This compact switch has been engineered to meet the demands of modern 5G cellular infrastructure and other wireless communication applications, offering enhanced isolation and low insertion loss across a wide frequency range.
5G base stations have many antennas and an SPDT switch allows selection between two antennas or different signal paths.
The ‘absorptive’ aspect of the switch means that when a port is not being used, it is terminated into a load (usually 50 ohms). This prevents the reflection of RF signals back into the system, which can cause interference or signal degradation.
The NT1819 provides high isolation between RF terminals of 60 dB at 3.85 GHz and 50 dB at 7.125 GHz – this feature is crucial for next-generation communication networks, where interference must be minimised to maintain signal integrity.
The switch operates over a wide frequency range from 0.2 to 7.125 GHz, supporting flexibility in design and deployment for various wireless standards. The NT1819 operates at 3.3 V with a typical current consumption of just 200 µA making it power efficient. It is also resilient in harsh operating environments across a broad temperature range from -40 °C to +105 °C.
With its small 3.0 × 3.0 mm QFN3030-16-NA package it has been designed to save space on PCBs, making it suitable for base transceiver stations in small and macro cell environments, as well as other advanced wireless communication systems.
The device has an MSL1 rating, components in this category have the lowest sensitivity to moisture and can typically be exposed to ambient air without special precautions.
The NT1819 is available for purchase now.
