參數資料
型號: LXT388LE
英文描述: PCM TRANSCEIVER|DUAL|CEPT PCM-30/E-1|CMOS|QFP|100PIN|PLASTIC
中文描述: 的PCM收發(fā)器|雙|優(yōu)稅PCM-30/E-1 |的CMOS | QFP封裝| 100引腳|塑料
文件頁數: 72/80頁
文件大?。?/td> 1112K
代理商: LXT388LE
LXT384
Octal T1/E1/J1 Transceiver
72
Datasheet
Table 53. G.703 2.048 Mbit/s Pulse Mask Specifications
Parameter
Cable
Unit
TWP
Coax
Test load impedance
120
75
Nominal peak mark voltage
3.0
2.37
V
Nominal peak space voltage
0 ±0.30
0
±0.237
V
Nominal pulse width
244
244
ns
Ratio of positive and negative pulse amplitudes at center of pulse
95-105
95-105
%
Ratio of positive and negative pulse amplitudes at nominal half amplitude
95-105
95-105
%
Figure 31. E1, G.703 Mask Templates
Table 54. T1.102 1.544 Mbit/s Pulse Mask Specifications
Parameter
Cable
Unit
TWP
Test load impedance
100
Nominal peak mark voltage
3.0
V
Nominal peak space voltage
0 ±0.15
V
Nominal pulse width
324
ns
Ratio of positive and negative pulse amplitudes
95-105
%
20%
0%
219 ns
244 ns
NOMINAL PULSE
488 ns
(244+244)
1
1
50%
194 ns
(244- 50)
269 ns
(244+25)
1
1
1
1
2
2
V = 100%
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