XRT5997 Datasheet, PDF (16/37 Pages) Exar Corporation – Seven-Channel E1 Line Interface Unit

XRT5997
RECEIVER ELECTRICAL CHARACTERISTICS
Unless otherwise specified: T_A=-40 to 85°C, V_DD=3.3V±5%, unless otherwise specified.
Parameter
Receiver Loss of Signal:
Threshold to Assert
Min
Typ
Max Unit Test Conditions
12
20
-
dB Cable attenuation @ 1024KHz
Threshold to Clear
Time Delay
Hysteresis
Receiver Sensitivity
Interference Margin
Input Impedance
Jitter Tolerance:
20Hz
700Hz
10KHz —100KHz
Return Loss:
51KHz —102KHz
102KHz—2048KHz
2048KHz—3072KHz
11
15
dB
10
-
255
bit Per ITU-G.775
-
5
-
dB
11
13
-
dB Below nominal pulse amplitude of 3.0V
for 120Ω and 2.37V for 75Ω applications.
With -18dB interference signal added.
-18
-14
-
dB With 6dB cable loss.
5
-
-
KΩ
10
5
-
0.3
-
UIpp
14
-
-
dB
20
-
-
dB Per ITU-G.703
16
-
-
dB
TRANSMITTER ELECTRICAL CHARACTERISTICS
Unless otherwise specified: T_A=-40 to 85°C, V_DD=3.3V±5%, unless otherwise specified.
Parameter
AMI Output Pulse Amplitude:
75Ω Application
120Ω Application
Output Pulse Width
Output Pulse Width Ratio
Output Pulse Amplitude Ratio
Output Return Loss:
51KHz —102KHz
102KHz—2048KHz
2048KHz—3072KHz
Min
Typ
Max Unit Test Conditions
2.13 2.37 2.60
2.70
3.0 3.30
224 244 264
0.95
−
1.05
0.95
−
1.05
10
-
-
16
-
-
12
-
-
V Use transformer with 1:2 ratio and 9.1Ω
V resistor in series with each end of primary.
ns
− Per ITU-G.703
− Per ITU-G.703
dB Per ETSI 300 166 and CH PTT
dB
dB
Rev. 1.0.0
16