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XRT79L71IB Scheda tecnica(PDF) 96 Page - Exar Corporation

Il numero della parte XRT79L71IB
Spiegazioni elettronici  1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
PDF  109 Pages
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Produttore elettronici  EXAR [Exar Corporation]
Homepage  http://www.exar.com
Logo EXAR - Exar Corporation

XRT79L71IB Scheda tecnica(HTML) 96 Page - Exar Corporation

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XRT79L71
93
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
REV. 1.0.0
t14
TxNib set-up time to third rising edge of TxInClk
20
27
ns
ns
DS3 Applications
E3 Applications
t15
Payload Nibble hold time, from latching edge of
TxInClk
0
ns
t16
TxFrameRef set-up time, to latching edge of TxInClk
20
27
ns
ns
DS3 Applications
E3 Applications
Framer IC is
Frame Slave
t17
TxFrameRef hold time, from latching edge of TxNib-
Clk
0
ns
Framer IC is
Frame Slave
t18
TxNibClk to TxNibFrame output delay time
20
25
31
ns
ns
DS3 Applications
E3 Applications
FIGURE 17. TIMING DIAGRAM FOR THE TRANSMIT PAYLOAD DATA INPUT INTERFACE WHEN THE XRT79L71 IS
OPERATING IN BOTH THE
DS3 AND LOOP-TIMING MODES
TABLE 16: TIMING INFORMATION FO RTHE TRNASMIT PAYLOAD DATA INPUT INTERFACE BLOCK
Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified
SYMBOL
PARAMETER
MIN.TYP.MAX.UNITS
CONDITIONS
XRT79L71 Transmit Payload Data I/F Signals
RxOutClk
TxSer
TxFrame
TxOH_Ind
Payload[4702]
Payload[4703]
X-Bit
Payload[0]
DS3 Frame Number N
DS3 Frame Number N + 1
t1
t2
t3
t4



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