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XR-T5793IJ

Quad E1 Line Interface Unit

Exar Corporation 

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

RLOAD

75Ω

120Ω

100Ω

Table 2. Input Transformer Requirements

Turns Ratio

1:1

1:1.265

1:1.265

Line Impedance

75Ω

120Ω

100Ω

ROUT

68Ω

68Ω

62Ω

Table 3. Output Transformer Requirements

Magnetic Supplier Information:

Pulse

Telecom Product Group

P.O. Box 12235

San Diego, CA 92112

Tel. (619) 674-8100

Fax. (619) 674-8262

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

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