XRT83SL314IB View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT83SL314IB' PDF : 85 Pages View PDF
XRT83SL314
REV. 1.0.1
xr
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
TABLE 5: TIMING SPECIFICATIONS FOR RCLK/RPOS/RNEG
PARAMETER
SYMBOL
MIN
TYP
MAX
RCLK Duty Cycle
RCDU
45
50
55
Receive Data Setup Time
RSU
150
-
-
Receive Data Hold Time
RHO
150
-
-
RCLK to Data Delay
RDY
-
-
40
RCLK Rise Time (10% to 90%)
RCLKR
-
with 25pF Loading
-
40
RCLK Fall Time (90% to 10%)
RCLKF
-
with 25pF Loading
-
40
UNITS
%
ns
ns
ns
ns
ns
NOTE: VDD=3.3V ±5%, TA=25°C, Unless Otherwise Specified
2.6.1 Receive Sensitivity
To meet short haul requirements, the XRT83SL314 can accept T1/E1/J1 signals that have been attenuated by
12dB of flat loss in E1 mode or by 655 feet of cable loss along with 6dB of flat loss in T1 mode. However, the
XRT83SL314 can tolerate cable loss and flat loss beyond the industry specifications. The receive sensitivity in
the short haul mode is approximately 4,000 feet without experiencing bit errors, LOF, pattern synchronization,
etc. Although data integrity is maintained, the RLOS function (if enabled) will report an RLOS condition
according to the receiver loss of signal section in this datasheet. The test configuration for measuring the
receive sensitivity is shown in Figure 11.
FIGURE 11. TEST CONFIGURATION FOR MEASURING RECEIVE SENSITIVITY
W&G ANT20
Network
Analyzer
Tx
Cable Loss
Rx
E1 = PRBS 215 - 1
T1 = PRBS 223 - 1
Rx
Flat Loss
XRT83SL314
External Loopback
14-Channel
Tx
Long Haul LIU
21
Share Link: 
