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GRF releases broadband pre-driver for 5G and 4G

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GaAs pHEMT amplifier provides high linearity and compression for multi-carrier 5G and 4G transmitters

Guerrilla RF has announced the formal release of its new GRF5112, a highly linear, broadband power amplifier that the company says excels in delivering compression performance over large fractional bandwidths of up to 40 percent.

The OkFSIl2's broad, single-tuned responses enable multicarrier base stations to simultaneously transmit across two or more cellular bands using a single KF lineup.

"The GRF5112 is another example of Guerrilla RF constantly working to improve its driver amplifier offering, " says Jim Ahne, vice president of marketing at Guerrilla RF. "Building upon the GRF5II5 core, this latest iteration streamlines tuning while ensuring consistent performance across process and temperature variations. Our design team has also integrated additional tuning handles within the core to optimise linearity for specific bands and bias conditions.*

The GRF5112 can be tuned to operate over select bands within the 30 to 2700 MHz frequency range. When operated at 1.8 GHz, the device delivers 17.1 dB of gain, 32.2 dBm of OPIdB compression, 40 dBm of OIP3 linearity, and a low noise figure of 1.7 dB (as measured on the device's standard evaluation board; de-embedded NF values are approximately 0.2dB lower).

Like other GRF amplifier cores, the GRF5112 features a flexible biasing architecture allowing customizable trade-offs between linearity and power consumption. Supply voltages can vary between 1.8 and 5.25 V, although most customers will elect to use a standard 5V supply with 212 mA of biasing current.

Packaged in a compact 3 X 3 mm OF-16 package. the OKFSIl2 shares a pinout and matching layout with many of the company's linear drivers and power amplifier cores.

Samples and evaluation boards are available for the GRF5112.

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