HMC547ALC3

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RF Switches

RF switches are a type of radio-frequency device used to switch between multiple input signals or transfer signals from one output to another. The HMC547ALC3 is a wideband SP4T reflective switch designed for high linearity applications from DC to 8 GHz. The low insertion loss, low polarization dependence, and excellent isolation makes the HMC547 an ideal candidate for many applications including 4-way, multi band antenna switching systems, and other switching applications.

The design of the HMC547ALC3 utilizes an array of four PIN diodes connected in series with two diode arrays and a single transmission line capacitor. The four PIN diodes are operated in the reflect mode by a single biasing voltage applied to the diode and transmission line capacitor. When the biasing voltage is “OFF”, each PIN diode creates a short circuit at the output port, which then reflects the input signal as an open circuit. When the biasing voltage is “ON”, the PIN diodes in the diode arrays are forward biased and the output port is shorted to ground. This creates an open circuit at the input port, which then reflects the signal out of the switch.

The HMC547ALC3 also features an integrated low pass filter that helps to reduce high frequency interference. The switching speed of the device is also adjustable, allowing the user to select speeds ranging from 5 ns to 10 ms. The low insertion loss and high isolation make the HMC547ALC3 an ideal choice for applications that require switching between multiple channels without any loss of signal quality.

The HMC547ALC3 has a wide range of applications due to its wide frequency range, low insertion loss and high linearity. In addition, the low pass filter and adjustable switching speeds make it suitable for many applications such as 4-way multi-band antenna switching systems, switching between multiple channels without signal loss, and other RF applications. Furthermore, its small footprint and low profile make it ideal for space-constrained applications.

In conclusion, the HMC547ALC3 is a wideband reflective switch designed for high linearity applications from DC to 8 GHz. It features an integrated low pass filter, adjustable switching speeds, low insertion loss, and high isolation, making it perfect for switching between multiple channels without signal loss. Additionally, its small footprint and low profile make it well suited for space-constrained applications.

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