PM7311 pmc-sierra, PM7311 Datasheet - Page 283
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PM7311
Manufacturer Part Number
PM7311
Description
Freedm 84a1024l Assp Telecom Standard Datasheet
Manufacturer
pmc-sierra
Datasheet
1.PM7311.pdf
(296 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021832, Issue 2
19
19.1 SBI Bus Interface Timing
A.C. Timing Characteristics
Notes on Input Timing:
1. When a set-up time is specified between an input and a clock, the set-up time is the time in
2. When a hold time is specified between an input and a clock, the hold time is the time in
Notes on Output Timing:
1. Output propagation delay time is the time in nanoseconds from the 1.4 Volt point of the
2. Loads used to measure maximum output propagation delays are specified with each table.
3. 0pF load is used to measure minimum output propagation delays.
Output tristate delay is the time in nanoseconds from the 1.4 Volt point of the reference signal to
the point where the total current delivered through the output is less than or equal to the leakage
current transfer.
Table 56 REFCLK Timing
Symbol
f CLK
D CLK
Figure 62 SBI336 Drop Bus Input Interface Timing
nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt point of the clock.
nanoseconds from the 1.4 Volt point of the clock to the 1.4 Volt point of the input.
reference signal to the 1.4 Volt point of the output.
Description
Frequency, REFCLK =77.76MHz (SBI336)
OR
Frequency, REFCLK =19.44MHz (SBI)
Duty Cycle, REFCLK
D D A T A [7 :0 ]
R E F C L K
D C 1 F P
D D P
D P L
D V 5
FREEDM 84A1024L ASSP Telecom Standard Product Data Sheet
tS D D P
tS D D A T A
tS C 1 F P
tS D P L
tS D V 5
tH D D P
tH D D A T A
tH C 1 F P
tH D P L
tH D V 5
Min
-20
-50
40
Max
+20
+50
60
Units
ppm
ppm
%
Released
283
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