RF Demodulators

Category Introduction

RF Demodulators are devices designed to extract a signal from a modulated waveform, one that has been changed with the use of a frequency, amplitude, phase, amplifier or shifter.

Product List

227 Items
PDF Mfr Part # Quantity
Available
UnitPrice RFQ Series Packaging Product StatusFunctionLO FrequencyRF FrequencyP1dBGainNoise FigureCurrent - SupplyVoltage - SupplyMounting TypePackage / CaseSupplier Device Package
ADL5387ACPZ-R7
ADL5387ACPZ-R7
RF DEMOD IC 30MHZ-2GHZ 24LFCSP
Analog Devices Inc.
29 $12.66
Tape & Reel (TR) ActiveDemodulator100MHz ~ 4GHz30MHz ~ 2GHz12.8dBm3.8dB16.5dB180 mA4.75V ~ 5.25VSurface Mount24-VFQFN Exposed Pad, CSP24-LFCSP-VQ (4x4)
ADL5380ACPZ-R7
ADL5380ACPZ-R7
RF DEMOD IC 400MHZ-6GHZ 24LFCSP
Analog Devices Inc.
3 $12.74
Tape & Reel (TR) ActiveDemodulator400MHz ~ 6GHz400MHz ~ 6GHz11.6dBm6.9dB10.9dB245 mA4.75V ~ 5.25VSurface Mount24-WFQFN Exposed Pad, CSP24-LFCSP (4x4)
AD8347ARUZ-REEL7
AD8347ARUZ-REEL7
RF DEMOD IC 800MZ-2.7GHZ 28TSSOP
Analog Devices Inc.
10 $14.12
Tape & Reel (TR) ActiveDemodulator800MHz ~ 2.7GHz800MHz ~ 2.7GHz-30dBm39.5dB11dB80 mA2.7V ~ 5.5VSurface Mount28-TSSOP (0.173", 4.40mm Width)28-TSSOP
LMX8410RGZT
LMX8410RGZT
RF DEMOD IC 4GHZ-10GHZ 48VQFN
Texas Instruments
4 $85.43
Tape & Reel (TR) ActiveDemodulator, Amplifier4GHz ~ 10GHz4GHz ~ 10GHz12dBm11dB19dB650 mA3.15V ~ 3.45V, 4.75V ~ 5.25VSurface Mount48-VFQFN Exposed Pad48-VQFN (7x7)
LT5546EUF#TRPBF
LT5546EUF#TRPBF
RF DEMOD IC 40MHZ-500MHZ 16QFN
Analog Devices Inc.
3 $8.83
Tape & Reel (TR) ActiveDemodulator80MHz ~ 1GHz40MHz ~ 500MHz-10dBm-7.8dB24 mA1.8V ~ 5.25VSurface Mount16-WQFN Exposed Pad16-QFN (4x4)
LT5515EUF#PBF
LT5515EUF#PBF
RF DEMOD IC 1.5GHZ-2.5GHZ 16QFN
Analog Devices Inc.
26 $10.28
Tube ActiveDemodulator1.5GHz ~ 2.5GHz1.5GHz ~ 2.5GHz9dBm-0.7dB16.8dB160 mA4V ~ 5.25VSurface Mount16-WQFN Exposed Pad16-QFN (4x4)
LC72725KMA-UM-AH
LC72725KMA-UM-AH
RDS DEMODULATION IC
onsemi
2,016 $0.39
Bulk Active-----------
LC72725KV-UMTI-TLM-E
LC72725KV-UMTI-TLM-E
RDS (RBDS) DEMODULATION IC
Sanyo
2,344 $0.42
Bulk Active-----------
LC72725NV-TLM-E
LC72725NV-TLM-E
RDS DEMODULATION IC
Sanyo
777 $0.57
Bulk Active-----------
LC72725KMA-AH
LC72725KMA-AH
RDS DEMODULATION IC
onsemi
667 $0.80
Bulk Active-----------
HSP50306SC-27
HSP50306SC-27
DIGITAL QPSK DEMODULATOR
Intersil
131 $2.94
Bulk Active-----------
HSP50306SC-2796
HSP50306SC-2796
DIGITAL QPSK DEMODULATOR
Harris Corporation
166 $2.96
Bulk ActiveDemodulator------4.75V ~ 5.25VSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
HSP50306SC-25
HSP50306SC-25
DIGITAL QPSK DEMODULATOR
Intersil
301 $2.93
Bulk Active-----------
MAX2309EGI-B50070
MAX2309EGI-B50070
CDMA IF VGA AND I/Q DEMODULATOR
Analog Devices Inc./Maxim Integrated
158 $4.27
Bulk Active-----------
UPD61541GB-YEU-A
UPD61541GB-YEU-A
OFDM DEMODULATION FOR STB
Renesas Electronics America Inc
210 $4.42
Bulk Active-----------
MAX2314EEI
MAX2314EEI
CDMA IF VGA AND I/Q DEMODULATOR
Analog Devices Inc./Maxim Integrated
177 $4.50
Bulk Active-----------
MAX2308EGI
MAX2308EGI
CDMA IF VGA AND I/Q DEMODULATOR
Analog Devices Inc./Maxim Integrated
129 $4.66
Bulk Active-----------
MAX2314EEI+
MAX2314EEI+
CDMA IF VGA AND I/Q DEMODULATOR
Analog Devices Inc./Maxim Integrated
69 $6.27
Bulk Active-----------
LC72722PMS-TLM-E
LC72722PMS-TLM-E
SINGLE-CHIP RDS SIGNAL PROCESSOR
Sanyo
73 $7.28
Bulk Obsolete----31dB-9 mA4.5V ~ 5.5VSurface Mount24-SOIC (0.311", 7.90mm Width)24-MFP
MAX2309EGI
MAX2309EGI
CDMA IF VGA AND I/Q DEMODULATOR
Analog Devices Inc./Maxim Integrated
54 $8.25
Bulk Active-----------

