參數(shù)資料
型號: MT8976AE
廠商: Mitel Networks Corporation
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 22/26頁
文件大?。?/td> 337K
代理商: MT8976AE
MT8976
ISO-CMOS
4-50
Timing is over recommended temperature & power supply voltage ranges.
Typical figures are at 25°C and are for design aid only; not guaranteed and not subject to production testing.
Figure 19 - Transmit Timing for DS1 Link
Figure 20 - Receive Timing for DS1 Link (see Note 1)
Note 1:
The parameters t
RDS
and t
RDH
are related to device functionality. Network constraints may require tighter tolerances than the device
specifications.
AC Electrical Characteristics
- DS1 Link Timing (Figures 19 & 20)
Parameters
Sym
Min
Typ
Max
Units
Test Conditions
1
Transmit Steering Delay
t
TSD
50
150
ns
150 pF Load
2
Transmit Steering Transition Time
t
TST
30
ns
150 pF Load
3
Received Steering Setup Time
t
RSS
0
ns
4
Received Steering Hold Time
t
RSH
30
ns
5
Received Data Setup Time
t
RDS
-15
ns
See Note 1
6
Received Data Hold Time
t
RDH
60
ns
See Note 1
7
C1.5i Period
t
PC1.5
500
648
800
ns
8
C1.5i Pulse Width High or Low
t
WC1.5
250
324
ns
t
PC1.5
= 648 ns
Bit Cells
Received DS1 Link
Bit Cells
Bit Cell
RxA
or
RxB
2.0V
0.8V
RxD
2.0V
0.8V
E1.5i
2.0V
0.8V
t
RSS
t
RSH
t
RDS
t
RDH
Transmitted DS1 Link
Bit Cell
C1.5i
2.0V
0.8V
TxA
or
TxB
2.4V
0.4V
t
TST
t
TSD
t
TSD
t
TST
t
PC1.5
t
WC1.5
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