quality Inspection
  • Bit Error Rate Test (BERT)
  • Eye diagram analysis

Factories Producing Clock and Data Recovery (CDR) Circuit

Manufacturer profiles with relevant production capability in China

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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 and Data Recovery (CDR) circuit?

A CDR circuit extracts timing information from an incoming data stream to synchronize the receiver's operations, ensuring accurate data sampling and recovery in communication systems.

What are the key components in a typical CDR circuit BOM?

The essential components include a Phase Detector to compare input and output phases, a Voltage-Controlled Oscillator (VCO) to generate the clock signal, and a Loop Filter to stabilize the feedback loop.

Why is silicon commonly used for manufacturing CDR circuits?

Silicon is preferred due to its excellent semiconductor properties, scalability for high-frequency applications, cost-effectiveness, and compatibility with standard CMOS processes in electronic and optical product manufacturing.

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 for Computer, Electronic and Optical Product Manufacturing.

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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