RF Transmitters

Image Part Number Description / PDF Quantity Rfq
TH7107EFC

TH7107EFC

Melexis

RF TX IC ASK 310-450MHZ 16SSOP

0

ATA8402C-6AQY 66

ATA8402C-6AQY 66

Roving Networks / Microchip Technology

RF TX IC ASK 429-439MHZ 8TSSOP

0

RFM119W-433S1

RFM119W-433S1

RF Solutions

RF TX IC FSK/GFSK 433MHZ MODULE

0

SI4712-B30-GMR

SI4712-B30-GMR

Silicon Labs

RF XMITTER FM 76-108MHZ 20UFQFN

0

SI4010-B1-GS

SI4010-B1-GS

Silicon Labs

RF TX IC FSK 27-960MHZ 14SOIC

0

TRF4900PWR

TRF4900PWR

Texas Instruments

RF TX IC FSK 850-950MHZ 24TSSOP

0

PCF7900VHN/C0L/UJ

PCF7900VHN/C0L/UJ

NXP Semiconductors

FRACTIONAL-N-PLL BASED UHF TRANS

0

ATA6286N-PNQW 19

ATA6286N-PNQW 19

Roving Networks / Microchip Technology

RF TX IC ASK/FSK 433MHZ 32VFQFN

0

T5750C-6AQJ-66

T5750C-6AQJ-66

Roving Networks / Microchip Technology

RF TX IC ASK 868-928MHZ 8TSSOP

0

TH72035KLD-BAA-000-TU

TH72035KLD-BAA-000-TU

Melexis

RF TX IC ASK 868/915MHZ 10VFDFN

0

HMC6000-SX

HMC6000-SX

Analog Devices, Inc.

RF TRANSMITTER 57-64GHZ DIE

0

TH72016KLD-CAA-000-TU

TH72016KLD-CAA-000-TU

Melexis

RF TX IC ASK 380-450MHZ 10VFDFN

0

TH72005KLD-BAA-000-TU

TH72005KLD-BAA-000-TU

Melexis

RF TX IC ASK/FSK 315MHZ 10VFDFN

0

MAX7057ASE+T

MAX7057ASE+T

Maxim Integrated

RF TX IC ASK 300-450MHZ 16SOIC

0

T5753-6APJ

T5753-6APJ

Roving Networks / Microchip Technology

RF TX IC ASK 310-350MHZ 8TSSOP

0

TXE-433-KH

TXE-433-KH

Linx Technologies

RF TX IC ASK 433.92MHZ 24SMD MOD

0

SI4022-A1-FT

SI4022-A1-FT

Silicon Labs

RF TX IC FSK 868/915MHZ 16TSSOP

0

ATA8741C-PXQW

ATA8741C-PXQW

Roving Networks / Microchip Technology

RF TX IC ASK 310-350MHZ 24VQFN

0

MAX2370ETM-T

MAX2370ETM-T

Maxim Integrated

RF TX IC CDMA2000 450MHZ 48WFQFN

0

TH72001KDC-BAA-000-RE

TH72001KDC-BAA-000-RE

Melexis

RF TRANSMITTER FSK 315MHZ 8SOIC

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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