XRT7300
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.1.1
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AC ELECTRICAL CHARACTERISTICS (CONTINUED) (TA = 25°C, VDD = 5.0V + 5%, UNLESS OTHER-
WISE SPECIFIED)
Line Side Parameters
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNITS
Receive Line Characteristics
Receive Sensitivity (Length of cable)
900
feet
Signal Level to Declare or Clear Loss of Signal (see Table 4)
mV
Intrinsic Jitter (all "1’s" Pattern) (2)
0.03
UI
Intrinsic Jitter (100 Pattern)
0.03
UI
Max Jitter Tolerance @ Jitter Frequency = 100Hz
64
UI
Max Jitter Tolerance @ Jitter Frequency = 1KHz
64
UI
Max Jitter Tolerance @ Jitter Frequency = 10KHz
5
UI
Max Jitter Tolerance @ Jitter Frequency = 800KHz
0.4
UI
(1) Measured with Equalizer enabled, 12db cable attenua-
tion, VDD = 5V and TA = 25°C
(2) Measured at nominal STSX-1 level with Equalizer en-
abled, VDD = 5V and TA = 25°C
ABSOLUTE MAXIMUM RATINGS
POWER SUPPLY
-0.5 TO +6.5V
STORAGE TEMPERATURE
INPUT VOLTAGE AT ANY PIN
POWER DISSIPATION TQFP PACKAGE
INPUT CURRENT AT ANY PIN
ESD RATING (MIL-STD-883, M-3015)
-65OC TO 150OC
-0.5V TO VDD +0.5V
1.2W
+100MA
AT LEAST 1500V
Figure 5 presents the test circuit that was used to test
and measure the pulse amplitudes as listed in the
ELECTRICAL CHARACTERISTICS tables.
Figure 6, Figure 7 and Figure 8 present the Pulse
Template requirements for the E3, DS3 and STS-1
Rates.
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