參數(shù)資料
型號(hào): XRT79L74IB
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: 4 - 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(yè)數(shù): 65/70頁(yè)
文件大?。?/td> 547K
代理商: XRT79L74IB
PRELIMINARY
XRT79L74
REV. P1.0.0
4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
63
RECEIVE OVERHEAD DATA OUTPUT INTERFACE
RECEIVE OVERHEAD DATA OUTPUT INTERFACE - TIMING REQUIREMENTS
Table 13, Timing Information for the Receive Overhead Data Output Interface Block
AC ELECTRICAL CHARACTERISTICS (CONT.)
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
Receive Overhead Data Output Interface Timing - Method 1 - Using RxOHClk (see Figure 15)
Falling edge of RxOHClk to RxOHFrame output
t
59A
20
25
20
23
0
ns
ns
ns
DS3 Applications
E3 Applications
DS3 Applications
t
59B
Falling edge of RxOHClk to RxOH output delay
25
23
0
ns
E3 Applications
Receive Overhead Data Output Interface Timing - Method 2 - Using RxOHEnable (see Figure 16)
t
60
Rising edge of RxOutClk to rising edge of
RxOHEnable delay.
2
9.4
ns
t
60A
Rising edge of RxOHFrame to rising edge of
RxOHEnable delay
88
224
28
ns
ns
ns
DS3 Applications
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
DS3 Applications
t
60B
RxOH Data Valid to rising edge of
RxOHEnable delay
88
85
28
ns
ns
ns
E3, ITU-T G.832
Applications
E3, ITU-T G.751
Applications
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