XRT82L24A Datasheet, PDF (21/39 Pages) Exar Corporation – QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

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XRT82L24A
QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.1.2
TABLE 3: 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:
75Ω Application
2.13
2.37
2.60
120Ω Application
2.70
3.0
3.30
Use transformer with 1:2 ratio and 9.1Ω
V
resistor in series with each end of primary.
V
Output Pulse Width
224
244
264
ns
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
-
Broad Band with jitter free TxClk
0.025
0.05
UIpp _{applied to the input.}
Return Loss:
51KHz --- 102KHz
102KHz --- 2048KHz
2048KHz --- 3072KHz
8
-
14
-
10
-
-
dB _{ETSI 300 166}
-
dB
-
dB
TABLE 4: TRANSMIT PULSE MASK SPECIFICATION
Test Load Impedance
75 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
244ns
Ratio of positive and negative pulses imbalance
0.95 to 1.05
0.95 to 1.05
19