USB3347-CP

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The USB3347-CP is a universal serial bus (USB) 3.0 mini-transceiver chip with an integrated USB 3.0 Device Controller and one USB 3.0 Linestates input port and two USB 3.0 LINESTATES output ports. It is a dual-channel differential impedance-controlled Linestates transceiver developed especially for the USB 3.0 interface. It provides a high-speed signal pathway between the USB 3.0 host and peripheral, thus allowing data transmission at up to 6.0Gbps. The USB3347-CP is designed for low power consumption and reliable signal propagation. These features make the USB3347-CP ideal for applications in notebooks and ultra-portable devices.

Application Field

The USB3347-CP\'s features make it suitable for use in a variety of applications, including:

• USB 3.0 ports in ultra-slim mobile devices, such as tablets and ultrabooks
• Desktop PCs and notebooks
• Hard disk drives and other peripherals with USB 3.0 interfaces
• External memory cards and other external peripherals
• USB 3.0-enabled display and docking solutions

Working Principle

The USB3347-CP operates on a differential impedance principle, which ensures robust signal propagation over long cables. This is done by maintaining an equal impedance between the two differential signal pairs, which are transmitted and received over the USB 3.0 bus. The differential impedance is achieved by controlling the impedance of the differential transmit and receive lines. The USB3347-CP also performs additional functions such as error detection, signal polarity correction and data retransmission.

The USB3347-CP receives data from the USB 3.0 host via the Linestates input port. This data is then re-transmitted on the two differential output lines. The transceiver also performs some additional functions, such as error detection and signal polarity correction. The differential signals are then fed to a USB 3.0 peripheral, such as a hard disk drive or an external memory card, for further processing.

The USB3347-CP is powered from the USB 3.0 host and requires no external power supply. The device operates from a single 3.3V power supply and consumes a maximum of 160mA of current. The USB3347-CP is also designed for low EMI emissions, meeting the requirements of various standards for electromagnetic compatibility.

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