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參數(shù)資料
| 型號： | SN55110AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL LINE DRIVERS |
| 中文描述： | 雙線路驅動器 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大小： | 148K |
| 代理商： | SN55110AFK |
SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106E – DECEMBER 1975 – REVISED APRIL 2000
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
using the SN75112 as a CCITT-recommended V.35 line driver
The SN75112 dual line driver, the SN75107A dual line receiver, and some external resistors can be used to
implement the data interchange circuit of CCITT recommendation V.35 (1976) modem specification. The circuit
of one channel is shown in Figure 1 and meets the requirement of the interface as specified by Appendix 11
of CCITT V.35 and summarized in Table 1 (V.35 has been replaced by ITU V.11).
Table 1. CCITT V.35 Electrical Requirements
GENERATOR
MIN
MAX
UNIT
mV
Source impedance, Zsource
Resistance to ground, R
50
150
135
165
Differential output voltage, VOD
10% to 90% rise time, tr
440
660
40
ns
or
0.01
×
ui
Common-mode output voltage, VOC
–0.6
0.6
V
LOAD (RECEIVER)
MIN
MAX
UNIT
Input impedance, ZI
Resistance to ground, R
ui = unit interval or minimum signal-element pulse duration
90
110
135
165
Data Out
1Y
Data In
1B
Enable
1C
1A
R3
390
R1
1.3 k
R5
75
R4
390
R2
1.3 k
R6
50
R7
50
R8
100 pF
All resistors are 5%, 1/4 W.
5 V
5 V
5 V
5 V
13
12
1/2 SN75112
1
2
10
3
100 pF
1Y
1Z
1
2
125
1A
1B
1/2 SN75107A
Enable
1G
4
5
6
Strobe
Figure 5. CCITT-Recommended V.35 Interface Using the SN75112 and SN75107A
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