IMX28CEC datasheet(30/70 Pages) FREESCALE

部件名	IMX28CEC

功能描述	Processors Data Sheet for Consumer Products

PDF	70 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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30 / 70 page

i.MX28 Applications Processors Data Sheet for Consumer Products, Rev. 1

Freescale Semiconductor

3.5.2.2

Ethernet PLL Electrical Specifications

i.MX28 provides a 50-MHz/25-MHz output clock, called the Ethernet PLL output.

Table 34 lists the Ethernet PLL output electrical specifications.

Table 34. Ethernet PLL Specifications

Parameter

Test Conditions

Min

Typ

Max

Unit

Output Duty Cycle

—

PLL lock time

—

µs

Cycle to cycle jitter

—

Clock output frequency tolerance1

1 This Ethernet output clock tolerance specification is the contribution from the PLL only and assumes a perfect 24 MHz

clock/crystal source with 0 ppm deviation. The 24 MHz crystal frequency tolerance/deviation should be added to this number

for the total Ethernet clock output frequency tolerance.

——

—

+/-20

ppm

IMX28CEC 数据表(PDF) 30 Page - Freescale Semiconductor, Inc