Microchip Technology

ATR0981-EK - 400-500MHz UHF SiGe Front-End Eval Board | Microchip

N.º da peça: ATR0981-EK ✓ Ativo
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400 MHz to 500 MHz Speed
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Preço atualizado: 2026-09-19
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ATR0981-EK Visão geral

The Microchip Technology ATR0981-EK is an evaluation board (front-end kit) for the ATR0981 UHF SiGe front-end IC, covering the 400 MHz to 500 MHz frequency range and supplied with one populated demonstration board.

An RF front-end evaluation kit is a hardware development tool that lets engineers exercise a radio-frequency integrated circuit outside of a custom PCB design. In the RF signal-chain hierarchy, the ATR0981 itself is a monolithic transmit/receive front-end built on Atmel's (now Microchip's) advanced silicon-germanium (SiGe) process, and the -EK suffix denotes the board-level companion product used to characterize, prototype, and validate designs around that IC before committing to production layouts.

Key attributes of this kit include support for the 300 MHz to 500 MHz operating range of the ATR0981 die (with the board itself specified at 400 MHz to 500 MHz), the SiGe front-end technology that delivers low noise and good linearity for sub-GHz radios, and RoHS-compliant, lead-free construction. The kit exposes the transmit and receive front-end functions of the IC for measurement with standard RF test equipment such as spectrum analyzers and vector network analyzers.

The ATR0981 is a monolithic IC manufactured using Atmel's advanced SiGe technology; it performs a transmit and receive front-end function dedicated to the 300 MHz to 500 MHz band. SiGe bipolar processes provide high transition frequency (fT) devices, which translate into useful gain and low noise figure at UHF frequencies where CMOS front-ends typically struggle. This makes the part attractive for battery-powered sub-GHz ISM-band radio designs such as meters, telemetry links, and remote-keyless-entry style systems.

Typical applications include prototyping 400-500 MHz TX/RX front-ends for short-range industrial telemetry, RF link budget characterization for sub-GHz sensor nodes, and lab evaluation of SiGe front-end performance ahead of custom PCB integration.

A key design consideration is that board-level RF performance (return loss, gain, noise figure) depends on the evaluation board layout; results are only transferable to a custom design if equivalent controlled-impedance RF layout practices are reproduced.

This page synthesizes distributor listings, datasheet references, and practical engineering context not found on the manufacturer product page alone.

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ATR0981-EK Especificações (publicadas pelo fabricante)

Product Type Front End Evaluation Board
Supplied Contents Board
For Use With/Related Products ATR0981
Frequency Range 400 MHz to 500 MHz
Front-End IC Technology SiGe (silicon-germanium), monolithic
Front-End IC Band 300 MHz to 500 MHz (per ATR0981 datasheet)
Função Transmit / Receive front-end
Categoria Sub-GHz Development Tools
Status RoHS RoHS Compliant
Lead Free Status Lead Free

Interfaces e Conectores do ATR0981-EK

Não há lista de interfaces publicada pelo fabricante disponível para ATR0981-EK. Consulte a documentação do fabricante para detalhes de conectores e headers.

Consulte a documentação do fabricante para a pinagem completa do conector de expansão e a numeração dos pinos do conector.

Aplicações típicas

ATR0981-EK é adequado para 6 aplicaçãos: Sub-GHz Radio Prototyping, RF Link Budget Characterization, SiGe Front-End Technology Evaluation, Utility Metering RF Front-Ends, Industrial Telemetry and Remote Control, RF Education and Lab Training.

🌐

Sub-GHz Radio Prototyping

The ATR0981-EK provides a ready-made platform for prototyping 400-500 MHz transmit/receive radio front-ends without designing a custom PCB. Because the underlying ATR0981 is a monolithic SiGe TX/RX front-end covering 300-500 MHz, engineers can quickly measure gain, matching, and spectrum occupancy on the board, then transfer layout practices into production designs. This shortens the iteration loop for sub-GHz ISM-band products such as telemetry transmitters and remote-control receivers. Using the evaluation board first reduces RF layout risk, since the manufacturer-populated board demonstrates correct grounding, decoupling, and RF routing for the SiGe front-end in its intended 400-500 MHz band.

📡

RF Link Budget Characterization

When planning a short-range sub-GHz radio link, engineers must measure real front-end performance to build an accurate link budget. The ATR0981-EK, specified for 400 MHz to 500 MHz, lets teams measure the ATR0981's TX output power and RX front-end behavior with a VNA and spectrum analyzer before committing to custom hardware. Quantified board-level data - measured return loss, gain flatness across 400-500 MHz, and output spectrum - feeds directly into coverage calculations for metering, telemetry, or sensor networks. Measuring on the evaluation board avoids the common pitfall of relying only on datasheet typical values, which may not reflect specific biasing and matching conditions in a new design.

