Test Frequency:	3GHz
Supplier Device Package:	6-TSSON
Package / Case:	6-XFDFN Exposed Pad
Operating Temperature:	-45°C ~ 85°C
Voltage - Supply:	--
Impedance:	50 Ohm
Features:	--
IIP3:	49dBm
P1dB:	25.5dBm
Series:	--
Insertion Loss:	0.27dB
Isolation:	27dB
Frequency Range:	50MHz ~ 3GHz
Circuit:	SPDT
Topology:	Reflective
RF Type:	L, S Band
Part Status:	Obsolete
Packaging:	Bulk

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RF Switches

RF switch is a kind of electronic switch device which is used to controllably connect or disconnect the RF signal path. It is widely used in various RF communication systems and radar systems, and has a variety of types and models. UPG2159T5K-A, the RF switch from Mornsun, is one of the representatives in the field. This article will analyze its application field and working principle.

What is UPG2159T5K-A?

UPG2159T5K-A is an RF switch developed by Mornsun, a world leader in the field of power electronics. It has a fully shielded cover, a 2.92mm standard board, and a working frequency of 5GHz.The switch features a original NMOS pass-FET process, anti-interference, high isolation, high reliability, low core power consumption, and remote control capability. The unit has a full temperature range of -40 to +85°C, an operating humidity of 95% maximum, a voltage range from 4.75V-5.0V, and a power output range of 2W maximum.

Application Field

The ultra-small UPG2159T5K-A RF switch has many applications. It is mainly used in radar systems, multi-antenna signal channel switching, smart antenna communication systems, wireless communication systems, and microwave signal measurement devices.The switch is mainly used to :1. Transfer signals between the transmit and receive chains.2. Switch two separate antennas to transmit and receive signals.3. Combining several antennas or radar systems.4. Dropping a signal to protect a front-end PA module.5. Reconfiguring an antenna array quickly.

Working Principle

The UPG2159T5K-A RF switch features a CMOS digital isolation interface with a digital control signal to implement a logical control of the hardware connection. When the "ON" signal is 0, the power supply turns off the MOSFET, and the RF signal path is cut off. When the "ON" signal is 1, the power supply turns on the MOSFET, and the RF signal path is connected again. At the same time, the isolation capacitors in the switch are used to isolate the control circuit from the signal line and the antenna, so as to ensure the correctness and stability of the switch control results.

Conclusion

UPG2159T5K-A RF switch is a small, reliable, and energy-efficient device with a wide range of applications and a low power consumption. Its application field widely covers the radar systems, multi-antenna signal channel switching, smart antenna communication systems, etc. The working principle of the RF switch is easy to understand, and it can be quickly switched with a CMOS digital isolation interface.

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