Industry-Verified Manufacturing Data (2026)

Modulator/Demodulator

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Modulator/Demodulator 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 Modulator/Demodulator is characterized by the integration of Oscillator and Mixer. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor materials (silicon, gallium arsenide) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Electronic circuit that modulates and demodulates signals for transmission and reception

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Product Specifications

Technical details and manufacturing context for Modulator/Demodulator

Definition
A critical component within a transceiver circuit that performs two complementary functions: modulation (encoding information onto a carrier wave for transmission) and demodulation (extracting the original information from the received modulated signal).
Working Principle
Converts digital data to analog signals for transmission (modulation) and converts received analog signals back to digital data (demodulation) using techniques like amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM).
Common Materials
Semiconductor materials (silicon, gallium arsenide), Copper, Ceramic substrates
Technical Parameters
  • Operating frequency range (MHz) Customizable
Components / BOM
  • Oscillator
    Generates the carrier wave frequency
    Material: Semiconductor crystal
  • Mixer
    Combines input signal with carrier wave for modulation
    Material: Semiconductor
  • Filter
    Removes unwanted frequencies from the signal
    Material: Ceramic or SAW material
  • Amplifier
    Boosts signal strength for transmission or reception
    Material: Semiconductor
Engineering Reasoning
0.1-2.4 GHz with 50 Ω impedance matching
Input power exceeding +20 dBm causes irreversible semiconductor junction breakdown
Design Rationale: Thermal runaway in GaAs FET transistors due to excessive RF power dissipation exceeding 150°C junction temperature
Risk Mitigation (FMEA)
Trigger Local oscillator phase noise exceeding -110 dBc/Hz at 10 kHz offset
Mode: Bit error rate degradation above 10^-5 at 256-QAM modulation
Strategy: Temperature-compensated crystal oscillator with 0.5 ppm stability and phase-locked loop filtering
Trigger DC bias voltage drift beyond ±5% of nominal 3.3V operating point
Mode: Intermodulation distortion exceeding -40 dBc at two-tone test
Strategy: Low-dropout voltage regulator with 0.1% line regulation and thermal compensation network

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Modulator/Demodulator.

semiconductor modulator demodulator circuit signal modulation demodulation electronic component computer optical product manufacturing modulator gallium arsenide modulator demodulator design oscillator mixer filter amplifier BOM

Applied To / Applications

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

Transceiver Circuit
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RF Transceiver IC
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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 component)
other spec: Frequency range: 1 MHz to 2.4 GHz, Power supply: 3.3V to 5V DC
temperature: -40°C to +85°C
Media Compatibility
✓ RF coaxial cables ✓ Printed circuit boards (FR-4 material) ✓ Shielded enclosures
Unsuitable: High-voltage electrical discharge environments
Sizing Data Required
  • Carrier frequency range (MHz/GHz)
  • Modulation scheme (e.g., QPSK, QAM, FSK)
  • Required data rate/bandwidth (Mbps)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Degradation
Cause: Component aging (e.g., capacitor drift, transistor degradation), thermal stress from poor heat dissipation, or contamination on circuit boards affecting signal integrity.
Power Supply Failure
Cause: Voltage spikes/transients, electrolytic capacitor drying out or swelling, or overheating due to inadequate ventilation or dust accumulation.
Maintenance Indicators
  • Intermittent or distorted output signals (audible as noise in audio modems, visible as data errors in digital systems)
  • Unusual heat emission or burning smell from the unit casing, indicating potential overheating or component failure
Engineering Tips
  • Implement regular thermal management checks: Ensure proper ventilation, clean air filters, and verify cooling fans are operational to prevent overheating of sensitive electronic components.
  • Use surge protection and voltage regulation: Install uninterruptible power supplies (UPS) or line conditioners to protect against power anomalies and extend the lifespan of power supply components.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems IEC 61000-6-2 Electromagnetic Compatibility EN 55032:2015+A11:2020 Electromagnetic Emissions
Manufacturing Precision
  • Carrier Frequency Stability: +/- 0.001%
  • Modulation Depth Accuracy: +/- 2%
Quality Inspection
  • Bit Error Rate (BER) Testing
  • Spurious Emission Spectrum Analysis

Factories Producing Modulator/Demodulator

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

P Project Engineer from Canada Feb 02, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Modulator/Demodulator meets all ISO standards."
Technical Specifications Verified
S Sourcing Manager from United States Jan 30, 2026
★★★★★
"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Modulator/Demodulator arrived with full certification."
Technical Specifications Verified
P Procurement Specialist from United Arab Emirates Jan 27, 2026
★★★★★
"Great transparency on the Modulator/Demodulator components. Essential for our Computer, Electronic and Optical Product Manufacturing supply chain."
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.”

8 sourcing managers are analyzing this specification now. Last inquiry for Modulator/Demodulator from Turkey (38m ago).

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Frequently Asked Questions

What are the primary applications of this modulator/demodulator in computer and optical product manufacturing?

This modulator/demodulator is used in data communication systems, fiber optic networks, wireless transmission equipment, and signal processing devices within computer, electronic, and optical manufacturing applications.

Why are semiconductor materials like silicon and gallium arsenide used in this modulator/demodulator?

Silicon provides cost-effective integration with standard electronics, while gallium arsenide offers superior high-frequency performance and efficiency for optical and high-speed communication applications.

How do the oscillator, mixer, filter, and amplifier components work together in this modulator/demodulator?

The oscillator generates carrier signals, the mixer combines/modulates or separates/demodulates signals, the filter removes unwanted frequencies, and the amplifier boosts signal strength for reliable transmission and reception.

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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