🔬

SiGe Front-End Technology Evaluation

The ATR0981 die is manufactured on Atmel's advanced silicon-germanium (SiGe) process, which offers higher transition frequency and better noise performance at UHF than typical CMOS front-ends. The ATR0981-EK board makes this technology accessible for hands-on evaluation: engineers can benchmark SiGe front-end behavior - noise figure, linearity, and gain in the 400-500 MHz band - against alternative technologies before selecting a radio architecture. This is valuable for teams comparing SiGe bipolar front-ends against integrated CMOS transceivers for cost-sensitive sub-GHz products. The kit supplies the board only, so test equipment and external bias/microcontroller control for the ATR0981 must be provided by the user per the ATR0981 datasheet.

⚡

Utility Metering RF Front-Ends

Sub-GHz bands around 400-500 MHz are widely used for utility metering, automatic meter reading (AMR), and industrial telemetry, where penetration and range matter more than bandwidth. The ATR0981-EK enables metering system designers to validate a SiGe TX/RX front-end in exactly this band before production. By measuring the ATR0981's front-end performance on the evaluation board, designers can confirm that transmit output and receive sensitivity meet the link requirements of meter-to-gateway communications. Because the kit is RoHS compliant and lead free, it can be used freely in development labs shipping to EU markets, and measured results transfer to custom meter PCBs that replicate the evaluation board's RF layout and matching network.

🏭

Industrial Telemetry and Remote Control

Industrial telemetry links - tank level monitoring, machine status reporting, and remote-control receivers - commonly operate in the 400-500 MHz region where propagation is favorable and antenna sizes are practical. The ATR0981-EK supports development of these systems by providing a characterized platform for the ATR0981 SiGe TX/RX front-end in its specified 400-500 MHz band. Engineers can measure transmit spectrum compliance, verify receiver front-end gain and matching, and evaluate real-world range with prototype antennas connected to the board. This de-risks the radio portion of the product before custom PCB fabrication, and the evaluation board serves as a golden reference when debugging first-article production hardware later in the program.

🔧

RF Education and Lab Training

The ATR0981-EK is a practical teaching platform for RF front-end coursework and lab training. Because it exercises a real monolithic SiGe TX/RX front-end over a defined 400-500 MHz band, students can perform classic RF measurements - S-parameters, gain, matching, and spectrum analysis - on commercial hardware using standard instruments like VNAs and spectrum analyzers. The board illustrates SiGe technology concepts described in the ATR0981 datasheet, connecting theory (noise figure, linearity, front-end architecture) with measurable results. Being a single supplied board, it is inexpensive to equip a lab bench, and RoHS compliance makes it suitable for institutional procurement in regulated markets.

