SM802117UMG datasheet(6/10 Pages) MICREL

부품명	SM802117UMG

상세설명	ClockWorks??GbE (125MHz) Ultra-Low Jitter, LVPECL Frequency Synthesizer

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제조업체	MICREL [Micrel Semiconductor]

홈페이지	http://www.micrel.com

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6 / 10 page

Micrel, Inc.

SM802117

October 2011

6

M9999-101311-B

hbwhelp@micrel.com or (408) 955-1690

AC Electrical Characteristics

(4, 5)

VDD = VDDO1/2 = 3.3V ±5% or 2.5V ±5%

VDD = 3.3V ±5%, VDDO1/2 = 2.5V ±5%

TA = −40°C to +85°C. RL = 50Ω to VDDO − 2V

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

FOUT

Output Frequency

125

MHz

FREF

Reference Input Frequency

25

MHz

TR/TF

LVPECL Output Rise/Fall Time

20% – 80%

80

175

350

ps

ODC

Output Duty Cycle

48

50

52

%

TSKEW

Output-to-Output Skew

Within bank. Note

6

45

ps

TLOCK

PLL Lock Time

20

ms

Tjit(∅)

RMS Phase Jitter

(7)

125MHz

Integration Range (1.875MHz – 20MHz)

Integration Range (12kHz – 20MHz)

115

254

fs

Spurious Noise Components

25MHz

-85

dBc

Notes:

5.

All phase noise measurements were taken with an Agilent 5052B phase noise system.

6.

Defined as skew between outputs at the same supply voltage and with equal load conditions and same frequency; Measured at the output

differential crossing points.

7.

Measured using 25MHz crystal as the input reference source. If using an external reference input, use a low phase noise source. With an external

reference, the phase noise will follow the input source phase noise up to about 1MHz.

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	SM843251-156	340Kb / 7P	ClockWorks??10-Gigabit Ethernet, 156.25MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer
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SM802117UMG 데이터시트(PDF) 6 Page - Micrel Semiconductor

SM802117UMG 데이터시트(HTML) 6 Page - Micrel Semiconductor

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