


HMC349 RF Switch Module 3‑5V 50 Ohm SMA Interface
Part number HMC349
From the shop's description
HMC349 RF Switch Module 3-5V 50 Ohm SMA Interface The HMC349 RF Switch Module is a high-performance, nonreflective, gallium arsenide single-pole, double-throw switch designed for operation from 100 MHz to 4 GHz. This module is ideal for applications in wireless infrastructure, mobile radios, and test equipment where high isolation and low insertion loss are critical. The module features a 50 Ohm impedance and is compatible with SMA connectors , making it easy to integrate into various RF systems. It operates on a single, positive supply voltage ranging from 3V to 5V and offers CMOS/TTL-compatible control logic. The HMC349 provides excellent power handling capabilities, with a typical 1 dB power compression of 34 dBm and a third-order intercept point of 53 dBm, ensuring reliable performance in demanding environments. Features: Made of material, corrosion‑resistant, anti‑oxidation, increased service life. High working frequency, increases the scope of application, strong practicality. The large heat dissipation area can increase the continuous working time. Advanced manufacturing technology, high reliability and stable performance. Built to meet standard specification, strictly follow factory quality control. Specification: Parameter Specification Switch Type SPDT (single-pole, double-throw) Frequency Range 0.1–4.0 GHz Insertion Loss ≈1.0 dB (≤2 GHz) Isolation up to ~62 dB (≤2 GHz) Input Return Loss ≥15–20 dB (typical, ≤2 GHz) Input P <sub> 1dB </sub> ≈34 dBm (V <sub> DD </sub> =5 V) Input IP <sub> 3 </sub> ≈53 dBm (V <sub> DD </sub> =5 V) Supply Voltage (V <sub> DD </sub> ) +3.0 – +5.0 V Control Interface CMOS/TTL logic (3–5 V, active-low enable) Impedance 50 Ω Connectors SMA (female) for RFC, RF1, RF2 ports Dimensions 40mm×30mm Pin Configuration: SMA Connectors : RFC: RF Common Port (50 Ohm, DC-coupled, requires external DC blocking capacitor). RF1: RF Throw Port 1 (50 Ohm, DC-coupled, requires external DC blocking capacitor). RF2: RF Throw Port 2 (50 Ohm, DC-coupled, requires external DC blocking capacitor). 4-Pin Header : Pin Position Label Description 1 (leftmost) GND Ground 2 VDD Supply Voltage (3V to 5V) 3 CTRL Logic Control Input 4 (rightmost) EN Logic Enable Input Applications: Wireless infrastructure. Mobile radios. Test equipment. Package Includes: 1 x HMC349 RF Switch Module with SMA interfaces. 1 x connection cable. 1 x Qualified Certificate.
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