参数资料
型号: WJLXT385LEB1
厂商: INTEL CORP
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP144
封装: ROHS COMPLIANT, LQFP-144
文件页数: 9/138页
文件大小: 1545K
代理商: WJLXT385LEB1
106
Document Number: 249252
Revision Number: 006
Revision Date: 19-Jan-2006
Intel LXT385 Octal E1 S/H PCM Transceiver with JA
Table 58 lists the AC characteristics for the LXT385 ransceiver transmitter.
Table 58. Intel
LXT385 Transceiver AC Transmitter Characteristics
Parameter
Min.
Typ.
Max.
Unit
Test Condition
Pulse-Sequence Differences and Pulse-Width Ratio
Difference between pulse sequences
200
mV
Observed for more
than 16
consecutive pulses
Pulse-width ratio of positive to negative pulses
(and negative to positive pulses)
0.95
1.05
At nominal half
amplitude
Transmit Pulse Amplitude
75
Ω coaxial cable
2.14
2.37
2.60
V
Tested at line side
120
Ω twisted-pair cable
2.7
3.0
3.3
V
Tested at line side
Transmit Peak Voltage of a Space on a Cable
75
Ω coaxial cable
-0.24
0.24
V
120
Ω twisted-pair cable
-0.3
0.3
V
Transmit Amplitude Variations, Intrinsic Jitter, and Short-Circuit Current
Transmit amplitude variations due to supply
voltage variations
-1
+1
%
Transmit intrinsic jitter - 20 Hz to 100 kHz
0.03
0.05
U.I.
Tx path TCLK is
jitter free
Transmit line short-circuit current for 2 x 11
Ω
series resistors and 1:2 transformer
50
mA RMS
Transmit Path Delay
Bipolar mode
2
U.I.
Jitter attenuator
disabled
Unipolar mode
7
U.I.
Transmit Return Loss Using Components on Intel LXD385 Transceiver Evaluation Board1
Transmit Return Loss - 75
Ω Coaxial Cable
51 to 102 kHz
15
17
dB
102 kHz to 2.048 MHz
15
17
dB
2.048 to 3.072 MHz
15
17
dB
Transmit Return Loss - 120
Ω Twisted-Pair Cable
51 to 102 kHz
15
20
dB
102 kHz to 2.048 MHz
15
20
dB
2.048 to 3.072 MHz
15
20
dB
1. Guaranteed by design and other correlation methods.
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