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參數(shù)資料
| 型號： | VP230 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | CAN |
| 英文描述： | 3.3-V CAN TRANSCEIVERS |
| 中文描述： | 3.3 V的CAN收發(fā)器 |
| 文件頁數(shù)： | 21/32頁 |
| 文件大?。?/td> | 403K |
| 代理商： | VP230 |
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www.ti.com
Slope Control
TMS320LF2406
or
TMS320LF2407
IOPF6
1
2
3
4
8
7
6
5
D
GND
V
CC
R
CANH
CANL
V
ref
10 k
to
100 k
R
S
Slope Control Resistance – k
0
5
10
15
20
25
0
0
10
20
30
15
50
60
70
68
90
DRIVER OUTPUT SIGNAL SLOPE
vs
SLOPE CONTROL RESISTANCE
D
s
μ
V
SN65HVD230
SN65HVD231
SN65HVD232
SLOS346H–MARCH 2001–REVISED JULY 2006
APPLICATION INFORMATION (continued)
Electromagnetic compatibility is essential in many applications using unshielded bus cable to reduce system
cost. To reduce the electromagnetic interference generated by fast rise times and resulting harmonics, the rise
and fall slopes of the SN65HVD230 and SN65HVD231 driver outputs can be adjusted by connecting a resistor
from R
S
(pin 8) to ground or to a logic low voltage, as shown in
Figure 36
. The slope of the driver output signal is
proportional to the pin's output current. This slope control is implemented with an external resistor value of 10
k
to achieve a
≈
15 V/
μ
s slew rate, and up to 100 k
to achieve a
≈
2.0 V/
μ
s slew rate as displayed in
Figure 37
. Typical driver output waveforms from a pulse input signal with and without slope control are displayed
in
Figure 38
. A pulse input is used rather than NRZ data to clearly display the actual slew rate.
Figure 36. Slope Control/Standby Connection to a DSP
Figure 37. HVD230 Driver Output Signal Slope vs Slope Control Resistance Value
21
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相關代理商/技術參數(shù) |
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|---|---|
| VP231 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3.3-V CAN TRANSCEIVERS |
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