USB4715 datasheet(38/47 Pages) MICROCHIP

部件名	USB4715

功能描述	USB 2.0 Hi-Speed Hub Controller with FlexConnect on all Ports

PDF	47 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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38 / 47 page

USB4715

DS00002514B-page 38

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2022 Microchip Technology Inc. and its subsidiaries

Note 9-6

Frequency Deviation Over Time is also referred to as Aging.

Note 9-7

0 °C for commercial version, -40 °C for industrial and Grade 3 Automotive.

Note 9-8

+70 °C for commercial version, +85 °C for industrial and Grade 3 Automotive.

Note 9-9

This number includes the pad, the bond wire and the lead frame. PCB capacitance is not included

in this value. The

XTALI/CLK_IN pin, XTALO pin and PCB capacitance values are required to

accurately calculate the value of the two external load capacitors. These two external load capacitors

determine the accuracy of the 25.000 MHz frequency.

9.7.2

EXTERNAL REFERENCE CLOCK (

CLK_IN)

When using an external reference clock, the following input clock specifications are suggested:

• 25 MHz

• 50% duty cycle ±10%, ±100 ppm

• Jitter < 100 ps RMS

USB4715 数据表(PDF) 38 Page - Microchip Technology