SM802149UMGR datasheet(6/11 Pages) MICREL

部品番号	SM802149UMGR

部品情報	156.25MHz/312.5MHz and 78.125MHz/156.25MHz LVDS Clock Synthesizer

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メーカー	MICREL [Micrel Semiconductor]

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Micrel, Inc.

SM802149

March 1, 2013

6

Revision 1.1

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

Crystal Characteristics

Parameter

Condition

Min.

Typ.

Max.

Units

Mode of Oscillation

10pF load

Fundamental, Parallel Resonant

Frequency

26.04166

MHz

Equivalent Series Resistance (ESR)

50

Ω

Shunt Capacitor, C0

1

5

pF

Correlation Drive Level

10

100

µW

LVDS OUTPUT DC Electrical Characteristics

(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 = 100

Ω across Q and /Q.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

VOD

Differential Output Voltage

Figure 1, Figure 4

275

350

475

mV

ΔVOD

VOD Magnitude Change

40

mV

VOS

Offset Voltage

1.15

1.25

1.50

V

ΔVOS

VOS Magnitude Change

50

mV

AC Electrical Characteristics

(5, 6)

VDD = VDDO1/2 = 3.3V ±5% or 2.5V ±5%, VDD = 3.3V ±5%, VDDOX1/2= 3.3V ±5% or 2.5V ±5%, TA = −40°C to +85°C.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

FOUT

Output Frequency 1

FSEL = 1, Q1

−Q4

312.5

MHz

Output Frequency 2

FSEL = 1, Q5–Q8

156.25

MHz

FOUT

Output Frequency 1

FSEL = 0, Q1–Q4

156.25

MHz

Output Frequency 2

FSEL = 0, Q5–Q8

78.125

MHz

TR/TF

Output Rise/Fall Time

20%–80%, Figure 2, Figure 4

100

220

400

ps

TSKEW

Output-to-Output Skew

Within bank. Note 7

45

ps

ODC

Output Duty Cycle

LVDS outputs

48

50

52

%

TLOCK

PLL Lock Time

20

ms

RMS Phase Jitter

(8)

(Output = 156.25MHz)

Integration range: 12kHz–20MHz

260

fs

Integration range: 1.875MHZ–20MHz

105

fs

RMS Phase Jitter

(8)

(Output = 312.5MHz)

Integration range: 12kHz–20MHz

250

fs

Integration range: 1.875MHz–20MHz

99

fs

Notes:

6.

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

7.

Defined as skew between outputs at the same supply voltage and with equal load conditions; Measured at the output differential crossing points.

8.

Measured using a 26.04166 MHz 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.

同様の部品番号 - SM802149UMGR

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