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NPT2021 Scheda tecnica(PDF) 5 Page - M/A-COM Technology Solutions, Inc. |
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NPT2021 Scheda tecnica(HTML) 5 Page - M/A-COM Technology Solutions, Inc. |
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5 / 9 page ![]() GaN Wideband Transistor 48 V, 45 W DC - 2.5 GHz Rev. V1 NPT2021 5 55 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support Parts measured on evaluation board (30-mil thick RO4350). The PCB’s electrical and thermal ground is provided using a standard-plated densely packed via hole array (see recommended via pattern). Matching is provided using a combination of lumped elements and transmission lines as shown in the simplified schematic above. Recommended tuning solution component placement, transmission lines, and details are shown on the next page. Evaluation Board and Recommended Tuning Solution 2.5 GHz Narrowband Circuit Description Turning the device ON 1. Set VGS to the pinch-off (VP), typically -5 V. 2. Turn on VDS to nominal voltage (48 V). 3. Increase VGS until the IDS current is reached. 4. Apply RF power to desired level. Turning the device OFF 1. Turn the RF power off. 2. Decrease VGS down to VP. 3. Decrease VDS down to 0 V. 4. Turn off VGS. Bias Sequencing C14 3.0 pF C4 1000 pF C3 0.01 mF C2 0.1 mF C1 1.0 mF VGS VDS C16 0.5 pF C15 2.4 pF RF Out NPT2021 C5 1.0 mF C6 0.1 mF C7 0.01 mF C8 1000pF C13 0.5 pF RF In C9 10 pF C11 18 pF C12 18 pF R1 24.9 L1 22 nH C10 15 pF R2 0 C17 2.4 pF |
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