---
title: "Demodulator"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DEMODULATOR"
  data_integrity_hash: "77a3217f0ac3d71c8100dc1d7c945dab"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:DEMODULATOR"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/demodulator.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/demodulator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-2.4 GHz, -40 to +85°C, 3.3-5.0 VDC"
    unit: "MHz"
engineering_limits:
  max_safe_operating_point:
    value: 10
    unit: "dBm"
    consequence: "Schottky diode junction breakdown at reverse bias &gt; 5 V, semiconductor lattice damage from hot carrier injection at &gt; 150°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Local oscillator phase noise &gt; -80 dBc/Hz at 10 kHz offset"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement phase-locked loop with 100 ppm crystal reference and 40 dB phase noise suppression"
  - node_2:
      trigger: "DC blocking capacitor ESR &gt; 0.5 Ω at 1.8 GHz"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Use 0402-size ceramic capacitors with X7R dielectric and &lt; 0.1 Ω ESR at operating frequency"
bom_nodes:
  mixer-multiplier:
    type: "part"
    urn: "URN:CNFX:ME:MIXER_MULTIPLIER"
    interface_type: "physical-logic-coupled"
  local-oscillator:
    type: "part"
    urn: "URN:CNFX:ME:LOCAL_OSCILLATOR"
    interface_type: "physical-logic-coupled"
  low-pass-filter:
    type: "part"
    urn: "URN:CNFX:ME:LOW_PASS_FILTER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU) - ELECTROMAGNETIC COMPATIBILITY DIRECTIVE 2014/30/EU"
    scope: "Verified Engineering Specification"
  - standard: "IEC 60793-1-1:2022 OPTICAL FIBRES - PART 1-1: MEASUREMENT METHODS AND TEST PROCEDURES - GENERAL AND GUIDANCE"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/demodulator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d4d2d2649906169d159e9b9fcb7204937cae1fc8c06022d55da7f643c46f373b"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Demodulator

## 1. Technical Definition
Electronic circuit that extracts the original information-bearing signal from a modulated carrier wave.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-2.4 GHz, -40 to +85°C, 3.3-5.0 VDC**. Failure boundary: **Input power &gt; +10 dBm causes mixer compression, junction temperature &gt; 125°C triggers thermal runaway**, Mechanism: **Schottky diode junction breakdown at reverse bias &gt; 5 V, semiconductor lattice damage from hot carrier injection at &gt; 150°C**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Local oscillator phase noise &gt; -80 dBc/Hz at 10 kHz offset | 8 | Signal-to-noise ratio degradation below 15 dB in recovered baseband | Implement phase-locked loop with 100 ppm crystal reference and 40 dB phase noise suppression |
| DC blocking capacitor ESR &gt; 0.5 Ω at 1.8 GHz | 8 | Quadrature phase error &gt; 5° causing image frequency interference | Use 0402-size ceramic capacitors with X7R dielectric and &lt; 0.1 Ω ESR at operating frequency |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | MHz | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Mixer / Multiplier](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/mixer-multiplier.md) `(Standalone System)`
- [Local Oscillator](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/local-oscillator.md) `(Standalone System)`
- [Low-Pass Filter](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/low-pass-filter.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Signal Generator**, **Oscilloscope**, **Spectrum Analyzer**  
**Downstream Applications**: Satellite Receivers, Radio Communication Devices, Television Sets  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in this demodulator's construction?
**A**: This demodulator utilizes semiconductor materials like Silicon and Gallium Arsenide, ceramic substrates for stability, copper for conductivity, and solder for component connections.

### Q: How does the demodulator extract the original signal from a carrier wave?
**A**: The demodulator uses a mixer/multiplier combined with a local oscillator to down-convert the modulated signal, then applies a low-pass filter to isolate and extract the original information-bearing signal.

### Q: What industries commonly use this type of demodulator?
**A**: This demodulator is designed for computer, electronic, and optical product manufacturing, where precise signal extraction from modulated carrier waves is essential for communication and data processing systems.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS
- CE MARKING (EU) - ELECTROMAGNETIC COMPATIBILITY DIRECTIVE 2014/30/EU
- IEC 60793-1-1:2022 OPTICAL FIBRES - PART 1-1: MEASUREMENT METHODS AND TEST PROCEDURES - GENERAL AND GUIDANCE

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Demodulator](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/demodulator)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: DEMODULATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 45d183fd
