Industry-Verified Manufacturing Data (2026)

Clock Data Recovery (CDR) Circuit

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

A 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 Data Recovery (CDR) Circuit

Definition
A critical component within a Protocol PHY (Physical Layer) Chip that recovers the clock signal embedded in incoming serial data streams, enabling accurate data sampling and synchronization for reliable high-speed communication.
Working Principle
The circuit analyzes transitions in the incoming data stream (e.g., using a phase-locked loop (PLL) or delay-locked loop (DLL)) to generate a local clock signal that is phase-aligned with the data. This recovered clock is then used to sample the data at the optimal point in the bit period.
Common Materials
Silicon (Semiconductor Substrate)
Technical Parameters
  • Maximum data rate supported for clock recovery. (Gbps) Per Request
Components / BOM
  • Phase Detector
    Compares the phase of the incoming data edges with the recovered clock to generate an error signal.
    Material: Semiconductor (Transistors)
  • Voltage-Controlled Oscillator (VCO) or Digitally Controlled Oscillator (DCO)
    Generates the local clock signal whose frequency is adjusted based on the phase error signal.
    Material: Semiconductor (Inductors, Capacitors, Transistors)
  • Loop Filter
    Filters the phase error signal to control the dynamics (bandwidth, stability) of the recovery loop.
    Material: Semiconductor (Resistors, Capacitors)
Engineering Reasoning
1.0-12.5 Gbps data rate, 0.5-2.0 Vpp input amplitude, -40 to 85°C ambient temperature
Phase error exceeds 0.15 UI (Unit Interval), jitter tolerance falls below 0.3 UIpp, lock time exceeds 100 μs
Design Rationale: Phase-locked loop (PLL) bandwidth reduction below 1 MHz due to charge pump current mismatch exceeding 5%, causing insufficient phase margin below 45° at 10 GHz operation
Risk Mitigation (FMEA)
Trigger Power supply noise exceeding 50 mVpp at 100 MHz
Mode: Phase detector metastability causing bit error rate degradation above 10^-12
Strategy: On-chip low-dropout regulator with 30 dB power supply rejection ratio at 100 MHz and dedicated analog ground plane
Trigger Temperature gradient of 15°C/mm across die
Mode: Voltage-controlled oscillator frequency drift exceeding ±500 ppm
Strategy: Proportional-to-absolute-temperature (PTAT) bias current generation and symmetrical layout with thermal guard rings

Industry Taxonomies & Aliases

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

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: 1.8V to 3.3V supply range
data rate: 1 Mbps to 10 Gbps
temperature: -40°C to +125°C (industrial grade)
jitter tolerance: ±0.5 UI peak-to-peak
Media Compatibility
✓ fiber optic communication systems ✓ high-speed serial data links (e.g., PCIe, SATA) ✓ wireless baseband processing units
Unsuitable: high electromagnetic interference (EMI) environments without proper shielding
Sizing Data Required
  • data rate (bps)
  • jitter specification (UI or ps)
  • power supply voltage (V)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Phase-lock failure
Cause: Voltage-controlled oscillator (VCO) drift due to temperature fluctuations or aging components, causing loss of synchronization with incoming data signal.
Jitter accumulation
Cause: Poor signal integrity from electromagnetic interference (EMI), power supply noise, or degraded transmission lines, leading to timing errors and data corruption.
Maintenance Indicators
  • Increased bit error rate (BER) or intermittent data loss in system logs
  • Abnormal temperature readings or audible high-frequency whine from oscillator components
Engineering Tips
  • Implement active thermal management with heatsinks or controlled airflow to stabilize VCO performance and reduce temperature-induced drift.
  • Use shielded cabling, proper grounding, and power supply filtering to minimize EMI and noise that degrade signal integrity and increase jitter.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems ANSI/ESD S20.20 Electrostatic Discharge Control Program CE Marking (EU Directive 2014/35/EU Low Voltage Directive)
Manufacturing Precision
  • Jitter Tolerance: +/- 0.1 UI (Unit Interval)
  • Frequency Lock Range: +/- 100 ppm (parts per million)
Quality Inspection
  • Bit Error Rate Test (BERT)
  • Jitter Transfer Function Measurement

Factories Producing Clock Data Recovery (CDR) Circuit

Verified manufacturers with capability to produce this product in China

✓ 95% Supplier Capability Match Found

S Sourcing Manager from Brazil Jan 28, 2026
★★★★★
"Found 22+ suppliers for Clock Data Recovery (CDR) Circuit on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Procurement Specialist from Canada Jan 25, 2026
★★★★☆
"The technical documentation for this Clock Data Recovery (CDR) Circuit is very thorough, especially regarding technical reliability. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from United States Jan 22, 2026
★★★★★
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Clock Data Recovery (CDR) Circuit so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

15 sourcing managers are analyzing this specification now. Last inquiry for Clock Data Recovery (CDR) Circuit from Germany (1h ago).

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Frequently Asked Questions

What is the primary function of a Clock Data Recovery (CDR) circuit?

A CDR circuit extracts timing information from incoming data streams to synchronize the receiver's clock with the transmitter's clock, ensuring accurate data sampling and reducing bit errors in high-speed communication systems.

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

The essential components include a Phase Detector to compare input/output phases, a Loop Filter to smooth control signals, and a Voltage-Controlled Oscillator (VCO) or Digitally Controlled Oscillator (DCO) to generate the synchronized clock signal.

In which applications are CDR circuits most critical?

CDR circuits are vital in optical communication systems, high-speed data transmission (Ethernet, PCIe), serial communication interfaces, and any application requiring precise clock synchronization from embedded data streams without separate clock signals.

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.

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