XRT72L56 Datasheet, PDF (50/486 Pages) Exar Corporation – SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
áç
PRELIMINARY
AC ELECTRICAL CHARACTERISTICS (CONT.)
Test Conditions: TA = 25(C, VCC = 3.3V + 5% unless otherwise specified
SYMBOL
PARAMETER
MIN. TYP.
Transmit Overhead Input Interface Timing - Method 1 (Figure 7)
t₂₁ "TxOHClk" to "TxOHFrame" output delay
930
110
28
t₂₂ "TxOHIns" set-up time, to falling edge of "TxOHClk" 100
50
15
t₂₃ "TxOHIns" hold time, from falling edge of "TxOHClk" 100
60
17
t₂₄ "TxOH" data set-up time, to falling edge of "TxO-
100
HClk"
50
15
t₂₅ "TxOH" data hold time, from falling edge of "TxO-
100
HClk"
60
17
Transmit Overhead Data Input Interface - Method 2 (Figure 8)
t₂₆ “TXOHIns” to “TxInClk” (falling edge) set-up Time
920
140
20
MAX. UNITS
CONDITIONS
955
ns DS3 Applications
125
ns E3, ITU-T G.832
Applications
31
ns E3, ITU-T G.751
Applications
ns DS3 Applications
ns E3, ITU-T G.832
Applications
ns E3, ITU-T G.751
Applications
ns DS3 Applications
ns E3, ITU-T G.832
Applications
ns E3, ITU-T G.751
Applications
ns DS3 Applications
ns E3, ITU-T G.832
Applications
ns E3, ITU-T G.751
Applications
ns DS3 Applications
ns E3, ITU-T G.832
Applications
ns E3, ITU-T G.751
Applications
ns DS3 Applications
ns E3, ITU-T G.832
Applications
ns E3, ITU-T G.751
Applications
31