Datasheet

LTC2854/LTC2855
6
285455fb
Figure 6. Receiver Propagation Delay Measurements
Figure 7. Receiver Enable and Disable Timing Measurements
A
B
V
CM
±V
AB
/2
±V
AB
/2
RO
C
L
285455 F06a
RECEIVER
t
PLHR
t
PHLR
90%
0
t
SKEWR
= t
PLHR
– t
PHLR
90%
1/2 V
CC
1/2 V
CC
t
RR
t
FR
t
R
t
F
10%
90%
10%
90%
10%
285455 F06b
10%
V
AB
V
CC
V
O
0
–V
AB
RO
A-B
A
B
0V OR V
CC
V
CC
OR 0V
DI = 0V OR V
CC
RO
RE
C
L
R
L
V
CC
OR
GND
285455 F07a
RECEIVER
t
ZLR
,
t
ZLSR
t
ZHR
,
t
ZHSR
t
HZR
t
LZR
1/2 V
CC
1/2 V
CC
1/2 V
CC
RE
RO
RO
V
CC
V
CC
V
OL
V
O
V
OH
0V
0V
0.5V
0.5V
285455 F07b
t
RTEN
t
RTZ
V
CC
B
A
I
A
TE
285455 F08
RECEIVER
90%
10%
0V
TE
+
–
+
–
V
AB
V
B
R
TERM
=
I
A
I
A
V
AB
1/2 V
CC
RO
Figure 8. Termination Resistance and Timing Measurements
TEST CIRCUITS