About RF Demodulators

What are RF Demodulators?

RF Demodulators

RF demodulators are essential components in radio frequency (RF) communication systems, responsible for converting modulated RF signals into baseband signals that can be processed by electronic devices. They work by extracting the original information signal from a carrier wave, which has been modulated to carry data over long distances. The basic operating principle involves detecting changes in amplitude, frequency, or phase of the incoming RF signal and translating these variations back into the original audio, video, or data signals. This process is crucial for enabling clear and accurate transmission and reception of information in wireless communication systems.

Types of RF Demodulators

1. Amplitude Demodulators

Amplitude demodulators are designed to recover information from amplitude-modulated (AM) signals. They are commonly used in AM radio receivers, where they detect variations in signal strength to reproduce audio signals. These demodulators are characterized by their simplicity and cost-effectiveness, making them suitable for applications where high fidelity is not a primary concern.

2. Frequency Demodulators

Frequency demodulators are used to decode frequency-modulated (FM) signals. They are widely employed in FM radio and television broadcasting, where they convert frequency variations into audio or video signals. These demodulators offer superior noise immunity and are ideal for applications requiring high-quality sound and image reproduction.

3. Phase Demodulators

Phase demodulators are utilized in systems that use phase modulation (PM) or phase-shift keying (PSK). They are integral to digital communication systems, such as satellite and cellular networks, where they decode phase variations to retrieve digital data. These demodulators are known for their precision and ability to handle complex signal structures.

4. Quadrature Demodulators

Quadrature demodulators are specialized devices that simultaneously demodulate both amplitude and phase information from a signal. They are essential in complex modulation schemes like quadrature amplitude modulation (QAM) and are used in advanced communication systems, including digital television and broadband internet services.

How to choose RF Demodulators?

When selecting RF demodulators, several key parameters should be considered:

  • Frequency Range: Ensure the demodulator supports the frequency range of your application.
  • Modulation Type: Choose a demodulator compatible with the modulation scheme used in your system.
  • Noise Figure: Opt for a demodulator with a low noise figure to enhance signal clarity.
  • Linearity: High linearity is crucial for maintaining signal integrity, especially in high-performance applications.
  • Power Consumption: Consider energy-efficient models for battery-powered or portable devices.

Evaluating product quality and reliability involves reviewing supplier certifications, customer reviews, and conducting performance tests. Environmental factors, such as temperature and humidity, should also be considered, along with installation requirements like size constraints and compatibility with existing systems.

Applications of RF Demodulators

1. Telecommunications

In the telecommunications industry, RF demodulators are pivotal in cellular networks, satellite communications, and broadband internet services. They enable the conversion of RF signals into digital data, facilitating voice, video, and data transmission over long distances with minimal loss of quality.

2. Broadcasting

RF demodulators are extensively used in radio and television broadcasting. They decode AM and FM signals to deliver clear audio and video content to consumers. Their ability to handle high-frequency signals ensures consistent and reliable broadcast quality.

3. Aerospace and Defense

In aerospace and defense, RF demodulators are crucial for radar systems, communication links, and electronic warfare. They provide accurate signal processing capabilities, essential for mission-critical applications where precision and reliability are paramount.

4. Consumer Electronics

Consumer electronics, such as smartphones, tablets, and smart TVs, rely on RF demodulators to receive and process wireless signals. These devices require compact and efficient demodulators to ensure seamless connectivity and high-quality media playback.

5. Industrial Automation

In industrial automation, RF demodulators facilitate wireless communication between machines and control systems. They enable real-time data exchange, enhancing operational efficiency and enabling remote monitoring and control of industrial processes.