PI3B3257AQE

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Logic - Signal Switches, Multiplexers, Decoders is a broad family electronic products ranging from simple gate logic functions to complex integrated circuits. Below are the application field and working principle of PI3B3257AQE, one example of the logic family.

Application Field of PI3B3257AQE

PI3B3257AQE is a low-power, low-threshold dual simultaneous switch that operates in the frequency range of 3.5GHz/6GHz/9GHz to 44GHz. It is suitable for use in a wide variety of applications including:

• Cellular base station applications such as LTE, GSM, UMTS, LDC, and CDMA
• Backhaul applications such as VDSL, FTTC, FTTB, and PoE
• Multi-gigabit Ethernet switch applications
• Avionics and military applications
• Telemetry and instrumentation applications
• GPS transceiver applications

Working Principle of PI3B3257AQE

PI3B3257AQE consists of two low-power, low-threshold, low-noise switches, each consisting of a transmission line, an active load and a back termination. The two switches, in conjunction with two power dividers, independently provide signal and bias signals routing. The switches and power dividers are matched to have wide bandwidth operation. Two switches are inner connected, one is named positive signal routing, and the other is named negative signal routing. The positive signal routing is used to route the positive signal to the appropriate antenna port, while the negative signal routing is used to route the negative signal to the appropriate antenna port.

When the control signals between the two switches are not set to the same logic level, the positive signal routing and negative signal routing are turned on and off in a synchronized fashion. When the control signal is logic low, the positive signal routing is enabled and the negative signal routing is disabled. When the control signal is logic high, the negative signal routing is enabled and the positive signal routing is disabled. This structure allows for double simultaneous switching.

Conclusion

PI3B3257AQE is an excellent candidate for a wide variety of applications, from cellular base station applications to backhaul applications and from multi-gigabit Ethernet switch applications to instrumentation and telemetry applications. By utilizing the low-power, low-noise switch, PI3B3257AQE is capable of wide bandwidth operation and enabling of dual simultaneous switching.

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