PULSE GEN.
= 50 Ω
Z
f
O
t
= t = 5 ns
r
SINGLE CHANNEL
DUAL CHANNEL
V
+5 V
+5 V
I
F
I
F
PULSE GEN.
V
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
CC
CC
Z
= 50 Ω
O
R
L
t
= t = 5 ns
r
f
INPUT
MONITORING
NODE
OUTPUT V
O
MONITORING
NODE
0.1µF
BYPASS
R
L
0.1µF
BYPASS
OUTPUT V
MONITORING
NODE
INPUT
MONITORING
NODE
O
*C
L
R
C *
L
M
R
M
GND
GND
*C IS APPROXIMATELY 15 pF WHICH INCLUDES
L
PROBE AND STRAY WIRING CAPACITANCE.
I
= 7.50 mA
= 3.75 mA
F
INPUT
I
I
F
F
t
t
PHL
PLH
OUTPUT
V
O
1.5 V
Figure 8. Test circuit for tPHL and tPLH
100
105
90
V
F
= 5.0 V
CC
= 7.5 mA
V
A
= 5.0 V
CC
I
T = 25°C
80
t
, R = 4 KΩ
t
, R = 4 KΩ
L
PLH
L
PLH
t
, R = 350 Ω
PHL
L
1 KΩ
4 KΩ
60
40
75
60
t
, R = 350 Ω
L
PLH
t
, R = 1 KΩ
L
PLH
t
, R = 1 KΩ
L
PLH
t
, R = 350 Ω
L
PLH
20
0
45
30
t
, R = 350 Ω
PHL
L
1 KΩ
4 KΩ
-60 -40 -20
0
20 40
80 100
60
5
7
9
11
13
15
I
– PULSE INPUT CURRENT – mA
T
– TEMPERATURE – °C
F
A
Figure 9. Typical propagation delay vs. tem-
perature
Figure 10. Typical propagation delay vs. pulse
input current
40
V
I
= 5.0 V
t
t
CC
= 7.5 mA
RISE
FALL
R
= 4 kΩ
L
F
30
20
10
0
V
I
= 5.0 V
CC
= 7.5 mA
R
= 4 kΩ
= 1 kΩ
300
290
60
F
L
R
= 350Ω
L
R
L
40
R
R
= 350 Ω
L
20
0
R
= 1 kΩ
L
= 350 Ω, 1 kΩ, 4 kΩ
20 40 60 80 100
L
0
-10
-60
-40 -20
0
20 40
80 100
-60 -40 -20
60
- TEMPERATURE - oC
T
– TEMPERATURE – °C
A
T
A
Figure 11. Typical pulse width distortion vs.
temperature
Figure 12. Typical rise and fall time vs. tempera-
ture
16
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
