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LTC2864 数据表(PDF) 13 Page - Linear Technology

部件名 LTC2864
功能描述  짹60V Rugged PROFIBUS RS485 Transceivers
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC2864 数据表(HTML) 13 Page - Linear Technology

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LTC2876/LTC2877
13
28767fa
For more information www.linear.com/LTC2876
28767 F06
DE
PA OR PB
0V
0V
VCC*
½VCC*
½VCC
½VCC
VCC
VOL
VOH
PB OR PA
tZLD,
tZLSD
tZHD,
tZHSD
tLZD
0.5V
0.5V
tHZD,
tSHDND
*FOR THE LTC2877, SUBSTITUTE VL FOR VCC
VCC
DI
RE
RO
DE
PA
PB
LOW OR
HIGH
LOW OR
HIGH
LTC2876/LTC2877
500
50pF
VCC WHEN
DI LOW
GND WHEN
DI HIGH
GND WHEN
DI LOW
VCC WHEN
DI HIGH
500
50pF
Figure 6. Driver Enable, Disable and Shutdown Timing Measurements
TesT circuiTs
28767 F07
LOW
LOW
LOW
PB–PA
RO
1.5V
–1.5V
VCC*
0
90%
90%
10%
10%
0V
tPLHR
∆tPR = |tPLHR – tPHLR|
tPHLR
tRR
*FOR THE LTC2877, SUBSTITUTE VL FOR VCC
tFR
½VCC*
½VCC*
VCC
DI
RE
RO
DE
LTC2876/LTC2877
15pF
PA
PB
±(PB–PA)/2
±(PB–PA)/2
VCM
Figure 7. Receiver Propagation Delay Measurements



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