Datasheet

Cycle(orPeriod)Jitter
T
n-1
T
n
T
n+1
Max.CycleJitter=Max(T )
i
Min.CycleJitter=Min(T )
i
JitterStandardDeviation(orrmsJitter)=StandardDeviation(T )
i
030-020
AM3517, AM3505
SPRS550E OCTOBER 2009REVISED MARCH 2013
www.ti.com
6 Timing Requirements and Switching Characteristics
Note: The timing data shown is preliminary data and is subject to change in future revisions.
6.1 Timing Test Conditions
All timing requirements and switching characteristics are valid over the recommended operating conditions
of Table 3-3, unless otherwise specified.
6.2 Interface Clock Specifications
6.2.1 Interface Clock Terminology
The Interface clock is used at the system level to sequence the data and/or control transfers accordingly
with the interface protocol.
6.2.2 Interface Clock Frequency
The two interface clock characteristics are:
The maximum clock frequency
The maximum operating frequency
The interface clock frequency documented in this document is the maximum clock frequency, which
corresponds to the maximum frequency programmable on this output clock. This frequency defines the
maximum limit supported by the AM3517/05 IC and doesn't take into account any system consideration
(PCB, peripherals).
The system designer will have to consider these system considerations and AM3517/05 IC timings
characteristics as well, to define properly the maximum operating frequency, which corresponds to the
maximum frequency supported to transfer the data on this interface.
6.2.3 Clock Jitter Specifications
Jitter is a phase noise, which may alter different characteristics of a clock signal. The jitter specified in this
document is the time difference between the typical cycle period and the actual cycle period affected by
noise sources on the clock. The cycle (or period) jitter terminology identifies this type of jitter.
Figure 6-1. Cycle (or Period) Jitter
106 Timing Requirements and Switching Characteristics Copyright © 2009–2013, Texas Instruments Incorporated
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