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ISL4485E Datasheet(PDF) 5 Page - Intersil Corporation

Part No. ISL4485E
Description  ±15kV ESD Protected, 20Mbps, 5V, Low Power, RS-485/RS-422 Transceiver
Download  11 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL4485E Datasheet(HTML) 5 Page - Intersil Corporation

 
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5
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
Test Circuits and Waveforms (Continued)
D
DE
DI
VCC
SIGNAL
GENERATOR
CL = 100pF
RDIFF
Z
Y
CL = 100pF
OUT (Y)
3V
0V
tPLH
1.5V
1.5V
VOH
VOL
50%
50%
tPHL
OUT (Z)
tPHL
VOH
VOL
50%
50%
tPLH
DIFF OUT (Y - Z)
tR
+VOD
-VOD
90%
90%
tF
10%
10%
DI
SKEW = |CROSSING PT. OF Y
↑ & Z↓ - CROSSING PT. OF Y↓ & Z↑|
D
DE
DI
CL
500
Z
Y
VCC
GND
SW
PARAMETER OUTPUT
RE
DI
SW
CL (pF)
tHZ
Y/Z
X
1/0
GND
15
tLZ
Y/Z
X
0/1
VCC
15
tZH
Y/Z
X
1/0
GND
100
tZL
Y/Z
X
0/1
VCC
100
SIGNAL
GENERATOR
OUT (Y, Z)
3V
0V
1.5V
1.5V
VOH
0V
2.3V
VOH - 0.5V
tHZ
OUT (Y, Z)
VCC
VOL
2.3V
VOL + 0.5V
tLZ
DE
OUTPUT HIGH
OUTPUT LOW
tZL
tZH
ISL4485E


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