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What is a Modulator / Demodulator?

A radio frequency modulator (or RF modulator) takes a baseband input signal and then outputs a radio frequency modulated signal. This is often a preliminary step in signal transmission, either by antenna or to another device such as a television.

A demodulator is a circuit that is used in amplitude modulation and frequency modulation receivers in order to separate the information that was modulated onto the carrier from the carrier itself. A demodulator is the analog part of the modulator. A modulator puts the information onto a carrier wave at the transmitter end and then a demodulator pulls it so it can be processed and used on the receiver end.

Types of Modulators / Demodulators

There are many different kinds of modulators / demodulators. At Future Electronics we stock many of the most common types categorized by supply voltage, operating frequency, signal-to-noise-ratio, packaging type and power dissipation. The parametric filters on our website can help refine your search results depending on the required specifications.

The most common sizes for power dissipation are 33 mW and 200 mW. We also carry modulators / demodulators with power dissipation up to 600 mW. Operating frequency can range from 455 kHz to 2500 MHz, with the most common ranges being 460 to 880 kHz and 1 to 100 MHz.

Modulators / Demodulators from Future Electronics

Future Electronics has a full selection of the best modulators / demodulators from several manufacturers that can be used for a modulator / demodulator circuit such as an rf modulator / demodulator, balanced modulator / demodulator circuit, HD RF modulator / demodulator or digital radio frequency modulator / demodulator. Simply choose from the modulator / demodulator technical attributes below and your search results will quickly be narrowed in order to match your specific modulator / demodulator application needs.

If you have a preferred brand, we deal with several manufacturers such as Digi International, Freescale Semiconductor, Hittite Microwave, New Japan Radio, NXP, STMicroelectronics or ON Semiconductor. You can easily refine your modulator / demodulator product search results by clicking your preferred modulator / demodulator brand below from our list of manufacturers.

Applications for Modulators / Demodulators:

Modulators / demodulators can be found in aerospace and defense, wireless, and broadband communications applications. Amplitude modulation (AM) and frequency modulation (FM) are used to carry information on a carrier. FM offers greater clarity for audio, and a wider bandwidth. One application where FM and digital are not suitable is aviation communications, which still uses AM. The reason is because weaker signals can be heard over stronger, closer ones with amplitude modulation, allowing for emergency transmissions to have a better chance of being heard over other traffic. AM uses a narrower bandwidth than FM. This is important for lower radio frequencies, where space is costly.

Choosing the Right Modulator / Demodulator:

When you are looking for the best modulators / demodulators for your application, with the parametric search, you can filter the results by various attributes: by Power Dissipation (33 mW, 200 mW, 300 mW,…), Supply Voltage (1.6 V to 30 V) and Operating Frequency Range (from 455 kHz to 2500 MHz) to name a few. You will be able to find the right circuit for your balanced modulator / demodulator circuit, RF modulator / demodulator, digital radio frequency modulator / demodulator or HD RF modulator / demodulator.

Modulators / Demodulators in Production Ready Packaging or R&D Quantities

If the quantity of modulators / demodulators that you require is less than a full reel, we offer customers many of our modulator / demodulator products in tube, tray or individual quantities that will help you avoid unneeded surplus.

In addition, Future Electronics offers clients a unique bonded inventory program that is designed to eliminate potential problems that could arise from an unpredictable supply of products containing raw metals and products with long or erratic lead times. Talk with your nearest Future Electronics branch and find out more on how you and your company can avoid possible shortages.

Modulators / Demodulators by Primary Attributes:

By Supply Voltage

By S/N Ratio-Nom (FM)

By Power Dissipation

Featured Modulator / Demodulator Products

Manufacturer Part Number Description
Digi International DG-M10 Digi Connect M10 Sat modem UART 3.3 V
Freescale Semiconductor MC44CM373CASEF MC44CM373 Series 460 - 880 MHz 3.3 V 80 mA RF Modulator - SOIC-16
Freescale Semiconductor MC44CM373CASEF MC44CM373 Series 3.3 V 880 MHz Audio/Video RF CMOS Modulator - SOIC-16
Hittite Microwave HMC497LP4ETR HMC497 Series 0.1 - 4 GHz SiGe Wideband Direct Modulator - QFN-24
Hittite Microwave HMC597LP4ETR HMC597 Series 0.1 - 4.0 GHz SiGe Wideband Direct Demodulator SMT - QFN-24
Hittite Microwave HMC496LP3ETR HMC496 Series 4 - 7 GHz SiGe Wideband Direct Modulator - QFN-16
New Japan Radio NJM2590V-TE1 NJM2590 Series 455 kHz Surface Mount Low Current FM IF Demodulator - SSOP-14
NXP ACLRC63201T/0FE,112 CLRC632 Series Multiple Protocol Contactless Reader IC (MIFARE/I-CODE1)
NXP SLRC40001T/OFE,112 SLRC400 Series Parallel - I2C Interface ICODE Reader - SOIC-32
NXP TDA8296HN/C1,551 TDA8296 Szeries Digital Global Standard Low IF Demodulator - HVQFN-40
ON Semiconductor MC1496DR2G MC1496 Series 10 MHz 12 V 33 mW Balanced Modulators / Demodulators - SOIC-14
ON Semiconductor MC1496DR2G MC1496 Series 10 MHz 12 V 33 mW Balanced Modulators / Demodulators - SOIC-14
ON Semiconductor MC1496DG MC1496 Series 10 MHz 12 V 33 mW Balanced Modulators / Demodulators - SOIC-14
ON Semiconductor MC1496BDR2G MC1496B Series 12 V 33 mW Balanced Modulator and Demodulator - SOIC-14
ON Semiconductor MC1496BPG MC1496B Series 300 MHz Through Hole Balanced Modulators/Demodulator - DIP-14
ON Semiconductor MC1496PG MC1496 Series 10 MHz 12 V 33 mW Balanced Modulators / Demodulators - PDIP-14
STMicroelectronics TDA7333N TDA7333N Series 3.6 V 14 mA SMT RDS/RBDS Processor - TSSOP-16

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