tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 45
tmxf28155
Manufacturer Part Number
tmxf28155
Description
Tmxf28155 Super Mapper 155/51 Mbits/s Sonet/sdh X28/x21 Ds1/e1
Manufacturer
ETC-unknow
Datasheet
1.TMXF28155.pdf
(606 pages)
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Preliminary Data Sheet
May 2001
5 Timing Characteristics
5.4 VT Mapper Timing
5.4.1 VT Mapper Lower-Order Path Overhead Interface Timing
Table 34. VT Mapper Receive Path Overhead Detailed Timing
Agere Systems Inc.
Symbol
t
CLKHI
t
t
t
PDD
f
t
t
t
t
PDV
CK
CK
t
SD
HD
SV
HV
t
R
F
Clock Frequency
Clock Period
Clock Pulse High Time
Clock Rise Time
Clock Fall Time
LOPOH Data Setup Time
LOPOH Data Hold Time
LOPOH Valid Signal Setup Time
LOPOH Valid Signal Hold Time
Clock to LOPOH Valid Signal Out
Clock to LOPOH Data Out
LOPOHVALIDOUT
LOPOHDATAOUT
Figure 8. VT Mapper Transmit Path Overhead Detailed Timing
Figure 9. VT Mapper Receive Path Overhead Detailed Timing
LOPOHCLKOUT
L O P O H VA L ID IN
L O P O H D ATA IN
L O PO H C LK IN
Parameter
(continued)
t
t
PDV
PDD
t
t
SD
SV
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
t
C K
t
CK
t
t
HV
HD
6.48
Min
154
50
0
0
5
0
5
0
0
0
TMXF28155/51 Super Mapper
Max
6.48
154
75
—
—
—
—
3
3
5
5
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5-9078(F)
5-9079(F)
45
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