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CS61535A Datasheet(PDF) 12 Page - Cirrus Logic

Part # CS61535A
Description  T1/E1 Line Interface
PDF  36 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS61535A Datasheet(HTML) 12 Page - Cirrus Logic

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500
1.0
0.5
0
-0.5
0
250
750
1000
NORMALIZED
AMPLITUDE
AT&T CB 119
SPECIFICATION
CS61535A
PULSE SHAPE
OUTPUT
TIME (nanoseconds)
Figure 8. Typical Pulse Shape at DSX-1 Cross Connect
LEN2
LEN1
LEN0
OPTION SELECTED
APPLICATION
0
1
1
0-133 FEET
DSX-1
ABAM
(AT&T 600B
or 600C)
100
133-266 FEET
101
266-399 FEET
110
399-533 FEET
111
533-655 FEET
001
AT&T CB113
(CS61535A only)
REPEATER
0
0
0
CCITT G.703
2.048 MHz E1
0
1
0
FCC Part 68, Option A
CSU NETWORK
INTERFACE
0
1
1
ANSI T1.403
Table 3. Line Length Selection
For c o axial cable,
75
Ω
l oad
and
transformer specified
in Application Section.
For shielded twisted
pair, 120
Ω load and
transformer specified
in Application Section.
Nominal peak voltage of a mark (pulse)
2.37 V
3 V
Peak voltage of a space (no pulse)
0
±0.237 V
0
±0.30 V
Nominal pulse width
244 ns
Ratio of the amplitudes of positive and negative
pulses at the center of the pulse interval
0.95 to 1.05*
Ratio of the widths of positive and negative
pulses at the nominal half amplitude
0.95 to 1.05*
* When configured with a 0.47
μF nonpolarized capacitor in series with the TX transformer
primary as shown in Figures A1, A2 and A3.
Table 4. CCITT G.703 Specifications
CS61535A
12
DS40F3
-XO¶
&21),'(17,$/



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