PI3DBS12412AZHEX

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The PI3DBS12412AZHEX Switch is a special purpose analog switch designed for interface applications. It is the newest addition to the PI3DBS family of switches from Pericom Technology, bringing a level of flexibility and performance not seen before. In this article we will go over the application field and working principle of the PI3DBS12412AZHEX.

Introduction

The PI3DBS12412AZHEX is an advanced, low-power switch optimized for interfacing between devices, such as digital signal processors (DSP) and digital circuits. It was designed with a unique architecture that reduces ground bounce noise, allowing it to function accurately and reliably despite the interference of fields such as digital and RF. The switch also provides an improved signal-to-noise ratio, shielding against EMI/RFI interference, and is able to switch high-speed signals up to 2.2GHz with low signal distortion.

Applications

The PI3DBS12412AZHEX is suitable for a wide range of applications including analog-to-digital converters, RF signal path switching, data acquisition, switching of audio signals and general signal routing. Its high performance and advanced features make it ideally suited for applications in multimedia, HDTV, automotive, communications, industrial and medical systems.

The PI3DBS12412AZHEX can be used in a wide variety of ways including analog multiplexing/demultiplexing, digital multiplexing/demultiplexing, signal routing and signal level translating. Its low power operation makes it ideal for battery-powered applications while its high performance allows it to keep up with the speeds of high-bandwidth digital signal processors.

Working Principle

The PI3DBS12412AZHEX is designed to have a very low on impedance of about 0.4 є, allowing for a low signal distortion. When in its off state, the signal is completely blocked and will not be passed through. The high performance and low signal distortion is achieved by the switch architecture, which includes a low gate leakage current, a low turn-on resistance, and an anti-parallel diodes to prevent signal sinking when the switch is in its off state. The anti-parallel diodes also reduce ground bounce noise, ensuring that the signal path is not corrupted by any external interference.

The PI3DBS12412AZHEX also has two digital control inputs, allowing for the easy selection of either source or sink operation. The source operation mode causes the device to block any signal that attempts to enter the switch, while the sink operation mode causes the signal to pass through the switch when enabled. This allows for a wide range of signal routing or level translation options.

Conclusion

The PI3DBS12412AZHEX switch is an advanced, low-power analog switch designed for interfacing between devices, such as digital signal processors (DSP) and digital circuits. It has a high performance architecture that reduces ground bounce noise to ensure a reliable signal path and can handle up to 2.2GHz signals with low signal distortion. It is suitable for a wide range of applications, including analog-to-digital conversion, data acquisition, switching of audio signals and general signal routing.

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