XRT7300 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT7300' PDF : 55 Pages View PDF
áç
XRT7300
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.1.1
AC ELECTRICAL CHARACTERISTICS (CONTINUED) (TA = 25°C, VDD = 5.0V + 5%, UNLESS OTHER-
WISE SPECIFIED)
Line Side Parameters
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNITS
E3 Application Parameters
Transmit Line Characteristics (See Figure 5)
Transmit Output Pulse Amplitude (Measured at Secondary Out- 0.9
1.00
1.1
Vpk
put of Transformer)
Transmit Output Pulse Amplitude Ratio
0.95
1.00
1.05
Transmit Output Pulse Width
12.5
14.55
16.5
ns
Transmit Output Pulse Width Ratio
0.95
1.00
1.05
Transmit Output Jitter with jitter-free input clock at TCLK
0.02
0.05
UIpp
Receive Line Characteristics
Receive Sensitivity (Length of cable)
1100
feet
Interference Margin
-20
-17
dB
Signal Level to Declare Loss of Signal
-35
dB
Signal Level to Clear Loss of Signal
-15
dB
Occurrence of LOS to LOS Declaration Time
10
100
255
UI
Termination of LOS to LOS Clearance Time
10
100
255
UI
Intrinsic Jitter (all "1’s" Pattern) (1)
0.01
UI
Intrinsic Jitter (100 Pattern)
0.03
Max Jitter Tolerance @ Jitter Frequency = 100Hz
64
UI
Max Jitter Tolerance @ Jitter Frequency = 1KHz
30
UI
Max Jitter Tolerance @ Jitter Frequency = 10KHz
4
UI
Max Jitter Tolerance @ Jitter Frequency = 800KHz
0.15
UI
SONET STS-1 Application Parameters
Transmit Line Characteristics (See Figure 5)
Transmit Output Pulse Amplitude (Measured with TXLEV = 0)
0.68
0.75
0.85
Vpk
Transmit Output Pulse Amplitude (Measured with TXLEV = 1)
0.93
0.98
1.08
Vpk
Transmit Output Pulse Width
8.6
9.65
10.6
ns
Transmit Output Pulse Amplitude Ratio
0.9
1.0
1.1
Transmit Output Jitter with jitter-free clock input at TCLK
0.02
0.05
UIpp
13
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