Evaluation Board for F1956 7-bit Digital Step Attenuator
The F1956EVBI is a fully populated evaluation board which allows the customer to easily evaluate the F1956 digital step attenuator. Attenuation may be set using either...
Overview
Description
The F1956 Glitch-Free™ Digital Step Attenuator (DSA) offers very high reliability due to its monolithic silicon die construction in a compact 5mm x 5mm 32-pin TQFN package. It has very low insertion loss with minimal distortion and is designed with a 50Ω input and output impedance. Additionally, the device is designed to have high accuracy which improves SNR and/or ACLR by ensuring the system gain is achieved as close to targeted as possible.
Features
- Serial and 7-bit parallel interface
- 31.75dB range
- 0.25dB steps
- Glitch-Free™: < 2dB transient ringing
- 500ns settling time
- Ultra linear +64dBm IP3
- Low insertion loss < 1.3dB at 4GHz
- Attenuation error < 0.6dB at 4GHz
- 3.3V or 5V Supply
- 1.8V or 3.3V control logic
- -40 °C to +105 °C operating temperature
- 5mm x 5mm, 32-pin TQFN package
Comparison
Applications
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 6.81 MB | |
| Guide | PDF 2.24 MB | |
| Guide | PDF 2.83 MB | |
| Product Change Notice | PDF 105 KB | |
| Product Brief | PDF 1.07 MB | |
| Product Change Notice | PDF 45 KB | |
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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.
Processing table
| VFQFPN | 32 | I | Yes | Tray | 1 | 4.209 | Get Samples, | |
| VFQFPN | 32 | I | Yes | Reel | 1 | 4.203 |
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Videos & Training
IDT RF Product Benefits Overview
This video highlights the customer benefits of IDT's (acquired by Renesas) innovative RF products, which offer up to 10x improvement in RF performance. Key technologies include glitch-free technology for smooth transitions, flat-noise technology for consistent noise performance, zero-distortion technology for minimal intermodulation distortion, and more.
Transcript
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
News & Blog Posts
| News | May 26, 2015 |
