RF Transmitters

Image Part Number Description / PDF Quantity Rfq
PMA7105XUMA1

PMA7105XUMA1

IR (Infineon Technologies)

8-BIT FLASH MCU, 12MHZ

89806

TDK5101FHTMA1

TDK5101FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 311-317MHZ 10TFSOP

239

TDA7100HTMA1

TDA7100HTMA1

IR (Infineon Technologies)

RF TX IC ASK 433-435MHZ 10TFSOP

6724

TDK5116FHTMA1

TDK5116FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 866-870MHZ 10TFSOP

0

TDK5100FHTMA1

TDK5100FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 433-435MHZ 10TFSOP

5236

RX984XUMA1

RX984XUMA1

IR (Infineon Technologies)

RF TRANSMITTER 28TSSOP

0

PMA7106XUMA1

PMA7106XUMA1

IR (Infineon Technologies)

8-BIT FLASH MCU, 12MHZ

36833

TDA5101

TDA5101

IR (Infineon Technologies)

RF TX IC ASK/FSK 315MHZ 16TSSOP

466

TDA7110FHTMA1

TDA7110FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 433-435MHZ 10TFSOP

479

TDK5110FHTMA1

TDK5110FHTMA1

IR (Infineon Technologies)

RF TX IC ASK/FSK 434MHZ 10TFSOP

2782

PMA7106

PMA7106

IR (Infineon Technologies)

8-BIT FLASH MCU, 8051 CPU, 12MHZ

0

TDK5111FHTMA1

TDK5111FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 314-317MHZ 10TFSOP

0

TDA7116FHTMA1

TDA7116FHTMA1

IR (Infineon Technologies)

RF TX IC ASK 866-870MHZ 10TFSOP

5000

PMA7105

PMA7105

IR (Infineon Technologies)

8-BIT FLASH MCU, 8051 CPU, 12MHZ

0

TDK5110GEG

TDK5110GEG

IR (Infineon Technologies)

ASK/FSK TRANSMITTE 868/433 MHZ

0

RX98-3

RX98-3

IR (Infineon Technologies)

RF TRANSMITTER

24745

RX983XUMA1

RX983XUMA1

IR (Infineon Technologies)

RF TRANSMITTER 28TSSOP

0

TDA7110XUMA1

TDA7110XUMA1

IR (Infineon Technologies)

RF TX IC ASK 433-435MHZ 16TSSOP

0

TDA5100XUMA1

TDA5100XUMA1

IR (Infineon Technologies)

RF TX IC ASK 433-435MHZ 16TSSOP

0

TDA5103AHTMA1

TDA5103AHTMA1

IR (Infineon Technologies)

RF TX IC ASK/FSK 345MHZ 10TFSOP

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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