Structured Manufacturing Data (2026)

RF/IR Transmitter IC

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard RF/IR Transmitter IC used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical RF/IR Transmitter IC is characterized by the integration of Oscillator Circuit and Modulator. In industrial production environments, manufacturers listed on CNFX commonly emphasize Silicon (semiconductor substrate) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An integrated circuit designed to generate and modulate RF or infrared signals for wireless transmission.

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Product Specifications

Technical details and manufacturing context for RF/IR Transmitter IC

Definition
A specialized integrated circuit that serves as the core signal generation and modulation component within a wireless transmitter system, converting electrical signals into radio frequency (RF) or infrared (IR) carrier waves for transmission through antennas or IR emitters.
Working Principle
The IC typically contains an oscillator circuit to generate a carrier frequency (RF or IR range), a modulator to encode data onto the carrier (using techniques like ASK, FSK, or PWM), and output driver stages to amplify the signal for transmission. For RF, it interfaces with an antenna; for IR, it drives an LED or laser diode.
Common Materials
Silicon (semiconductor substrate), Copper (interconnects), Plastic or ceramic (packaging)
Technical Parameters
  • Operating frequency range (e.g., 315 MHz for RF, 850-950 nm for IR) (MHz/GHz or nm) Standard Spec
Components / BOM
  • Oscillator Circuit
    Generates the base carrier frequency signal
    Material: Semiconductor (transistors, capacitors)
  • Modulator
    Encodes input data onto the carrier wave
    Material: Semiconductor logic gates
  • Power Amplifier
    Boosts signal strength for transmission
    Material: Semiconductor power transistors
  • Package Pins Part
    Electrical connections to external circuits
    Material: Copper alloy with plating

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for RF/IR Transmitter IC.

Wireless Transmitter Chip RF/IR TX IC low power RF transmitter integrated circuit infrared signal modulation IC for remote controls wireless transmitter chip for consumer electronics surface mount RF IC for optical product manufacturing high frequency oscillator circuit transmitter I

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Wireless Transmitter
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: 1.8V to 5.5V supply range
temperature: -40°C to +85°C (operating), -55°C to +125°C (storage)
output power: Up to +10 dBm (adjustable)
frequency range: 300 MHz to 2.4 GHz (RF) / 30 kHz to 56 kHz (IR)
modulation support: ASK, FSK, OOK, PWM
Media Compatibility
✓ Indoor air environments ✓ Consumer electronics housings ✓ Automotive cabin applications
Unsuitable: High-moisture or condensing environments without conformal coating
Sizing Data Required
  • Required transmission frequency
  • Desired modulation scheme and data rate
  • Target transmission distance and output power

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal degradation
Cause: Overheating due to poor heat dissipation or excessive power input leading to semiconductor junction failure
Signal integrity loss
Cause: Electromagnetic interference (EMI) or physical damage to antenna/transmission lines disrupting RF/IR signal transmission
Maintenance Indicators
  • Intermittent or weak signal output despite normal power supply
  • Abnormal heating or thermal runaway detected during operation
Engineering Tips
  • Implement proper heat sinking and thermal management with regular cleaning of cooling surfaces
  • Use shielded enclosures and follow EMI/RFI best practices during installation and routing

Compliance & Manufacturing Standards

Reference Standards
IEC 60747-14-1: Semiconductor devices - Part 14-1: Radio-frequency and microwave devices ISO 9001:2015 Quality management systems CE marking for electromagnetic compatibility (EMC) under Directive 2014/30/EU
Manufacturing Precision
  • Output frequency stability: +/- 0.5% over operating temperature range
  • Output power variation: +/- 1.5 dB across production batch
Quality Inspection
  • RF output spectrum analysis for spurious emissions
  • Environmental stress screening (ESS) including temperature cycling and humidity testing

Factories Producing RF/IR Transmitter IC

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the typical applications for this RF/IR transmitter IC?

This IC is commonly used in remote controls, wireless sensors, security systems, automotive keyless entry, and industrial automation where reliable RF or infrared signal transmission is required.

What packaging options are available for this transmitter IC?

The IC is available in both plastic (SOIC, QFN) and ceramic (DIP, LCC) packages to suit different thermal and environmental requirements in electronic manufacturing applications.

How does the modulator circuit function in this transmitter IC?

The integrated modulator circuit encodes digital data onto the carrier frequency (RF or infrared) using techniques like ASK, FSK, or PWM modulation, ensuring accurate wireless signal transmission with minimal interference.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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