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XRT59L91 Datasheet(PDF) 7 Page - Exar Corporation

Part # XRT59L91
Description  Single-Chip E1 Line Interface Unit
Download  28 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT59L91 Datasheet(HTML) 7 Page - Exar Corporation

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XRT59L91
7
Rev. P2.00
Preliminary
RECEIVER ELECTRICAL CHARACTERISTICS
T
A=-40 to 85°C, VDD=3.3V±5%, unless otherwise specified.
Parameter
Min
Typ
Max
Unit
Test Conditions
Receiver Loss of Signal:
Threshold to Assert
12
20
-
dB
Cable attenuation @ 1024KHz
Threshold to Clear
11
15
dB
Time Delay
10
-
255
bit
per ITU-G.775
Hysteresis
-
5
-
dB
Receiver Sensitivity
11
13
-
dB
Below nominal pulse amplitude of 3.0V
for 120W and 2.37V for 75W applications.
With -18dB interference signal added.
Interference Margin
-18
-14
-
dB
With 6dB cable loss
Input Impedance
-
5
-
KW
Jitter Tolerance:
20Hz
10
700Hz
5
-
-
UIpp
10KHz —100KHz
0.3
Return Loss:
51KHz —102KHz
14
-
-
dB
102KHz—2048KHz
20
-
-
dB
per ITU-G.703
2048KHz—3072KHz
16
-
-
dB
TRANSMITTER ELECTRICAL CHARACTERISTICS
T
A=-40 to 85°C, VDD=3.3V±5%, unless otherwise specified.
Parameter
Min
Typ
Max
Unit
Test Conditions
AMI Output Pulse Amplitude:
75W Application
2.13
2.37
2.60
V
Use transformer with 1:2 ratio
120W Application
2.70
3.00
3.30
and 9.1W resistor in series
with each end of primary.
Output Pulse Width
224
244
264
ns
Output Pulse Width Ratio
0.95
1.00
1.05
-
per ITU-G.703
Output Pulse Amplitude Ratio
0.95
1.00
1.05
-
per ITU-G.703
Output Return Loss:
51KHz —102KHz
10
-
-
dB
102KHz—2048KHz
16
-
-
dB
per ETSI 300 166 and CH PTT
2048KHz—3072KHz
12
-
-
dB
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
-65°C to + 150°C
Operating Temperature
-40°C to + 85°C
Supply Voltage
-0.5V to + 6.0V


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