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The GRF6403, the second in a new series of 0.25 dB step digital step attenuators (DSAs) being developed by the company, has been sampled. These gadgets make advantage of the cutting-edge Silicon-on-Insulator (SOI) method found in many of the business’s modern signal chain products.
Ryan Pratt, CEO and founder of Guerrilla RF, noted that the GRF6403 reflects the organization’s growth into devices that complement its market-leading range of amplifier cores. His GRF6402’s brother, his most recent DSA, utilizes the same essential technology. Rapid growth into another area of the infrastructure market is made possible by adding a parallel port to the DSA core.
The GRF6403’s potential to immediately create business revenue is enhanced by the fact that it is drop-in compatible with a number of rival products. We anticipate that DSA’s unique Rapid FireTM function will make this part more desirable than the alternatives.
A 7-bit device with a 31.75 dB range, the GRF6403 supports three unique programming modes including serial, direct parallel, and hold parallel. The GRF6403 also includes a unique Rapid Fire™ mode that bypasses the delays associated with typical SPI programming transactions and allows the device to instantly switch to a pre-defined secondary attenuation state.
The GRF6403 can perform across the entire frequency range of 50MHz to 6GHz while retaining precise and monotonic gain scaling. Each step reduced the glitch to under 2 dB. The gadget provides low IL of 1.3dB at 2GHz and up to 30dBm at IP0.1dB and 60dBm at IIP3.
This functionality enables quick switching TDD applications by allowing a single His DSA to be utilized for both TX and RX modes. The “Fast Attack” signal chain protection method can also be enabled using the Rapid FireTM function when it is imperative to immediately activate additional attenuation.