XRT82L24 datasheet(21/43 Pages) EXAR

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XRT82L24

QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

REV. 1.2.3

TABLE 2: E1 TRANSMITTER ELECTRICAL CHARACTERISTICS

(Ta=-40°C to 85°C, Vdd=3.3V±5%, unless otherwise specified)

PARAMETER

MIN

TYP.MAX

UNIT

TEST CONDITIONS

AMI Output Pulse Amplitude:

Ω Application

120

Ω Application

2.13

2.70

2.37

3.0

2.60

3.30

Use transformer with 1:2 ratio and 9.1

Ω

resistor in series with each end of primary.

Output Pulse Width

224

244

264

Output Pulse Width Ratio

0.95

1.05

ITU-G.703

Output Pulse Amplitude Ratio

0.95

1.05

ITU-G.703

Jitter Added by the Transmit-

ter Output

0.025

0.05

UIpp

Broad Band with jitter free TxClk

applied to the input.

Return Loss:

51KHz --- 102KHz

102KHz --- 2048KHz

2048KHz --- 3072KHz

ETSI 300 166, CHPTT

TABLE 3: TRANSMIT PULSE MASK SPECIFICATION

Test Load Impedance

Ω resistive (Coax)

120

Ω resistive (Twisted Pair)

Nominal peak voltage of a mark

2.37V

3.0V

Peak voltage of a space (no mark)

0 ± 0.237V

0± 0.3V

Nominal pulse width

244ns

Ratio of positive and negative pulses imbalance

0.95 to 1.05

XRT82L24 Datasheet(PDF) 21 Page - Exar Corporation

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