DS3251+ Maxim Integrated Products, DS3251+ Datasheet - Page 30
DS3251+
Manufacturer Part Number
DS3251+
Description
IC LIU DS3/E3/STS-1 144-CSBGA
Manufacturer
Maxim Integrated Products
Type
Line Interface Units (LIUs)r
Specifications of DS3251+
Number Of Drivers/receivers
1/1
Protocol
DS3
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
144-CSBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 9-E. E3 Waveform Test Parameters and Limits
Figure 9-1. E3 Waveform Template
Rate
Line Code
Transmission Medium
Test Measurement Point
Test Termination
Pulse Amplitude
Pulse Shape
Ratio of the Amplitudes of Positive and Negative
Pulses at the Center of the Pulse Interval
Ratio of the Widths of Positive and Negative Pulses
at the Nominal Half Amplitude
-0.1
-0.2
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
PARAMETER
34.368Mbps (±20ppm)
HDB3
Coaxial cable (AT&T 734A or equivalent)
At the transmitter
75Ω (±1%) resistive
1.0V (nominal)
An isolated pulse (preceded by two zeros and
followed by one or more zeros) falls within the
template shown in
0.95 to 1.05
0.95 to 1.05
TIME (ns)
30 of 71
8.65
12.1
24.5
29.1
17
SPECIFICATION
Figure
9-1.
TEMPLATE
G.703
E3
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