ISL3179E 查看數據表（PDF） - Intersil
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ISL3179E Datasheet PDF : 17 Pages
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ISL3179E, ISL3180E
Test Circuits and Waveforms (Continued)
+1.5V
RE
B
A
RO
R
15pF
+3V
A
1.5V
1.5V
0V
SIGNAL
GENERATOR
tPLH
tPHL
VCC
RO
1.7V
1.7V
0V
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RECEIVER PROPAGATION DELAY
SIGNAL
GENERATOR
RE
GND
B
RO
AR
1kΩ
15pF
VCC
SW GND
PARAMETER
DE
A
tHZ
0
tLZ
0
tZH (Note 7)
0
tZL (Note 7)
0
tZH(SHDN) (Note 10)
0
tZL(SHDN) (Note 10)
0
+1.5V
-1.5V
+1.5V
-1.5V
+1.5V
-1.5V
FIGURE 6A. TEST CIRCUIT
SW
GND
VCC
GND
VCC
GND
VCC
(NOTE 8)
RE
1.5V
3V
1.5V
0V
tZH, tZH(SHDN)
(NOTE 8)
RO
tHZ
OUTPUT HIGH
1.5V
VOH - 0.5V VOH
0V
tZL, tZL(SHDN)
(NOTE 8)
RO
tLZ
1.5V
OUTPUT LOW
VCC
VOL + 0.5V VOL
FIGURE 6B. MEASUREMENT POINTS
FIGURE 6. RECEIVER ENABLE AND DISABLE TIMES
8
FN6365.2
April 22, 2008
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