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ComLink™ Series
CY2LL843
Document #: 38-07066 Rev. OBS
Page 10 of 13
Application Engineering
Typical Characteristics (@VDD = 3.3V/TA = 25°C)
Note:
12. See Figure 19.
Pulse
Generator
CL = 10pF
2 locations
RL=100 ohm
Z
O=50
Z
O=50
Figure 15. Termination Scheme for 100-Ohm External
Termination
Z
O =5 0
Z
O =5 0
10 0
ohm
CL
CL
R e c e iv e r c h ip
with
100 O h m o n c h ip
te rm inatio n
Figure 16. Termination Scheme for 100-Ohm
Self-termination Interface Chip
CY2LL843
-20
-15
-10
-5
0
5
01
23
4
Voltage
Voh - Ioh
Figure 17. VOH vs. IOH
CY2LL843
-2
0
2
4
6
8
01
23
4
Voltage
Vol - Iol
Figure 18. Low-level Output vs. Current
Table 8. Technical Notes on STD Drive (LL842, A and D)
vs. High Drive (LL843, B and C)[[12]]
A
BCD
Unit
VOX
1.2
1.2
1.2
1.2
V
DC Offset
1.0
1.0
1.0
1.0
V
VOD Min.
0.25
0.5
0.25
0.125
V
VOD Max
0.45
0.9
0.45
0.225
V
T/Rise
1.4
1.4
0.6
0.6
ns
T/Fall
1.4
1.4
0.6
0.6
ns
A
B
C
D
+/-
i
+/-
i
+/-
2i
+/-
2i
50
ohm
100
ohm
50
ohm
25 ohm
25 ohm
100
ohm
Standard Drive
Current drive of 1i
Hi Drive
Current drive of 2i
Figure 19. Comparison Standard Drive ‘842
vs. High Drive ‘843
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