參數(shù)資料
型號: XRT79L72IB
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: 2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
中文描述: ATM NETWORK INTERFACE, PBGA456
封裝: 27 X 27 MM, 1 MM PITCH, PLASTIC, BGA-456
文件頁數(shù): 62/72頁
文件大?。?/td> 441K
代理商: XRT79L72IB
XRT79L72
REV. P1.0.2
PRELIMINARY
2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
xr
59
TRANSMIT OVERHEAD DATA INPUT INTERFACE
TRANSMIT OVERHEAD DATA INPUT INTERFACE - TIMING REQUIREMENTS
T
ABLE
10: T
IMING
I
NFORMATION
FOR
THE
T
RANSMIT
O
VERHEAD
D
ATA
I
NPUT
I
NTERFACE
B
LOCK
Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified
S
YMBOL
P
ARAMETER
M
IN
.
T
YP
.
M
AX
.
U
NITS
C
ONDITIONS
Transmit Overhead Input Interface Timing - Method 1 (
Figure 15
)
t
21
TxOHClk to TxOHFrame output delay
111
0
0
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
t
22
TxOHIns set-up time, to falling edge of TxOHClk
194
305
17
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
t
23
TxOHIns hold time, from falling edge of TxOHClk
48
110
7
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
t
24
TxOH data set-up time, to falling edge of TxOHClk
194
305
17
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
t
25
TxOH data hold time, from falling edge of TxOHClk
48
110
7
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
Transmit Overhead Data Input Interface - Method 2 (
Figure 16
)
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