XRT7302IV View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT7302IV' PDF : 62 Pages View PDF
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2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT7302
REV. 1.1.6
ELECTRICAL CHARACTERISTICS (CONTINUED) (TA = 250C, VDD = 5V + 5%, UNLESS OTHERWISE SPECIFIED)
AC ELECTRICAL CHARACTERISTICS (SEE ƒIGURE 1)
TERMINAL SIDE TIMING PARAMETERS (SEE ƒIGURE 2 AND ƒIGURE 3)
SYMBOL
PARAMETER
TxClk(n), TxClk(n) Clock Duty Cycle (DS3/STS-1)
TxClk(n), TxClk(n) Clock Duty Cycle (E3)
TxClk(n), TxClk(n) Frequency (SONET STS-1)
MIN.
30
30
TYP.
50
50
51.84
MAX.
70
70
UNITS
%
%
MHz
TxClk(n), TxClk(n) Frequency (DS3)
44.736
MHz
TxClk(n), TxClk(n) Frequency (E3)
34.368
MHz
tRTX TxClk(n), TxClk(n) Clock Rise Time (10% to 90%)
4.0
ns
tFTX TxClk(n), TxClk(n) Clock Fall Time (90% to 10%)
4.0
ns
tTSU TPData/TNData to TxClk(n) Falling Set up time
3.0
ns
tTHO TPData/TNData to TxClk(n) Falling Hold time
3.0
ns
tLCVO RxClk(n) to rising edge of LCV(n) output delay
2.5
ns
tTDY TTIP(n)/TRing(n) to TxClk(n) Rising Propagation Delay time
0.6
14.0
ns
RxClk(n), RxClk(n)Clock Duty Cycle
45
50
55
%
RxClk(n), RxClk(n) Frequency (SONET STS-1)
51.84
MHz
RxClk(n), RxClk(n) Frequency (DS3)
44.736
MHz
RxClk(n), RxClk(n) Frequency (E3)
34.368
MHz
tCO RxClk(n) to RPOS(n)/RNEG(n) Delay Time
4.0
ns
tRRX RxClk(n), RxClk(n) Clock Rise Time (10% to 90%)
2.0
4.0
ns
tFRX RxClk(n), RxClk(n) Clock Fall Time (10% to 90%)
1.5
3.0
ns
CI
Input Capacitance
10
pF
CL Load Capacitance
10
pF
15
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