RF Modulators

Category Introduction

Radio Frequency (RF) modulator products are used to encode information onto a sinusoidal carrier signal by altering the carrier's amplitude, phase, and/or frequency. A receiving device performing the inverse, demodulation operation selectively receives an incoming signal at a desired carrier frequency, translating variations in carrier wave attributes back into its original form. Such an arrangement allows use of a communications channel for simultaneous transmission of multiple messages without interference between them.

Product List

669 Items

Mfr Part #	Quantity Available	UnitPrice	Packaging	Product Status	Function	LO Frequency	RF Frequency	P1dB	Noise Floor	Output Power	Current - Supply	Voltage - Supply	Test Frequency	Package / Case
AD8345AREZ-RL7 RF MODULATOR 140MHZ-1GHZ 16TSSOP Analog Devices Inc.	57	$11.95	Tape & Reel (TR)	Active	Modulator	140MHz ~ 1GHz	140MHz ~ 1GHz	2.5dBm	-155dBm/Hz	2dBm	78 mA	2.7V ~ 5.5V	800MHz	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
ADL5375-05ACPZ-R7 RF MODULATOR 400MHZ-6GHZ 24WFQFN Analog Devices Inc.	69	$11.83	Tape & Reel (TR)	Active	Modulator	400MHz ~ 6GHz	400MHz ~ 6GHz	10.4dBm	-157.6dBm/Hz	1.71dBm	200 mA	4.75V ~ 5.25V	3.5GHz	24-WFQFN Exposed Pad, CSP
TRF3722IRGZR RF MODULATOR 400MHZ-4.2GHZ 48QFN Texas Instruments	30	$16.11	Tape & Reel (TR)	Active	Modulator	750MHz ~ 3.6GHz	400MHz ~ 4.2GHz	13dBm	-156dBm/Hz	1dBm	374 mA	3V ~ 5.5V	1.8GHz	48-VFQFN Exposed Pad
TRF370417IRGET RF MODULATOR 50MHZ-6GHZ 24VFQFN Texas Instruments	18	$22.03	Tape & Reel (TR)	Active	Modulator	50MHz ~ 6GHz	50MHz ~ 6GHz	12dBm	-162dBm/Hz	-	205 mA	4.5V ~ 5.5V	2.14GHz	24-VFQFN Exposed Pad
AD8346ARUZ-REEL7 RF MODULTR 800MHZ-2.5GHZ 16TSSOP Analog Devices Inc.	95	$10.55	Tape & Reel (TR)	Active	Modulator	800MHz ~ 2.5GHz	800MHz ~ 2.5GHz	-3dBm	-147dBm/Hz	-6dBm	55 mA	2.7V ~ 5.5V	1.9GHz	16-TSSOP (0.173", 4.40mm Width)
CMX993Q3 RF (I/Q) QUADRATURE MODULATOR CML Microcircuits	64	$9.88	Tray	Active	Modulator	60MHz ~ 2GHz	30MHz ~ 1GHz	8dBm	-155dBm/Hz	3dBm	-	3V ~ 3.6V	-	48-VFQFN Exposed Pad
TRF3705IRGET RF MODULATOR 300MHZ-4GHZ 24VFQFN Texas Instruments	59	$12.17	Tape & Reel (TR)	Active	Modulator	300MHz ~ 4GHz	300MHz ~ 4GHz	13.7dBm	-160dBm/Hz	7.1dBm	306 mA	3.15V ~ 3.6V	1.85GHz	24-VFQFN Exposed Pad
CMX993WQ3 WIDEBAND RF (I/Q) MODULATOR CML Microcircuits	16	$10.75	Tray	Active	Modulator	60MHz ~ 2GHz	30MHz ~ 1GHz	8dBm	-155dBm/Hz	3dBm	-	3V ~ 3.6V	-	48-VFQFN Exposed Pad
LM3291TME/NOPB RF MODULATOR 12WFBGA/DSBGA Texas Instruments	130	$3.21	Tape & Reel (TR)	Not For New Designs	Modulator	-	-	-	-	-	-	-	-	12-WFBGA, DSBGA
LM3290TME/NOPB RF MODULATOR 30WFBGA/DSBGA Texas Instruments	159	$3.37	Tape & Reel (TR)	Not For New Designs	Modulator	-	-	-	-	-	-	2.5V ~ 5V	-	30-WFBGA, DSBGA
LA7058R-C-E RF MODULATOR IC onsemi	2,747	$0.21	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA7161V-A-TLM-E VHF BAND RF MODULATOR Sanyo	1,357	$0.41	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA7161BV-TLM-E-ON VHF BAND RF MODULATOR onsemi	870	$0.43	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA7161BV-TLM-E VHF BAND RF MODULATOR Sanyo	315	$0.43	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA77000V-TLM-E-ON VHF BAND RF MODULATOR onsemi	238	$0.74	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA77000V-A-TLM-E-SA VHF BAND RF MODULATOR Sanyo	228	$0.74	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA77000V-TLM-E VHF BAND RF MODULATOR Sanyo	862	$0.75	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA77000V-MPB-E RF MODULATOR IC onsemi	1,163	$0.75	Bulk	Active	-	-	-	-	-	-	-	-	-	-
LA77000V-A-MPB-E RF MODULATOR IC onsemi	1,169	$0.75	Bulk	Active	-	-	-	-	-	-	-	-	-	-
MAX2566EGM MAX2566 MODULATOR/DEMODULATOR Analog Devices Inc./Maxim Integrated	852	$1.05	Bulk	Active	-	-	-	-	-	-	-	-	-	-

