USB5806CSLASHKD datasheet(52/61 Pages) MICROCHIP

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USB5806C

DS00003173B-page 47



2019 - 2021 Microchip Technology Inc.

Note 6: Frequency Deviation Over Time is also referred to as Aging.

Note 7: 0 °C for commercial version, -40 °C for industrial version.

Note 8: +70 °C for commercial version, +85 °C for industrial version.

Note 9: This number includes the pad, the bond wire and the lead frame. PCB capacitance is not included in this

value. The

XTALI/CLKIN 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.

10.7.2

EXTERNAL REFERENCE CLOCK (

CLKIN)

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

Total Allowable PPM Budget

±100

PPM

Note 7

Shunt Capacitance

7 typ

Load Capacitance

20 typ

Drive Level

100

Equivalent Series Resistance

Operating Temperature Range

Note 7

Note 8

XTALI/CLKIN Pin Capacitance

3 typ

Note 9

XTALO Pin Capacitance

3 typ

Note 9

TABLE 10-10: CRYSTAL SPECIFICATIONS (CONTINUED)

PARAMETER

SYMBOL

MIN

NOM

MAX

UNITS

NOTES

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