DS3172 Maxim Integrated, DS3172 Datasheet - Page 230

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

Figure 18-9. E3 Waveform Template
Table 18-8. E3 Waveform Test Parameters and Limits
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
230
TIME (ns)
Coaxial cable (AT&T 734A or equivalent)
34.368Mbps (±20ppm)
HDB3
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
8.65
12.1
24.5
29.1
17
SPECIFICATION
Figure
TEMPLATE
18-9.
G.703
E3