XRT75VL00D_08 Datasheet, PDF (26/92 Pages) Exar Corporation – E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET

XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.4
TABLE 6: DS3 PULSE MASK EQUATIONS
TIME IN UNIT INTERVALS
-0.85 < T < -0.36
-0.36 < T < 0.36
LOWER CURVE
NORMALIZED AMPLITUDE
- 0.03
0.5 1 + sin ^π-2- _1 + _0---.-^T-1---8- _ – 0.03
0.36 < T < 1.4
-0.85 < T < -0.68
-0.68 < T < 0.36
- 0.03
UPPER CURVE
0.03
0.5
1
+
sin
π_--
2


1
+
0---.-^{T-3---4- }
+ 0.03
0.36 < T < 1.4
0.08 + 0.407 x e^{-1.84[T-0.36]}
TABLE 7: DS3 TRANSMITTER AND RECEIVER LINE SIDE SPECIFICATIONS (TA = 25⁰C AND VDD = 3.3V ± 5%)
PARAMETER
MIN
TYP
MAX
TRANSMITTER LINE SIDE OUTPUT CHARACTERISTICS
Transmit Output Pulse Amplitude
(measured with TxLEV = 0)
Transmit Output Pulse Amplitude
(measured with TxLEV = 1)
0.65
0.75
0.85
0.90
1.00
1.10
Transmit Output Pulse Width
Transmit Output Pulse Amplitude Ratio
10.10
0.90
11.18
1.00
12.28
1.10
Intrinsic Jitter
0.02
0.05
RECEIVER LINE SIDE INPUT CHARACTERISTICS
Receiver Sensitivity (length of cable)
Jitter Tolerance @ 400 KHz (Cat II)
900
1100
0.15
0.60
Signal Level to Declare Loss of Signal
Refer to Table 10
Signal Level to Clear Loss of Signal
Refer to Table 10
UNITS
V_pk
V_pk
ns
UI_pp
feet
UI_pp
21