Resumo dos produtos recomendados

ATR0981 Front-end IC evaluated by this kit Usado em: Sub-GHz Radio Prototyping, RF Link Budget Characterization, SiGe Front-End Technology Evaluation, Utility Metering RF Front-Ends, Industrial Telemetry and Remote Control, RF Education and Lab Training
What is the ATR0981-EK evaluation board used for?
The ATR0981-EK is an evaluation board for the ATR0981 UHF SiGe front-end IC, used to prototype and characterize transmit/receive front-end circuits in the 400 MHz to 500 MHz range. According to distributor listings (DigiKey, Mouser), the supplied contents are the board itself, categorized under Sub-GHz Development Tools as a TX/RX front-end evaluation platform for the 400-500 MHz band.
What is the frequency range of the ATR0981-EK?
The ATR0981-EK covers 400 MHz to 500 MHz, per the chipdig datasheet specification summary. The underlying ATR0981 SiGe front-end IC is specified from 300 MHz to 500 MHz, so the die supports a slightly wider band than the evaluation board is characterized for; designs outside 400-500 MHz should validate performance independently on a custom board.
Which IC does the ATR0981-EK support?
The ATR0981-EK supports the ATR0981, a monolithic UHF SiGe transmit/receive front-end IC manufactured with Atmel's advanced silicon-germanium technology (Atmel's MCU/RF business is now part of Microchip Technology). The 'For Use With/Related Products' field in the datasheet summary explicitly lists ATR0981 as the companion device for this front-end evaluation board.
What are the key specifications of the ATR0981-EK that engineers should know?
The ATR0981-EK is a front-end evaluation board supplied with one board, designed for the ATR0981 UHF SiGe front-end IC in the 400-500 MHz band. It is RoHS compliant and lead free. The ATR0981 die is a monolithic TX/RX front-end built on Atmel SiGe technology covering 300-500 MHz. These facts come from the chipdig datasheet summary and DigiKey/Mouser product listings dated 2026.
Where to buy ATR0981-EK online?
The ATR0981-EK can be ordered online from authorized distributors including DigiKey (part ATR0981-EK-ND), Mouser Electronics, and TrustedParts.com, which aggregates inventory and pricing from authorized distributors. Secondary distributors such as Nantian Electronics (ntchip.com) also list stock. For volume pricing on this development board, request quotes directly since development tools are often priced as single-unit items.
What is the price of the ATR0981-EK?
Pricing for the ATR0981-EK varies by distributor and quantity, and as of 2026-09-19 this page does not carry verified unit pricing - request a quote through DigiKey, Mouser, or TrustedParts.com for current figures. Evaluation boards typically carry a fixed single-unit price rather than steep volume breaks, since the board is a development tool rather than a production component.
What is the lead time for the ATR0981-EK?
Lead time for the ATR0981-EK depends on distributor stock at time of order; check the live inventory status on DigiKey (ATR0981-EK-ND) or Mouser product pages, both of which display in-stock quantity and ship-today availability. As an older Atmel-originated development tool, stock can fluctuate, so TrustedParts.com is a useful aggregator for confirming availability across multiple authorized distributors before committing to a project schedule.
Is the ATR0981-EK in stock?
Stock status for the ATR0981-EK changes frequently and must be checked in real time at DigiKey, Mouser, or TrustedParts.com, all of which list live inventory for this part. The part remains an active Microchip development tool listing (not marked obsolete in the verified data), but since it originated in the Atmel catalog, long-term availability should be confirmed with Microchip or your distributor before designing it into a lab workflow.
Where to download the ATR0981 datasheet PDF?
The ATR0981 (the IC evaluated by the ATR0981-EK board) datasheet PDF is available through datasheet aggregators such as datasheet4u.com and chipdig.com, and officially through Microchip Technology's website, since Atmel products are now supported by Microchip. Search for 'ATR0981 UHF SiGe Front-End IC' on the Microchip documentation portal to obtain the current official revision rather than relying on third-party mirrors.
What is the difference between ATR0981 and ATR0981-EK?
The ATR0981 is the silicon: a monolithic UHF SiGe transmit/receive front-end IC covering 300 MHz to 500 MHz. The ATR0981-EK is the evaluation kit: a populated board whose supplied content is the board itself, built to exercise the ATR0981 in the 400-500 MHz range. In short, the -EK is a development tool for the IC, not a sellable radio component, and is used for characterization and prototyping.
Can the ATR0981-EK be used for 315 MHz or 868 MHz designs?
No - the ATR0981-EK board is specified for 400 MHz to 500 MHz. The ATR0981 die itself supports 300 MHz to 500 MHz, so lower frequencies near 300-400 MHz may work electrically but the evaluation board's matching network is tuned for 400-500 MHz and will not deliver characterized performance. For 868 MHz or 915 MHz sub-GHz bands, this front-end is out of range entirely; select a different front-end IC and matching evaluation kit.
Is the ATR0981-EK the same as a drop-in replacement board for other Atmel RF kits?
No. The ATR0981-EK is purpose-built for the ATR0981 front-end IC and is not interchangeable with other Atmel or Microchip RF evaluation boards. Verified cross-reference searches did not surface any pin-to-pin or board-level drop-in equivalents for this kit. If the ATR0981-EK is unavailable, the practical path is to evaluate the bare ATR0981 IC on a custom test board rather than substituting another vendor's evaluation platform.
Is the ATR0981-EK RoHS compliant and lead free?
Yes. According to the chipdig datasheet specification summary, the ATR0981-EK has a Lead Free Status of 'Lead Free' and a RoHS Status of 'RoHS Compliant'. This means the board meets EU Restriction of Hazardous Substances requirements and can be handled and shipped into RoHS jurisdictions without restriction. Compliance data for REACH or conflict minerals is not stated in the verified data and should be confirmed with Microchip directly.
What test equipment do I need to evaluate the ATR0981-EK?
To fully characterize the ATR0981-EK you typically need a vector network analyzer for S-parameter and matching measurements across the 400-500 MHz band, a spectrum analyzer or signal/spectrum analyzer for TX output spectrum and spurious evaluation, and an RF signal generator plus suitable power supplies for RX sensitivity and linearity tests. Use calibrated cables and account for connector losses; the board is a TX/RX front-end platform, so both transmit and receive paths should be measured.
When should I choose the ATR0981-EK over building a custom ATR0981 test board?
Choose the ATR0981-EK when you need fast, low-risk first-pass characterization of the ATR0981 in the 400-500 MHz band: it saves PCB spins, provides a known-good layout reference, and accelerates RF link budget work. Choose a custom board when your product frequency, matching network, or antenna interface differs from the kit's 400-500 MHz tuning, or when you need production-representative layout for final validation. Many teams use the kit first, then reproduce its RF layout practices in the custom design.

