RF Demodulators

Image Part Number Description / PDF Quantity Rfq
SI2180-A50-GM

SI2180-A50-GM

Silicon Labs

IC DEMODULATORULATOR 48QFN

0

SI2180-A50-GMR

SI2180-A50-GMR

Silicon Labs

IC DEMODULATORULATOR 48QFN

0

UPC8190K-E1-A

UPC8190K-E1-A

CEL (California Eastern Laboratories)

RF DEMODULATOR IC 380MHZ 20QFN

0

UPC8190K-A

UPC8190K-A

CEL (California Eastern Laboratories)

RF DEMODULATOR IC 380MHZ 20QFN

0

SI2183-A50-GMR

SI2183-A50-GMR

Silicon Labs

IC DEMODULATORULATOR 48QFN

0

UPC8194K-E1-A

UPC8194K-E1-A

CEL (California Eastern Laboratories)

RF DEMODULATOR IC 190MHZ 20QFN

0

SI21802-A50-GMR

SI21802-A50-GMR

Silicon Labs

IC DEMODULATORULATOR 68QFN

0

RF Demodulators

1. Overview

RF/IF demodulators are electronic devices that convert modulated radio frequency (RF) or intermediate frequency (IF) signals into baseband signals for data recovery. RFID RF demodulators specialize in extracting data from radio frequency identification (RFID) signals. These components are critical in wireless communication systems, enabling signal processing in applications ranging from telecommunications to IoT devices.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Amplitude DemodulatorsExtract amplitude variations (AM signals)AM radio receivers, RFID tag readers
Frequency DemodulatorsConvert frequency modulation (FM) to voltageFM transceivers, Bluetooth modules
Phase DemodulatorsDetect phase shifts (PSK/QAM signals)5G base stations, Wi-Fi 6 access points
IQ DemodulatorsSeparate in-phase and quadrature componentsSoftware-defined radios, MIMO systems

3. Structure and Components

Typical RF demodulator architecture includes: - RF front-end (low-noise amplifier) - Local oscillator (LO) for frequency conversion - Mixer for downconversion - Filter bank (IF/baseband filters) - Detector circuit (envelope/digital) - Output buffer amplifier Modern devices integrate these components in CMOS or GaAs processes for compact form factors.

4. Key Technical Specifications

ParameterImportanceTypical Value
Frequency RangeDetermines operational bandwidth100 MHz - 6 GHz
Conversion LossAffects signal strength6-12 dB
Dynamic RangeMeasures signal handling capability60-100 dB
Phase NoiseImpacts signal integrity-150 dBc/Hz @ 1 MHz offset
Power ConsumptionCritical for battery operation50-300 mW

5. Application Fields

Key industries and equipment: - Telecommunications: 5G NR base stations, microwave backhaul - Consumer Electronics: Smartphones, wireless earbuds - Industrial: RFID asset tracking systems - Medical: Wireless patient monitoring devices - Automotive: Tire pressure monitoring systems (TPMS)

6. Leading Manufacturers and Products

ManufacturerProductKey Features
Texas InstrumentsTRF37226 GHz IQ demodulator for software radios
Analog DevicesADL5387High-linearity demodulator for DOCSIS 3.1
NXP SemiconductorsMRD2100UHF RFID demodulator for logistics
STMicroelectronicsSTW7760Multi-standard demodulator for IoT devices

7. Selection Guide

Key considerations: - Match frequency range with system requirements - Balance dynamic range vs. power consumption - Evaluate integration level (discrete vs. SoC) - Consider package size for PCB constraints - Verify compliance with industry standards (ETSI, FCC) - Example: For RFID readers, prioritize high sensitivity (-90 dBm+) and protocol compatibility (ISO18000-63)

8. Industry Trends

Current developments include: - mmWave demodulation for 28/39 GHz 5G bands - AI-enhanced digital demodulation algorithms - Ultra-low-power wake-up receivers (<10 A) - Optical RF demodulation for photonic systems - RISC-V integrated demodulation SoCs The global market is projected to grow at 7.2% CAGR through 2030 driven by IoT and 5G deployments.

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