The TRF1108 is a very high-performance, differential-to-single-ended (D2S) amplifier optimized for radio-frequency (RF) applications. The device is an excellent choice for applications that require a D2S conversion at the output of digital-to-analog converter (DAC) such as the high-performance DAC39RF10 or AFE7950. The on-chip matching components simplify printed-circuit-board (PCB) implementation and provide the highest performance over the usable bandwidth. The device is fabricated using Texas Instruments’ advanced complementary BiCMOS process and is available in a space-saving, WQFN-FCRLF 2mm × 2mm package.
The primary use-case of the TRF1108 is in ac-coupled applications, where the device operates using a single, 5V supply with an internally set common-mode voltage that simplifies biasing. With the help of an application circuit to set the input common-mode voltage, and by using dual supplies, the amplifier can be dc-coupled. A power-down feature is also available for power savings.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TRF1108 Near-DC to 8GHz, Differential to Single-Ended RF Amplifier datasheet (Rev. A) | PDF | HTML | 06 Nov 2024 |
| Certificate | TRF1108-DAC39RFEVM EU RoHS Declaration of Conformity (DoC) (Rev. A) | 27 Dec 2024 | ||
| Technical article | 在發射訊號鏈設計中使用差分至單端 RF 放大器的優勢 | PDF | HTML | 16 Aug 2024 | |
| Technical article | 전송 신호 체인 설계에 차동-단일 종단 RF 증폭기를 사용할 때의 장점 | PDF | HTML | 16 Aug 2024 | |
| Technical article | Advantages of using a differential to single-ended amplifier with DACs in an RF transmit signal chain design | PDF | HTML | 15 Aug 2024 | |
| Application brief | TRF1208, TRF1108 Active Balun Interface With Xilinx RFSoC Data Converters | PDF | HTML | 21 Feb 2023 |
For additional terms or required resources, click any title below to view the detail page where available.
The TRF-LSC-AFE7950EVM evaluation module is used to evaluate the performance of TI's AFE79xx family of integrated RF sampling transceivers with TI's TRF1208 single-ended-to-differential amplifier on RX, and TRF1108 differential-to-single-ended amplifier on TX. The AFE79xx devices support up to four (...)
The TRF1108-DAC39RFEVM is an evaluation board used to evaluate the DAC39RF10 digital-to-analog converter (DAC) paired with the TRF1108 differential to single ended RF amplifier from Texas Instruments. The evaluation module (EVM) offers device register programming through USB connector and FTDI (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN-FCRLF (RPV) | 12 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.
TI RF cascade calculator
Overview
The RF Cascade Calculator is a web-based tool for performing RF signal chain (lineup) cascade analysis. It computes cascaded performance parameters across a multi-stage RF signal chain using standard cascade equations (Friis formula for noise figure, reciprocal power sums for IP3/IP2/P1dB, etc.).
The tool is hosted on the TI Developer Gallery and runs entirely in the user's browser — no software download or installation is required.
Features (v1.0.0)
RF Cascade Analysis
Cascade Calculations (Friis and Standard Cascade Equations)
Derived System-Level Results
Interactive Plot
Input Validation
Tooltip Equations
Export