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USB7002/KDX 数据表(PDF) 46 Page - Microchip Technology

部件名 USB7002/KDX
功能描述  4-Port USB 3.2 Gen 1 SmartHub??IC
PDF  56 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB7002/KDX 数据表(HTML) 46 Page - Microchip Technology

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USB7002
DS00002670G-page 46
 2022 Microchip Technology Inc. and its subsidiaries
9.7
Clock Specifications
The device can accept either a 25MHz crystal or a 25MHz single-ended clock oscillator input. If the single-ended clock
oscillator method is implemented, XTALO should be left unconnected and XTALI/CLK_IN should be driven with a
nominal 0-3.3V clock signal. The input clock duty cycle is 40% minimum, 50% typical and 60% maximum.
It is recommended that a crystal utilizing matching parallel load capacitors be used for the crystal input/output signals
(XTALI/XTALO). The following circuit design (Figure 9-6) and specifications (Table 9-9) are required to ensure proper
operation.
FIGURE 9-6:
25MHZ CRYSTAL CIRCUIT
USB7002
XTALO
XTALI
Y1
C1
C2



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