XRT73L02M Datasheet, PDF (20/46 Pages) Exar Corporation – TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT

XRT73L02M
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
xr
REV. 1.0.0
FIGURE 8. BELLCORE GR-253 CORE TRANSMIT OUTPUT PULSE TEMPLATE FOR SONET STS-1 APPLICATIONS
ST S-1 Pulse T emplate
1.2
1
0.8
0.6
Lower Curve
Upper Curve
0.4
0.2
0
-0.2
-1 _{-0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1}
0 _{0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9}
Time, in UI
1 _{1.1 1.2 1.3 1.4}
TABLE 4: STS-1 PULSE MASK EQUATIONS
TIME IN UNIT INTERVALS
-0.85 < T < -0.38
-0.38 < 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 < 0.26
UPPER CURVE
- 0.03
0.03
0.5 1 + sin ^π-₂- _1 + ₀---_.-^T-₃---₄- _ + 0.03
0.26 < T < 1.4
0.1 + 0.61 x e^-2.4[T-0.26]
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