RF Transmitters

Image Part Number Description / PDF Quantity Rfq
TXM-433-LC

TXM-433-LC

Linx Technologies

RF TX IC ASK/OOK 433MHZ 8SMD MOD

283

TXM-315-LC

TXM-315-LC

Linx Technologies

RF TX IC ASK/OOK 315MHZ 8SMD MOD

0

TXM-900-HP3SPO

TXM-900-HP3SPO

Linx Technologies

RF TX IC FM/FSK 902-928MHZ 24SMD

30

TXM-315-LR

TXM-315-LR

Linx Technologies

RF TX IC ASK/OOK 315MHZ 8SMD MOD

2084

TXM-418-LC

TXM-418-LC

Linx Technologies

RF TX IC ASK/OOK 418MHZ 8SMD MOD

71

TXM-315-KH3

TXM-315-KH3

Linx Technologies

RF TX IC ASK 315MHZ 27SMD MOD

0

TXM-418-KH3

TXM-418-KH3

Linx Technologies

RF TX IC ASK 418MHZ 27SMD MOD

129

TXM-433-LR

TXM-433-LR

Linx Technologies

RF TX IC ASK/OOK 433MHZ 8SMD MOD

1451

TXM-418-LR

TXM-418-LR

Linx Technologies

RF TX IC ASK/OOK 418MHZ 8SMD MOD

0

TXM-433-KH3

TXM-433-KH3

Linx Technologies

RF TX IC ASK 433MHZ 27SMD MOD

60

TXE-418-KH2

TXE-418-KH2

Linx Technologies

RF TX IC ASK 418MHZ 24SMD MOD

0

TXM-900-HP3-PPO

TXM-900-HP3-PPO

Linx Technologies

RF TX IC FM/FSK 902-928MHZ 10SIP

0

TXM-900-HP3-PPS

TXM-900-HP3-PPS

Linx Technologies

RF TX IC FM/FSK 902-928MHZ 10SIP

0

TXE-315-KH2

TXE-315-KH2

Linx Technologies

RF TX IC ASK 315MHZ 24SMD MOD

0

TXE-418-KH

TXE-418-KH

Linx Technologies

RF TX IC ASK 418MHZ 24SMD MOD

0

TXE-433-KH

TXE-433-KH

Linx Technologies

RF TX IC ASK 433.92MHZ 24SMD MOD

0

TXE-433-KH2

TXE-433-KH2

Linx Technologies

RF TX IC ASK 433.92MHZ 24SMD MOD

0

TXM-916-ES

TXM-916-ES

Linx Technologies

RF XMITTER FM/FSK 916MHZ MODULE

0

TXM-869-ES

TXM-869-ES

Linx Technologies

RF XMITTER FM/FSK 869MHZ MODULE

0

TXM-900-HP3-SPS

TXM-900-HP3-SPS

Linx Technologies

RF TX IC FM 902-928MHZ 24SMD MOD

0

RF Transmitters

1. Overview

RF (Radio Frequency) transmitters are electronic devices that generate and transmit high-frequency electromagnetic waves for wireless communication. IF (Intermediate Frequency) components process signals at intermediate stages in transceivers. RFID (Radio Frequency Identification) RF transmitters specifically enable contactless data exchange between tags and readers. These technologies form the backbone of modern wireless systems, supporting applications from mobile communications to IoT networks.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
ISM Band TransmittersUnlicensed operation at 2.4 GHz/900 MHzWi-Fi routers, Bluetooth devices
Cellular Transmitters5G/LTE protocol support with power controlSmartphones, base stations
UHF RFID Readers860-960 MHz frequency agilityWarehouse inventory systems
HF RFID Modules13.56 MHz contactless payment supportAccess control terminals

3. Structure and Components

Typical RF transmitter architecture includes: Power Amplifier (PA) for signal boosting, Voltage-Controlled Oscillator (VCO) for frequency generation, modulator for data encoding, impedance matching networks, and antenna interfaces. Advanced systems integrate DSP cores for digital modulation (QAM, OFDM) and temperature-compensated crystal oscillators (TCXO) for stability. RFID variants add protocol-specific encoding circuits and impedance-tuned front-ends.

4. Key Technical Specifications

ParameterSignificance
Frequency Range: 300 MHz - 6 GHzDetermines application compliance (e.g., FCC Part 15.247)
Output Power: 0.1 - 30 dBmAffects transmission distance and regulatory class
Modulation Accuracy: EVM < 5%Ensures data integrity in dense environments
Current Consumption: 5-100 mABattery life consideration for IoT devices

5. Application Fields

  • Telecommunications: 5G small cells, satellite modems
  • Logistics: UHF RFID for supply chain tracking
  • Healthcare: Medical implant telemetry systems
  • Retail: NFC payment terminals (13.56 MHz HF RFID)

Case Study: Amazon's warehouse robots use 868 MHz RFID readers for real-time inventory with 5 cm accuracy.

6. Leading Manufacturers and Products

VendorRepresentative Product
TI (Texas Instruments)CC1352P7 multi-band wireless MCU
Nordic SemiconductornRF52840 Bluetooth 5.3 SoC
ImpinjR420 UHF Gen2 RFID reader
STMicroelectronicsCR95HF NFC/RFID transceiver

7. Selection Guidelines

  • Determine regulatory requirements (FCC/ETSI compliance)
  • Match frequency to use case (e.g., 900 MHz for liquid penetration)
  • Evaluate environmental factors (temperature, interference)
  • Assess protocol compatibility (LoRaWAN, BLE 5.4)
  • Optimize power vs. range trade-offs

8. Industry Trends

Key developments include: - 5G integration with sub-6 GHz RF front-ends - RFID moving to microwave frequencies (2.45 GHz active tags) - AI-enhanced spectrum sensing for dynamic frequency selection - Miniaturization via SiP (System-in-Package) technology - Energy harvesting transmitters for battery-free IoT

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