SI5321 datasheet(9/34 Pages) SILABS

部件名	SI5321

功能描述	SONET/SDH PRECISION CLOCK MULTIPLIER IC

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制造商	SILABS [Silicon Laboratories]

网页	http://www.silabs.com

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9 / 34 page

Si5321

Rev. 2.5

9

Transitionless Period Required

on CLKIN for Detecting a LOS

Condition.

INFRQSEL[2:0] = 001

INFRQSEL[2:0] = 010

INFRQSEL[2:0] = 011

INFRQSEL[2:0] = 100

INFRQSEL[2:0] = 101

INFRQSEL[2:0] = 110

tLOS

Figure 3

24/

fo_622

16/

fo_622

12/

fo_622

10/

fo_622

9/

fo_622

8/

fo_622

—

32/

fo_622

32/

fo_622

32/

fo_622

32/

fo_622

32/

fo_622

32/

fo_622

s

Recovery Time for Clearing an

LOS Condition

VALTIME = 0

VALTIME = 1

tVAL

Measured from when a

valid reference clock is

applied until the LOS flag

clears

1.6

90

—

3.2

220

ms

Table 3. AC Characteristics (Continued)

(VDD33 =3.3 V ±5%, TA = –20 to 85 °C)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Note: The Si5321 provides a 1/32x, 1/16x, 1/8x, 1/4x, 1/2x, 1x, 2x, 4x, 8x, 16x, 32x, 64x, or 128x clock multiplication function

with an option for additional frequency scaling by a factor of 255/238, 238/255, 255/237, 237/255, 66/64, or 64/66 for

FEC rate conversion.

类似零件编号 - SI5321

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Skyworks Solutions Inc.	SI5321-G-BC	625Kb / 34P	SONET/SDH PRECISION CLOCK MULTIPLIER IC Revision 2.0 to Revision 2.1
Skyworks Solutions Inc.	SI5321-H-BL	625Kb / 34P	SONET/SDH PRECISION CLOCK MULTIPLIER IC Revision 2.0 to Revision 2.1

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