WJLXT385LE.B1 Cortina Systems Inc, WJLXT385LE.B1 Datasheet - Page 126

• Manufacturer Part Number: WJLXT385LE.B1
• Manufacturer: Cortina Systems Inc

Specifications of WJLXT385LE.B1

• Lead Free Status / RoHS Status: Supplier Unconfirmed

13.0
126
Intel
Table 69. ITU G.703 2.048 Mbit/s Pulse Mask Specifications
Figure 31. ITU G.703 Mask Template
®
LXT385 Octal E1 S/H PCM Transceiver with JA
Note:
Mask Specifications
This chapter discusses the specifications for the mask into which the LXT385 ransceiver
transmitter output pulses must fit. The mask specification has two parts.
For information on pulse shaping, see
Test load impedance
Nominal peak voltage for a mark
Nominal peak voltage for a space
Nominal pulse width
Ratio (in terms of percentage) of the positive mark amplitude to the
negative mark amplitude, with both marks referenced to a space
•
•
Part 1
Part 2
V = 100%
50%
(Table
(Figure
0%
10%
10%
20%
Note: V corresponds to the nominal peak value.
20%
69) lists specifications on how the pulse relates to load resistance.
31) shows the border limits (the mask template) into which the pulse must fit.
10%
10%
Parameter
(244 – 25)
(244 + 244)
(244 + 25)
(244 – 50)
20%
194 ns
219 ns
269 ns
244 ns
488 ns
Section 6.4.2, “Transmitter Pulse
10%
10%
Nominal pulse
Pair Cable
0 ± 0.300
95 to 105
Twisted-
3.00
120
244
Shaping”.
Revision Date: 19-Jan-2006
Document Number: 249252
0 ± 0.237
95 to 105
Coaxial
Revision Number: 006
Cable
2.37
244
75
Ratio
Unit
in %
ns
Ω
V
V