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1000W Planar FM pallet BLF188XR  


1000W FM wideband amplifier BLF188XR with planar output transformer, >80% efficiency, super low profile

Designed for FM radio transmitters, this amplifier uses a single NXP LDMOS BLF188XR push-pull transistor to produce >1000 watts! Efficiency at 50V DC exceeds 80%!
An excellent heatsink with strong technical background in RF amplifiers is required. Model PCS LPF 1500W, PCS LPF7000 or better are the only qualified low pass filter for this product. System integrators who plan to provide their own low pass filters must take great care to minimize any reflection in the filter. Quantity discount is available! Detailed PDF manual available on request.

Technical specifications:
- Shipping Weight: 0.9Kg
- 86-110MHz 50V @ 22.5-29A
- Efficiency >80%
- Input/Output 50 ohms
- Pout: >1000W with 5W input
- 24 dB gain
- Class B push-pull.
- Temperature compensated bias designed by NXP.
- Compact size; 60x126x20mm
- Bias disable pads facilitate integration into amplifier systems that employ automatic VSWR protection.

Note: Specifications vary slightly depending on NXP LDMOS transistor used

About NXP XR family of transistors: “Our ‘eXtremely Rugged’ family now delivers even more ruggedness to run with the most awkward RF loads – easily outperforming VDMOS performance, ruggedness and reliability using NXP’s latest high-voltage LDMOS technology,” said Mark Murphy, director of marketing, RF power business line, NXP Semiconductors. “Building on the success of the BLF578XR, the new BLF188XR extends our portfolio, and brings extra ruggedness, linearity, power and simplicity in design. And building on our proven track record as a leading RF power supplier in ISM markets, we’ve been able to design the BLF188XR as a highly compelling solution for a broad range of low-frequency applications, such as lasers, MRI, RF lighting and RF drying, as well as VHF/FM broadcast transmitters.”


IMPORTANT:
- Due to the High gain of this pallet, a good shielding between final stage and any driver/low power stage is required. Please foresee a good RF choke also on the supply wiring.
- Excessive drive level can damage this amplifier, design of equipment where the amplifier will be mounted, must foresee an appropriate protection circuits. Max input level is + 6dB referred to
the typical input power.
- Amplifier efficiency is function of supply voltage, in order to obtain max efficiency please reduce supply in function of desired output power. Generally best compromise between efficiency and harmonic emission, is obtained when the amplifier work at about 2-3 dB of gain compression.
- RF pallets are sensitive devices, if you do not have sufficient experience please consider a finished product instead. They can be burned by applying too much drive power, too high supply voltage, not using proper heatsink, using filter with unsufficient specifications, connecting mismatched loads or no load at all and also by soldering coax with too long leads. For this reason there is no warranty for any pallet. We do assure you that every pallet is tested and is 100% operational as it leaves our workshop.

This product was added to our catalog on Sunday 16 November, 2014.
 *Please select the quantity for each item you wish to order and click the 'Add To Cart' button below.
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1000W Planar FM pallet BLF188XR  1000W Planar FM pallet BLF188XR     599.99EUR
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