Test Circuits
Pulse
Generator
tr = 5ns
ZO= 50Ω
+5V
IF = 7.5 mA
IF = 3.75 mA
Input
(IF)
VCC
1
2
3
4
8
7
6
5
tPHL
tPLH
Output
(VO)
.1 µf
bypass
RL
1.5 V
Output
(VO)
Input
Monitor
(IF)
90%
10%
Output
(VO)
CL
GND
47
tf
tr
Fig. 12 Test Circuit and Waveforms for tPLH, tPHL, tr and tf
Pulse
Input
Monitor
(VE)
Generator
tr = 5ns
ZO= 50Ω
+5V
3.0 V
1.5 V
Input
(VE )
VCC
1
2
3
4
8
tEHL
tELH
7.5 mA
Output
(VO)
RL
7
.1 µf
bypass
1.5 V
Output
(VO)
6
CL
5
GND
Fig. 13 Test Circuit tEHL and tELH
©2005 Fairchild Semiconductor Corporation
6N137, HCPL2601, HCPL2611, HCPL2630, HCPL2631 Rev. 1.0.7
www.fairchildsemi.com
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