T7237 데이터 시트보기 (PDF) - Agere -> LSI Corporation
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T7237 Datasheet PDF : 116 Pages
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Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Questions and Answers (continued)
S/T-Interface (continued)
A36: (continued)
T7903
10 Ω
NPx_PT
NPx_NT
10 Ω
5Ω
D1
D2
6.8 V
ZD1
D3
D4
5Ω
T1
2.0:1
*
JMP1 JMP2
100 Ω 100 Ω
10 kΩ
T7256
RPR
T3
RNR
10 kΩ
T7256
TPR
143 Ω
TNR
143 Ω
10 kΩ
10 kΩ
T7903
NPx_PR
NPx_NR
10 Ω
D5
D6
6.8 V
ZD2
D7
D8
T2
2.0:1
0.1 µF
JMP3 JMP4
167 Ω 100 Ω
10 Ω
* Refer to the T7903 data sheet, Figure F-10 for an example of a switch circuit that can be used here.
Figure 39. T7903 to T7256 Direct-Connect Scheme with External S/T-Interface
RJ-45
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5-4728
Lucent Technologies Inc.
97
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