PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

PMC-971239

ISSUE 6

SATURN USER NETWORK INTERFACE (155-QUAD)

 

 

 

18 A.C. TIMING CHARACTERISTICS

(TA = -40°C to +85°C, V DD = 3.3V ±10%)

18.1 System Reset Timing

Table 17: RSTB Timing (Figure 26)

Symbol

Description

Min

Max

Units

 

 

 

 

 

tVRSTB

RSTB Pulse Width

100

 

ns

Figure 26: RSTB Timing Diagram

tVRSTB

RSTB

18.2 Reference Timing

Line Side Reference Clock

Symbol

Description

Min

Max

Units

 

 

 

 

 

 

REFCLK Nominal Frequency

19.44

19.44

MHz

 

 

 

 

 

 

REFCLK Duty Cycle

30

70

%

 

 

 

 

 

 

REFCLK Frequency Tolerance

-50

+50

ppm

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

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PMC-Sierra PM5349 manual 18 A.C. Timing Characteristics, Rstb Pulse Width 100