ISL8484IU

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ISL8484IU is a versatile, low harmonic distortion, low on-resistance, high-speed analogue switch designed to be used in a variety of audio and video applications. The ISL8484IU offers low distortion and low on-resistance enable minimal signal degradation and distortion in high-fidelity audio systems. The device can easily switch between differential signalling, and can be used as a multiplexer or demultiplexer for mixing or mixing/splitting signals.

The ISL8484IU is particularly suited for applications where high frequency signal are present, like audio and video signal processing, or where a low distortion is needed when switching signal path components. The device provides superior performance compared to conventional analog switches and buffers.

The ISL8484IU has a wide signal range, from 0.7V PP to 5V PP, and wide signal bandwidth, up to 200MHz. This device features low power consumption – as low as 8μA /channel in standby mode. It has a low crosstalk – less than 70 dB between channels, low insertion loss, low off-state leakage current, low cost, and reliable switch operations.

The ISL8484IU offers a slew rate of 10V/ns, a wide common-mode range of +2V to AVDD-2V and a variable on-resistance. The device can be programmed with up to 8 channels. It is available in an SOIC-14 plastic surface mount package.

The ISL8484IU device is useful for audio and video applications such as signal multiplexers and switch amplifier control, cable output encoding/decoding, and signal channel identification. It can be used in applications such as switching between various signal inputs in audiovisual systems, automatically selecting the best audio source for a particular application, and performing signal routing, mixing and splitting. It can also be used for splitting an audio signal into two discrete channels or combining two discrete channels into one signal.

The working principle of the ISL8484IU is simple, yet effective. Each channel has two control pins: one ground, and one controlling the switching of the channel. The on-resistance of each channel is determined by the voltage at the control pin. When the control pin is set to low, the output is only as low as the ground level. When the control pin is set to high, the on-resistance is much lower, allowing less distortion in the audio signal.

Therefore, when a signal is routed through the ISL8484IU, the signal is buffered and routed to the correct output with lower distortion. If the signal is not routed correctly, it can be easily corrected with a switch and the signal will still be routed correctly to the intended output with minimal signal degradation.

The ISL8484IU is an excellent choice for audio and video signals, especially for high fidelity audio systems that require low distortion and low on-resistance. This device is cost effective, and its low power consumption, low crosstalk, and low insertion loss make it suitable for use in a variety of applications.

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