USB3450数据手册集成电路（IC）的驱动器接收器收发器规格书PDF

描述 Description

The USB3450 is a stand-alone Hi-Speed USB Physical Layer Transceiver (PHY). The USB3450 uses a UTMI+ interface to connect to an SOC or ASIC or FPGA. Microchip's advanced proprietary technology minimizes power dissipation, resulting in maximum battery life for portable applications. The USB3450 is a flexible solution for adding USB to new designs without integrating the analog PHY block.

The USB3450 provides a fully compliant Hi-Speed interface, and supports Hi-Speed (HS), Full-Speed (FS), and Low-Speed (LS) USB. The USB3450 supports all levels of the UTMI+ specification.

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特性 Features

Features
• USB-IF \"Hi-Speed\" certified to the Universal Serial Bus Specification Rev 2.0
• Interface compliant with the UTMI+ Specification, Revision 1.0
• Functional as a host or device PHY
• Supports HS, FS, and LS data rates
• Supports FS pre-amble for FS hubs with a LS device attached (UTMI+ Level 3)
• Supports HS SOF and LS keep alive pulse
• Low Latency Hi-Speed Receiver (43 Hi-Speed clocks Max)
• Internal 1.8 volt regulators allow operation from a single 3.3 volt supply
• Internal short circuit protection of DP and DM lines to VBUS or ground
• Integrated 24MHz Crystal Oscillator supports either crystal operation or 24MHz external clock input
• Internal PLL for 480MHz Hi-Speed USB operation
• Supports Hi-Speed USB and legacy USB 1.1 devices
• 55mA Unconfigured Current (typical) - ideal for bus powered applications
• 83uA suspend current (typical) - ideal for battery powered applications
• Full Commercial operating temperature range from 0°C to +70°C
• 40 pin QFN RoHS compliant package (6 x 6 x 0.9mm height)

简介

USB3450属于集成电路（IC）的驱动器接收器收发器。由制造生产的USB3450驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。