Industry-Verified Manufacturing Data (2026)

Phase Detector

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Phase Detector 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 Phase Detector is characterized by the integration of Input Buffer/Amplifier and Core Detector Circuit (e.g., XOR gate, Flip-Flops). In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (Silicon) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A circuit that compares the phase difference between two input signals and produces an output voltage proportional to that difference.

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Product Specifications

Technical details and manufacturing context for Phase Detector

Definition
In a frequency synthesizer, the phase detector is a critical component that compares the phase of the reference frequency signal with the phase of the signal from the voltage-controlled oscillator (VCO) after division. Its output, an error voltage, drives the loop filter to adjust the VCO frequency, ensuring phase lock and stable output frequency generation.
Working Principle
The phase detector receives two periodic input signals (e.g., a reference signal and a feedback signal from a divided VCO output). It generates an output signal (typically a voltage or current pulse) whose average value is directly proportional to the phase difference between the two inputs. This error signal is then filtered and used to control the VCO, closing the phase-locked loop (PLL). Common implementations include XOR gates, flip-flops (e.g., phase-frequency detectors), and mixer-based detectors.
Common Materials
Semiconductor (Silicon)
Technical Parameters
  • Phase detector gain (Kd), indicating output voltage change per radian of phase difference. (V/rad) Standard Spec
Components / BOM
  • Input Buffer/Amplifier
    Conditions the input signals to appropriate logic levels or amplitudes for the core detector circuit.
    Material: Semiconductor (Silicon)
  • Core Detector Circuit (e.g., XOR gate, Flip-Flops)
    The active circuit that performs the phase comparison operation on the conditioned inputs.
    Material: Semiconductor (Silicon)
  • Output Stage/Charge Pump
    Converts the logic state or timing information from the core circuit into an analog voltage or current error signal. In a PFD, this is often a charge pump.
    Material: Semiconductor (Silicon)
Engineering Reasoning
0-5 V input signal range, 0-360° phase difference measurement, -40°C to 85°C ambient temperature
Input voltage exceeding 5.5 V causes comparator saturation, phase difference >360° creates ambiguous output, temperature >125°C causes semiconductor junction breakdown
Design Rationale: Schottky diode forward voltage drop mismatch (0.3-0.4 V variation) creates phase offset error, thermal noise (4kT/R) at 300K exceeds comparator threshold at 10 mV, charge injection from CMOS switches introduces 5-10 ps timing jitter
Risk Mitigation (FMEA)
Trigger Input signal amplitude exceeding 5.5 V peak-to-peak
Mode: Comparator output saturation at rail voltage (0 V or 5 V)
Strategy: Implement 5.1 V Zener diode clamping at both input terminals with 100 Ω series resistance
Trigger Ambient temperature exceeding 125°C for >1000 hours
Mode: PN junction thermal runaway causing permanent gain reduction >3 dB
Strategy: Integrate on-chip temperature sensor with automatic shutdown at 110°C using PTAT circuit with 2 mV/°C coefficient

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Phase Detector.

silicon phase detector circuit phase difference measurement device electronic signal phase comparator XOR gate phase detector charge pump output phase detector

Applied To / Applications

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

Frequency Synthesizer
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Clock Generator / PLL
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Phase-Locked Loop (PLL)
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Phase-Locked Loop (PLL) Circuit
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Timing Adjustment Circuitry
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Clock Data Recovery (CDR) Circuit
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Clock Recovery Unit
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Phase-locked loop
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Clock Recovery Circuit
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Clock and Data Recovery (CDR) Circuit
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (electronic circuit)
other spec: Input frequency range: 1 Hz to 100 MHz, Supply voltage: ±5V to ±15V
temperature: -40°C to +85°C
Media Compatibility
✓ Clean room electronics assembly ✓ Laboratory instrumentation ✓ Telecommunications equipment
Unsuitable: High-vibration industrial machinery environments
Sizing Data Required
  • Input signal frequency range
  • Required phase detection accuracy/resolution
  • Output voltage range requirement

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal drift or loss
Cause: Degradation of internal components (e.g., aging capacitors, thermal stress on semiconductors) leading to inaccurate phase detection or complete failure.
Mechanical wear or damage
Cause: Physical stress from vibration, misalignment, or environmental contaminants (dust, moisture) affecting moving parts or connections.
Maintenance Indicators
  • Inconsistent or erratic output readings during operation
  • Unusual audible noise (humming, buzzing) or overheating from the unit
Engineering Tips
  • Implement regular calibration and environmental monitoring (temperature, humidity) to prevent signal drift and component degradation.
  • Ensure proper mounting, vibration isolation, and protective enclosures to shield from mechanical stress and contaminants.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 (Quality Management Systems) ANSI/ISA-12.12.01 (Electrical Equipment for Hazardous Locations) CE Marking (EU Compliance for Safety, Health, and Environmental Protection)
Manufacturing Precision
  • Frequency Accuracy: +/- 0.5% of full scale
  • Phase Shift Linearity: +/- 1 degree over operating range
Quality Inspection
  • Calibration Verification against NIST-traceable standards
  • Environmental Stress Testing (Temperature, Humidity, Vibration)

Factories Producing Phase Detector

Verified manufacturers with capability to produce this product in China

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✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Jan 26, 2026
★★★★★
"The technical documentation for this Phase Detector is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Project Engineer from Canada Jan 23, 2026
★★★★☆
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Phase Detector so far. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Jan 20, 2026
★★★★★
"Testing the Phase Detector now; the technical reliability results are within 1% of the laboratory datasheet."
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.”

12 sourcing managers are analyzing this specification now. Last inquiry for Phase Detector from India (32m ago).

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Frequently Asked Questions

What is the primary application of this phase detector in electronic manufacturing?

This phase detector is primarily used in phase-locked loops (PLLs), communication systems, and signal processing equipment where precise phase comparison between two electronic signals is required for synchronization or measurement purposes.

How does the semiconductor silicon material affect the phase detector's performance?

Silicon semiconductor construction ensures high reliability, temperature stability, and fast switching speeds, making it suitable for high-frequency applications in computer and optical product manufacturing environments.

What are the key components in the BOM that determine accuracy?

The core detector circuit (XOR gate or flip-flops) provides the phase comparison function, while the input buffer/amplifier ensures clean signal input, and the output stage/charge pump converts the phase difference to a proportional voltage output with minimal error.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

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