SM802101 データシートの表示（PDF） - Micrel

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SM802101

ClockWorks™ PCI-e Octal 100MHz/200MHz Ultra-Low Jitter, HCSL Frequency Synthesizer

Micrel 

Micrel, Inc.

SM802101

AC Electrical Characteristics(4, 5)

VDD = VDDO1/2 = 3.3V ±5% or 2.5V ±5%

VDD = 3.3V ±5%, VDDO1/2 = 3.3V ±5% or 2.5V ±5%

TA = −40°C to +85°C. RL = 50Ω to VSS

Symbol

Parameter

FOUT1

FOUT2

FREF

TR/TF

ODC

Output Frequency

Output Frequency

Reference Input Frequency

LVPECL Output Rise/Fall Time

Output Duty Cycle

FSEL=1

FSEL=0

20% – 80%

TSKEW

TLOCK

Output-to-Output Skew

PLL Lock Time

Note 6

Condition

Min.

150

48

Typ.

100

200

25

300

50

Max.

450

52

45

20

Units

MHz

MHz

MHz

ps

%

ps

ms

100MHz

Integration Range (1.875MHz – 20MHz)

105

Tjit(∅)

RMS Phase Jitter(7)

Integration Range (12kHz – 20MHz)

200MHz

250

fs

Integration Range (1.875MHz – 20MHz)

100

Integration Range (12kHz – 20MHz)

250

Spurious Noise Components

25MHz using 100MHz

25MHz using 200MHz

-85

dBc

-90

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; 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.

July 2011

6

M9999-072111-A

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

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