XR-T5793 Datasheet, PDF (10/16 Pages) Exar Corporation – Quad E1 Line Interface Unit

XR-T5793
Transmit Interface
51kHz to 102kHz
102kHz to 2.048MHz
2.048MHz to 3.072MHz
75Ω
Min.
Typ.
18
22
18
22
18
22
100Ω
Min.
Typ.
18
22
18
22
18
22
120Ω
Min.
Typ.
18
22
18
22
18
22
Units
dB
dB
dB
Receive Interface
51kHz to 102kHz
102kHz to 2.048MHz
2.048MHz to 3.072MHz
75Ω
Min.
Typ.
20
30
20
30
20
30
100Ω
Min.
Typ.
20
30
20
30
20
30
120Ω
Min.
Typ.
20
30
20
30
20
30
Units
dB
dB
dB
Note
The return loss has been measured on the evaluation board coupled via a capacitor and terminated with 75Ω impedance.
Table 1. Return Loss Requirements (Resistor Tolerance: 1% on Transmit Side, 2% on Receive Side)
Turns Ratio
1:1
1:1
1:1
Line Impedance
75Ω
120Ω
100Ω
R_LOAD
75Ω
120Ω
100Ω
Table 2. Input Transformer Requirements
Turns Ratio
1:1
1:1.265
1:1.265
Line Impedance
75Ω
120Ω
100Ω
R_OUT
68Ω
68Ω
62Ω
Table 3. Output Transformer Requirements
Magnetic Supplier Information:
Pulse
Telecom Product Group
P.O. Box 12235
San Diego, CA 92112
Tel. [phone]
Fax. [phone]
Transpower Technologies, Inc.
24 Highway 28, Suite 202
Crystal Bay, NV 89402–0187
Tel. (702) 831–0140
Fax. (702) 831–3521
Rev. 2.00
10