參數(shù)資料
型號: CN8223EPF
英文描述: ATM/SONET TRANSCEIVER|CMOS|QFP|160PIN|PLASTIC
中文描述: 的ATM / SONET的收發(fā)器|的CMOS | QFP封裝| 160PIN |塑料
文件頁數(shù): 142/161頁
文件大?。?/td> 1865K
代理商: CN8223EPF
Transmit Clock Pulse Width High
(1)
4.0 Electrical and Mechanical Specifications
CN8223
4.3 Timing
ATM Transmitter/Receiver with UTOPIA Interface
4-8
Conexant
100046D
Figure 4-3. Line Interface Timing
Internal Framers
TXCKI,TXCKIHS
TCLKO
TXDATO
13
9
12
11
10
7
4
2
3
6
5
1
TXPOS, TXNEG
RXCKI,RXCKIHS
RXPOS, RXNEG
RXDATI
8
8
Table 4-5. Parallel Interface Timing
Name
Interval
Description
Min
Max
ttxcki
1
4
Transmit Clock Period
50
ttxh
4
5
20
tcid
1
2
Transmit Clock In to Data Out
4.6
16.5
tcdel
1
3
Transmit Clock In to Delineation Out
3.9
14.6
tdscr
6
7
Transmit Disable Setup to Transmit Clock Rising Edge
0
tdhcf
8
9
Transmit Disable Hold after Transmit Clock Falling Edge
3.0
trxcki
11
15
Receive Clock Period
50
trxh
11
13
Receive Clock Pulse Width High
(1)
20
tdck
10
11
Receive Data Setup to Receive Clock Falling Edge
2.3
tckd
11
14
Receive Data Hold After Receive Clock Falling Edge
3.7
tdsck
12
13
Receive Disable Setup to Receive Clock Rising Edge
3.0
tckds
15
16
Receive Disable Hold after Receive Clock Falling Edge
3.0
NOTE(S):
(1)
Duty cycle must be 45/55 at maximum input clock rate.
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