lxt384 Intel Corporation, lxt384 Datasheet - Page 57

• Manufacturer Part Number: lxt384
• Description: Octal T1/e1/j1 Short Haul Transceiver
• Manufacturer: Intel Corporation

Document Number: 248994
Revision Number: 004
Revision Date: September 22, 2005
Table 21. Component Values to Use with Transformer Circuit
Table 22. Transmitter Transformer Turns Ratio Selection
Table 21
power used and the type of cable with which the component is used.
Table 22
R
R
R
Characteristic Impedance
Standard 75/120Ω
characteristic impedance
Low-power 75/120Ω
characteristic impedance
T
T
R
Low-Power Value
Standard-Power Value
(Receive Resistor)
Component
lists the component values to use with the
lists the transmitter transformer turns ratios that can selected.
Component Value to Use with
Transmitter Transformer
75 Ω Coaxial Cable
Intel
9.31 Ω ± 1%
Turns Ratio
10 Ω ± 1%
11 Ω ± 1%
1:1.7
1:2
®
LXT384 Octal T1/E1/J1 S/H PCM Transceiver with JA
Figure 6
Component Value to Use with
Component Value to Use with
circuit, depending on the type of
120 Ω Twisted-Pair Cable
120 Ω Twisted-Pair Cable
Rt = 11 Ω ± 1%
Rt = 10 Ω ± 1%
10 Ω ± 1%
15 Ω ± 1%
11 Ω ± 1%
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