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Overview
Description
The F2914 is a high reliability, low insertion loss, 50 Ω SP4T absorptive RF switch designed for a multitude of wireless and other RF applications. This device covers a broad frequency range from 50 MHz to 8000 MHz. In addition to providing low insertion loss, the F2914 also delivers excellent linearity and isolation performance while providing a 50 Ω termination to the unused RF ports. The F2914 also includes a patent pending constant impedance (Kz) feature. Kz improves hot switching ruggedness, minimizes LO pulling in VCOs, and reduces phase and amplitude variations in distribution networks. It is also ideal for dynamic switching/selection between two or more amplifiers while avoiding damage to upstream/downstream sensitive devices such as PAs and ADCs.
The F2914 uses a single positive supply voltage supporting three logic control pins using either 3.3 V or 1.8 V control logic. Connecting a negative voltage to pin 20 disables the internal negative voltage generator and becomes the negative supply.
Features
- Four symmetric broad band, absorptive RF ports
- Constant Impedance, Kz, feature
- High performance RF
- Isolation of 54 dB @ 2700 MHz
- Insertion Loss of 1.15 dB @ 2700 MHz
- High continuous RF CW Power Handling
- Selected RF path: 33dBm
- Terminated RF path: 27dBm
- High linearity:
- IIP2 of 114 dBm
- IIP3 of 59.5 dBm
- Single 2.7 V to 5.50 V supply voltage
- External Negative Supply Option
- 3.3 V and 1.8 V compatible control logic
- Operating temperature -40 °C to +105 °C
- 4 mm x 4 mm 24 pin QFN package
Applications
Design & Development
Boards & Kits
Boards & Kits
Evaluation Board for High Reliability SP4T Absorptive RF Switch
The F2914EVBI is a fully populated evaluation board which allows the customer to easily evaluate the F2914 RF switch.
“Thru” calibration connectors are conveniently located on the eval board to simplify the calibration process prior to making any RF measurements. Each RF port (RF1, RF2, RF3, and RF4) can be connected to RFC by applying the correct control logic voltage to the V1, V2 and V3 control pins as outlined in the F2914 datasheet.
Featured Documents:
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
| VFQFPN | 24 | K | Yes | Switch | Tray | Get Samples, | |
| VFQFPN | 24 | K | Yes | Switch | Reel |
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play_circle_filledVideos & Training
IDT RF Product Benefits Overview
Hello, my name is Dan Terlep. I'm a Product Definer in IDT's RF group. What I'm going to talk about are some of the customer benefits of IDT's technical innovations used in RF products. These are unique innovations that differentiate our products from competitive parts. Up to 10x improvement in RF performance can be obtained when using these devices in your designs. This technology is highly desired by equipment vendors and is protected by patents.
Glitch-free technology essentially eliminates the transient overshoot that can occur during mSv attenuation state transitions of standard digital step attenuators. Flat-noise technology maintains near constant noise performance [inaudible 00:00:48] reduced in our variable gain amplifiers, thus optimizing system level signal-to-noise performance. Zero-distortion technology practically eliminates intermodulation distortion in our RF mixers and amplifiers, enhancing the system's quality of service. Kz refers to constant impedance technology, which has implemented a new line of RF switches that allows 'hot switching' in TDD systems.
Additional benefits of using IDT's RF solutions include: enable screen networks with minimal power consumption; allow scaling from macrocells to microcells using the same device with reduced voltage, reduced current, or both; improves reliability by replacing gallium arsenite with silicon; improves data throughput by optimizing signal-to-noise performance and overall dynamic range; tolerates higher operating temperature than competitive devices.
Note that IDT's RF cards are used by all major cellular 3G and 4G equipment manufacturers for systems deployed all over the world. IDT's advanced RF portfolio using these technologies includes: mixers, digital step attenuators, RF switches, variable gain amplifiers, and modulators. These are silicon monolithic devices offered in QFN packages.
In summary, IDT's RF portfolio replaces gallium arsenite parts, results in higher reliability, provides better signal-to-noise performance, faster settling times, eliminates glitching and third-order intermodulation distortion, reduces DC power consumption, and operates at higher temperatures. Thank you for your time, and please make sure to visit IDT's RF website for a more complete look at our product portfolio. For additional information and support, please use the email shown.
Video List
