DS21448DK Maxim Integrated Products, DS21448DK Datasheet - Page 35
DS21448DK
Manufacturer Part Number
DS21448DK
Description
KIT DESIGN LIU DS21448 T1/J1/E1
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21448L.pdf
(60 pages)
Specifications of DS21448DK
Main Purpose
Telecom, Line Interface Units (LIUs)
Utilized Ic / Part
DS21448
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Table 7-C. Line Build-Out Select for E1 in Register CCR4 (ETS = 0) Using Alternate
Transformer Configuration
Note: See
Table 7-D. Transformer Specifications (3.3V Operation)
Turns Ratio
Primary Inductance
Leakage Inductance
Interwinding Capacitance
TRANSMIT TRANSFORMER DC RESISTANCE
Primary (Device Side)
Secondary
RECEIVE TRANSFORMER DC RESISTANCE
Primary (Device Side)
Secondary
L2
0
0
1
1
L1
0
0
0
0
Figure
L0
7-4.
0
1
0
1
SPECIFICATION
120Ω with high return loss
75Ω with high return loss
APPLICATION
120Ω normal
75Ω normal
1:1 (receive) and 1:2 (transmit) ±2%
600µH (min)
1.0µH (max)
40pF (max)
1.0Ω (max)
1.5Ω (max)
1.2Ω (max)
1.2Ω (max)
35 of 60
0.8:1:1CT
0.8:1:1CT
0.8:1:1CT
0.8:1:1CT
N
RECOMMENDED VALUE
RETURN LOSS
21dB
21dB
N.M.
N.M.
R
11.6
11.6
t
0
0
(Ω)
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