BAW56WT1

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BAW56WT1 is a small signal diode array composed of two high-speed switching diodes in a Very Small Outline package. It is designed to switches the signal paths of a single differential or dual single-ended RF signals. The BAW56WT1 offers high isolation, excellent linearity, and low insertion loss over a wide range of frequencies and is useful in wide range of applications. This article covers the application field and working principle of the BAW56WT1.

BAW56WT1 Applications:

The BAW56WT1 is designed to be used as a switch in RF circuits either in single differential or dual single-ended applications. Its outstanding characteristics include wide frequency range, low insertion loss, high isolation, and excellent linearity. Some of the most common applications of BAW56WT1 diode arrays include:

• RF switches for cellular phone architectures.
• Broadcast AM/FM radio switches.
• GPS signal switching.
• ISM band applications such as Wi-Fi, Bluetooth, and Zigbee.
• CMOS switches.
• Operational amplifiers.
• RF receiver circuits.
• Antenna selection and routing.
• Receiver signal switches.
• CDMA signal switching.

BAW56WT1 Working Principle:

The BAW56WT1 is a diode array composed of two high speed switching diodes that can handle a range of frequencies from DC to 6GHz. The BAW56WT1 is designed for single differential applications and can also be used for dual single-ended applications. The design of the BAW56WT1 ensures low insertion loss and good linearity, as well as high isolation and low switching threshold voltage. The BAW56WT1 operates in the cut-off region, and the forward voltage drop is around 1.2V. The reverse voltage is limited to 10V.

To achieve its excellent linearity, the BAW56WT1 uses a depletion mode MOSFET with a low R-on resistance allowing for low signal losses at high frequencies. The diode array is capable of switching on and off in less than 1µs, and has a low leakage current of 40 nA at negative gate bias.

Conclusion:

In conclusion, the BAW56WT1 is a small signal diode array designed for single differential or dual single-ended applications. It offers high isolation, excellent linearity, and low insertion loss over a wide range of frequencies and is useful in wide range of applications including RF switches for cellular phone architectures, broadcast AM/FM radio stations, GPS signal switching, ISM band applications, CMOS switches, operational amplifiers, RF receiver circuits, antenna selection and routing, receiver signal switching and CDMA signal switching. The diode array is capable of switching on and off in less than 1µs and it has a low reverse voltage of 10V. The forward voltage drop is around 1.2V and the low R-on resistance keeps signal losses at high frequencies low.

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