| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Texas Instruments |
RF AND BASEBAND CIRCUIT, CMOS, P |
449 |
|
 |
Roving Networks / Microchip Technology |
RF TX IC ASK/FSK 433MHZ 32VFQFN |
1348 |
|
 |
Roving Networks / Microchip Technology |
RF XMITTER UHF 868-928MHZ 24VQFN |
5975 |
|
 |
Texas Instruments |
TELECOM CIRCUIT, 1-FUNC, CMOS, P |
4273 |
|
 |
EnOcean |
RF TRANSMITTER FSK 902MHZ MODULE |
58 |
|
 |
Silicon Labs |
RF TX IC FSK 27-960MHZ 10TFSOP |
61 |
|
 |
Analog Devices, Inc. |
RF AND BASEBAND CIRCUIT |
22680 |
|
 |
Silicon Labs |
RF TX IC 142MHZ-1.05GHZ 20VFQFN |
0 |
|
 |
Nordic Semiconductor |
RF XMITTER GFSK 2.4GHZ 16VQFN |
0 |
|
 |
Texas Instruments |
RF TX IC ISM 164-192MHZ 32VFQFN |
143 |
|
 |
Melexis |
RF TRANSMITTER ISM 433MHZ 8SOIC |
58 |
|
 |
ROHM Semiconductor |
RF XMITTER FM 76-90MHZ 22SOIC |
0 |
|
 |
NXP Semiconductors |
RF TRANSMITTER 20TSSOP |
2500 |
|
 |
Linx Technologies |
RF TX IC ASK 418MHZ 27SMD MOD |
129 |
|
 |
Silicon Labs |
RF XMITTER FM 76-108MHZ 20UFQFN |
2393 |
|
 |
Analog Devices, Inc. |
RF TX IC ASK 75MHZ-1GHZ 24TSSOP |
753 |
|
 |
NXP Semiconductors |
RF TRANSMITTER UHF 24TSSOP |
0 |
|
 |
Melexis |
RF XMITTER FSK 868/915MHZ 8SOIC |
14 |
|
 |
Analog Devices, Inc. |
DUAL-BAND QUADRATURE TRANSMITTER |
181 |
|
 |
Silicon Labs |
RF TX IC FSK 27-960MHZ 14SOIC |
0 |
|
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.
| Type | Functional Features | Application Examples |
|---|---|---|
| ISM Band Transmitters | Unlicensed operation at 2.4 GHz/900 MHz | Wi-Fi routers, Bluetooth devices |
| Cellular Transmitters | 5G/LTE protocol support with power control | Smartphones, base stations |
| UHF RFID Readers | 860-960 MHz frequency agility | Warehouse inventory systems |
| HF RFID Modules | 13.56 MHz contactless payment support | Access control terminals |
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.
| Parameter | Significance |
|---|---|
| Frequency Range: 300 MHz - 6 GHz | Determines application compliance (e.g., FCC Part 15.247) |
| Output Power: 0.1 - 30 dBm | Affects transmission distance and regulatory class |
| Modulation Accuracy: EVM < 5% | Ensures data integrity in dense environments |
| Current Consumption: 5-100 mA | Battery life consideration for IoT devices |
Case Study: Amazon's warehouse robots use 868 MHz RFID readers for real-time inventory with 5 cm accuracy.
| Vendor | Representative Product |
|---|---|
| TI (Texas Instruments) | CC1352P7 multi-band wireless MCU |
| Nordic Semiconductor | nRF52840 Bluetooth 5.3 SoC |
| Impinj | R420 UHF Gen2 RFID reader |
| STMicroelectronics | CR95HF NFC/RFID transceiver |
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