About RF Modulators

What are RF Modulators?

RF Modulators

RF Modulators are electronic devices that convert baseband signals, such as audio and video, into radio frequency (RF) signals. This conversion allows the signals to be transmitted over coaxial cables or through the air, making them suitable for broadcast and communication applications. The basic operating principle involves mixing the input signal with a carrier frequency, resulting in an output that can be tuned to a specific channel or frequency band. RF Modulators are essential in bridging the gap between different types of media and communication technologies, enabling seamless integration and transmission.

Types of RF Modulators

Analog RF Modulators

Analog RF Modulators are traditionally used in older television systems and basic communication setups. They modulate analog signals onto a carrier frequency, allowing for the transmission of audio and video signals over RF channels. These modulators are characterized by their simplicity and cost-effectiveness, making them suitable for applications where high fidelity is not a primary concern.

Digital RF Modulators

Digital RF Modulators are designed to handle digital signals, providing higher quality and more efficient transmission. They are commonly used in modern broadcasting systems, such as digital television and radio. These modulators support various digital modulation schemes like QAM and OFDM, offering improved bandwidth utilization and signal integrity.

Wideband RF Modulators

Wideband RF Modulators are capable of handling a broad range of frequencies, making them versatile for various applications. They are often used in satellite communication and broadband cable systems, where multiple channels need to be transmitted simultaneously. Their ability to support a wide frequency range makes them ideal for complex and high-capacity systems.

How to choose RF Modulators?

When selecting an RF Modulator, several key parameters should be considered:

Frequency Range: Ensure the modulator supports the required frequency bands for your application.
Modulation Type: Choose between analog or digital modulation based on the signal type and quality requirements.
Output Power: Consider the power output needed for effective signal transmission over the desired distance.
Compatibility: Ensure compatibility with existing systems and devices to avoid integration issues.
Environmental Factors: Evaluate the operating temperature range and resistance to environmental conditions like humidity and dust.

To assess product quality and reliability, review supplier certifications, customer reviews, and warranty offerings. Installation requirements should also be considered, including space constraints and power supply needs.

Applications of RF Modulators

Broadcasting Industry

In the broadcasting industry, RF Modulators are used to transmit television and radio signals over the airwaves. They enable the conversion of audio and video content into RF signals that can be received by televisions and radios, facilitating widespread content distribution.

Telecommunications

RF Modulators play a crucial role in telecommunications by enabling the transmission of voice and data signals over various communication channels. They are used in both wired and wireless communication systems, ensuring efficient and reliable signal delivery.

Consumer Electronics

In consumer electronics, RF Modulators are often found in devices like VCRs, DVD players, and gaming consoles. They allow these devices to connect to televisions without direct AV inputs, enabling users to enjoy multimedia content on older TV models.

Security and Surveillance

Security and surveillance systems utilize RF Modulators to transmit video feeds from cameras to monitoring stations. This allows for real-time surveillance over large areas, enhancing security and monitoring capabilities.

Satellite Communication

In satellite communication, RF Modulators are used to modulate signals for transmission to and from satellites. They ensure that data is efficiently transmitted over long distances, supporting global communication networks.