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| 型號(hào)： | TNET3001 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SONET STS-1 Overhead Terminator(SONET STS-1附加終端) |
| 中文描述： | SONET的STS - 1的開(kāi)銷終結(jié)者（SONET的STS - 1的附加終端） |
| 文件頁(yè)數(shù)： | 16/49頁(yè) |
| 文件大?。?/td> | 1090K |
| 代理商： | TNET3001 |
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TNETS3001
SONET STS-1 OVERHEAD TERMINATOR
SDNS007B – OCTOBER 1993 – REVISED JUNE 1995
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics, C
L
= 15 pF (see Note 4 and Figure 9)
NO.
MIN
TYP
MAX
UNIT
1
tc(TPCO)
tw(TPCOH)
tw(TPCOL)
td(TPDO)
td(RSPE)
td(RSYN)
Clock cycle time, TPCO
154.3
ns
2
Pulse duration, TPCO high
77.2
ns
3
Pulse duration, TPCO low
77.2
ns
4
Delay time, TPCO
↑
to TPDO
ns
4
Delay time, TPCO
↑
to RSPE
↓
ns
5
Delay time, TPCO
↑
to RSYN
↑
ns
NOTE 4: Timing intervals are measured at (VOH–VOL)/2 or (VIH–VIL)/2 as applicable.
A1
TPDO7–TPDO0
(output)
RSPE
(output)
(see Note A)
TPCO
(output)
1
4
2
3
A2
C1
J1
RSYN
(output)
(see Note B)
5
C1
J1
NOTES: A. Pointer movements are indicated by RSPE in subframe No. 4.
B. J1 can be anywhere in the payload.
Figure 9. Terminal Parallel STS-1 and Parallel SPE-Only Output Timing
timing requirements, C
L
= 15 pF (see Note 4 and Figure 10)
NO.
MIN
NOM
MAX
UNIT
1
tc(TPCI)
tw(TPCIH)
tw(TPCIL)
tsu(TPDI)
th(TPDI)
Clock cycle time, TPCI
154.3
ns
2
Pulse duration, TPCI high
77.2
ns
3
Pulse duration, TPCI low
77.2
ns
4
Setup time, TPDI valid before TPCI
↑
ns
5
Hold time, TPDI valid after TPCI
↑
ns
NOTE 4: Timing intervals are measured at (VOH–VOL)/2 or (VIH–VIL)/2 as applicable.
Figure 10. Terminal Parallel STS-1 Input Timing
TPDI7–TPDI0
TPCI
(input)
1
2
4
5
3
Don’t Care
Don’t Care
P
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