HMC321LP4

Test Frequency:	8GHz
Base Part Number:	HMC321
Supplier Device Package:	24-SMT (4x4)
Package / Case:	24-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	5V
Impedance:	50 Ohm, 75 Ohm
Features:	--
IIP3:	40dBm
P1dB:	23dBm
Series:	--
Insertion Loss:	2.7dB
Isolation:	25dB
Frequency Range:	DC ~ 8GHz
Circuit:	SP8T
Topology:	Absorptive
RF Type:	General Purpose
Part Status:	Obsolete
Packaging:	Cut Strip

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, markdown# HMC321LP4 Application Field and Working PrincipleRadio-frequency (RF) switches are used to route radio frequency signals between different parts of an electronic system. A common example of this is the use of switches in a cellular phone. The HMC321LP4 is a compact and low-cost dual-pole switch, designed for a wide range of RF applications.## Frequency RangeThe HMC321LP4 is designed to handle signals across the frequency range of 200MHz to 4GHz. Its compact form factor enables it to fit into mobile phones with limited space, while its low insertion loss makes it ideal for use in wireless networks.## ApplicationsThe HMC321LP4 is designed for a range of applications, including WLAN and WiMAX systems, GPS receivers, cellular base stations, and VoIP systems. Its dual-pole switch capabilities make it well-suited for applications involving multiple signals, such as multi-band RF distribution networks. In addition, its low insertion loss makes it ideal for use in high-sensitivity circuits.## Working PrincipleThe HMC321LP4 operates on a single voltage supply, and it can be used in both normally-open and normally-closed configurations. The device switches between two separate signals using GND as the controlling signal. When GND is driven high, the switch will open and the output will be disconnected from the input. When GND is driven low, the switch will close and the input signal is routed to the output.The HMC321LP4 is also equipped with an interruptable output-enable function, which enables the user to keep the switch in the open position until the signal returns. This allows the user to shut off power to the output while maintaining the switch state, and it can be used to improve the power efficiency of the system.## ConclusionThe HMC321LP4 is a compact and low-cost dual-pole switch, designed for use in a wide range of frequencies and applications. Its low insertion loss and interruptable output-enable function make it ideal for use in high-sensitivity and power efficiency-critical RF systems.

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