ISL81487IP

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ISL81487IP is a Next Generation Quad Transceiver family designed to support low-power multi-protocol applications such as USB and e-SATA. It is compatible with standard voltage and low voltage logic family, most popularly with the PTS Group’s V series logic. The Quad Transceiver supports up to 4 ports and has a total static power dissipation of less than 10mW.

Application Field

The ISL81487IP is typically used in applications such as e-SATA, USB, HDMI and DisplayPort. The device supports data transfer speeds up to 400 Mbps and is capable of supporting up to 8 data lanes between its 4 ports. Furthermore, it has a multi-drop bus extension capability, allowing it to be connected to peripheral devices located up to 2 meters away from the main interface.

The ISL81487IP is an ideal component for low power and high speed applications and has become a mainstay for embedded systems and consumer electronics, replacing traditional transceiver pathways.

Working principle

The ISL81487IP’s working principle is based on the principle of current mirroring, whereby current from a select number of ports is “mirrored” across the others. This allows the device to be both low power and fast, as no extra current needs to be supplied in order to achieve increased data transfer speeds.

When in operation, the current mirror setup uses low power state to control the data transfer rate and supports up to 8 data lanes between its 4 ports. The current mirroring is done using a circuit topology known as symmetric mirror load (SML), which is based on multiplexers. This type of load allows the device to switch between multiple voltage ranges without any external components.

The ISL81487IP is also capable of providing power savings in certain applications. The device has integrated on-chip power saving oscillator that can reduce the power consumption of the entire system by up to 50%, making it an ideal component for low-power applications.

In addition to the current mirroring and power saving circuitry, the ISL81487IP also has in-built protection against electrostatic discharge (ESD) and over-voltage protection (OVP). This allows the device to function reliably in even the harshest of environments.

Conclusion

The ISL81487IP is a powerful and cost effective quad transceiver designed for low-power, multi-protocol applications. The device has an impressive data transfer rate of up to 400 Mbps and supports up to 8 data lanes between its 4 ports. As it is based on the current mirroring principle, it also provides power savings and in-built protection against various external damage scenarios. As such, the ISL81487IP is a great choice for embedded applications and consumer electronics.

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