Dados de referência de engenharia para ATR0981-EK — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the ATR0981-EK when your project targets the 400-500 MHz band with the ATR0981 SiGe TX/RX front-end and you need rapid, low-risk characterization or prototyping: the board is the manufacturer-supported tool for this IC and provides a known-good RF layout baseline. Choose a custom test board instead if your operating frequency sits in the 300-400 MHz portion of the ATR0981's range (the kit's matching is tuned for 400-500 MHz), if you need production-representative layout, or if the kit is out of stock. There are no verified drop-in alternative evaluation boards for this kit in the cross-reference data, so if the ATR0981-EK is unavailable, evaluate the bare ATR0981 on your own carrier board. Note the kit is a development tool only - it must never be specified as a production BOM line item.

Comparação com alternativas

Parâmetro Este produto
Product Type Front End evaluation board
Frequency 400 MHz to 500 MHz
Supported IC ATR0981 (SiGe TX/RX front-end)
Supplied Contents Board
RoHS Compliant
Lead Free Yes
Brand Microchip Technology (Atmel legacy)
Package Board-level product (no IC package)

Principais diferenciais

  • Purpose-built platform for the ATR0981 SiGe front-end (vs Generic sub-GHz evaluation boards)
  • Known-good RF layout reference (vs Custom first-pass PCB)
  • RoHS-compliant, lead-free construction (vs Legacy/gray-market test boards)

Notas de projeto

When transferring results from the ATR0981-EK to a custom design, reproduce the evaluation board's RF layout practices: controlled-impedance 50-ohm transmission lines, continuous ground plane under RF traces, and short decoupling paths for the ATR0981 supply pins. Board-level matching is tuned for 400-500 MHz; any deviation in trace geometry, dielectric, or stackup will shift the match and degrade return loss. Compare your custom board's S11/S22 against the evaluation board baseline to verify layout fidelity before production.

Do not assume performance outside 400-500 MHz. The ATR0981 die supports 300-500 MHz per its datasheet, but the ATR0981-EK board matching network is specified for 400-500 MHz only; measurements below 400 MHz on the kit will be dominated by the board match, not the IC. Additionally, remember this is a development tool, not a production component - designing the -EK part number into a BOM is a common procurement error.

Provide clean, low-noise supply biasing to the ATR0981 front-end during evaluation. SiGe front-ends are sensitive to supply ripple, which can raise the measured noise floor and corrupt RX sensitivity results on the board. Use a linear lab supply or well-filtered bench supply, keep leads short, and verify supply decoupling on the evaluation board before drawing conclusions about IC noise performance.

Informações de conformidade

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Sem chumbo
Yes
Sem halogênios
Unknown
Minerais de conflito
Unknown

RoHS Compliant and Lead Free per chipdig datasheet specification summary. REACH, halogen-free, and conflict-minerals status not stated in verified data.

Dados verificados em: 2026-09-19 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

ATR0981-EK ATR0981-EK datasheet Microchip ATR0981-EK evaluation board ATR0981 UHF SiGe front-end IC 400-500MHz TX RX front-end evaluation kit ATR0981-EK price buy ATR0981-EK equivalent replacement board ATR0981 vs ATR0981-EK difference sub-GHz development tools 400-500MHz front end ATR0981-EK pinout is ATR0981-EK RoHS compliant Atmel ATR0981 evaluation kit Microchip

Componentes & termos relacionados

Microchip Technology Atmel ATR0981-EK ATR0981 ATR0981-TRHY UHF SiGe front-end IC development board evaluation kit Sub-GHz Development Tools 400 MHz to 500 MHz SiGe (silicon-germanium) process TX/RX front-end RoHS RF link budget vector network analyzer sub-GHz ISM band utility metering industrial telemetry
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