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RF Power Amplifier
PA15W
Owner's Manual
SpinCore Technologies, Inc.
http://www.spincore.com

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Summary of Contents for SpinCore Technologies PA15W

  • Page 1 RF Power Amplifier PA15W Owner’s Manual SpinCore Technologies, Inc. http://www.spincore.com...
  • Page 2 SpinCore Technologies, Inc. makes every effort to verify the correct operation of the equipment. This equipment version is not intended for use in a system in which the failure of a SpinCore device will threaten the safety of equipment or person(s).
  • Page 3: Table Of Contents

    Table of Contents I. Precautions ....................4 Connecting & Disconnecting Power Amplifiers............4 Power Considerations....................4 II. PA15W – 15 W Power Amplifier Module ........... 5 1. Overview........................5 2. Electrical Specifications....................6 3. Typical Performance Data..................6 4. PA15W RF Module with Deblanking Circuitry............8 5.
  • Page 4: Precautions

    RF Power Amplifier PA15W I. Precautions Working with RF power amplifiers can be dangerous and even fatal if not handled properly. Output voltages can reach values greater than 90 V peak-to-peak and can be fatal. Follow these steps to avoid damaging the amplifier or inflicting serious injuries.
  • Page 5: Pa15W - 15 W Power Amplifier Module

    15 μs prior to the RF pulse being applied at the input. The PA15W module measures 2.5" x 2.25" x 2.5" (64 x 57 x 64 mm). There are multiple packaging options available, such as enclosures with integrated AC power supplies and complete mobile NMR, NQR and MRI systems that include preamplifiers, filters and SpinCore's RadioProcessorUSB board along with the PA15W.
  • Page 6: Electrical Specifications

    When powered by 12 V DC, driven by 1.8 V peak-to-peak (7.81 mW) RF input and with the output terminated with 50 Ohms, the PA15W provides the performance values contained in Table 2. Table 2: Typical PA15W performance from 1 MHz to 100 MHz.
  • Page 7 RF Power Amplifier PA15W Output Power vs. Frequency Pout (W) 90 100 Frequency (in MHz) Figure 1: Output Power vs. Frequency of the PA15W RF Power Amplifier. Gain vs. Frequency Gain (dB) 90 100 Frequency (MHz) Figure 2: Gain vs. Frequency of the PA15W RF Power Amplifier.
  • Page 8: Pa15W Rf Module With Deblanking Circuitry

    This is the simplest option, shown in Figure 3, which along with the power amplifier module includes only the switching circuitry mounted on top of the power amplifier to enable it when a TTL pulse is applied to the input pin. PA15W RF module connector information is described on the next page.
  • Page 9 Digi-Key part HKC10H-ND or similar. The timing diagram of a typical application of PA15W with the deblanking pulse applied prior to the RF pulse is presented in Figure 5, below. When working with short RF pulses, on the order of 1 μs or so, triggering the oscilloscope on the falling edge of the deblanking pulse will help with identifying and capturing the RF pulse on the scope.
  • Page 10 Figure 6. Typical performance of the PA15W at the end of pulse. Channel 2 is the deblanking signal and channel 1 is the RF output. The PA15W was driven by a 1.1 V peak-to-peak RF signal with the output signal attenuated 20 dB and terminated with 50 Ohms.
  • Page 11: Pa15W Rf Module Enclosure Options

    There are two standard enclosure configurations available: single-bay and dual-bay enclosures. 1. PA15W RF module enclosed in a single-bay enclosure The PA15W RF power amplifier can also be delivered in various external enclosures which protect the RF power amplifier circuitry and include an AC/DC power supply, internal RF cables and output low-pass (or band-pass) filter (please specify your operating frequency at the time of purchase).
  • Page 12: Pa15W Rf Module Enclosed In A Dual-Bay Enclosure

    Optional heatsink and fan assembly to allow continuous operation of the amplifier. • Available as part of a complete iSpin-NMR system or as a stand-alone PA15W. • Figure 9: PA15W RF power amplifier – enclosed in a dual-bay enclosure. http://www.spincore.com 2020-02-20...
  • Page 13: Related Products And Accessories

    3. RadioProcessor is SpinCore Technologies' general purpose, broadband, radio frequency (RF) digital data acquisition and excitation system. For more information, please visit http://www.spincore.com/products/RadioProcessor/ 4. If you require a custom power level, please inquire with SpinCore Technologies through our contact form, which is available at http://www.spincore.com/contact.shtml IV.

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