adm3485 Analog Devices, Inc., adm3485 Datasheet - Page 10
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adm3485
Manufacturer Part Number
adm3485
Description
3.3 V Slew Rate Limited, Half- And Full-duplex, Rs-485/rs-422 Transceivers
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADM3485.pdf
(20 pages)
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
1
2
GENERATOR
PPR = 250kHz, 50% DUTY CYCLE,
C
1
2
L
PPR = 250kHz, 50% DUTY CYCLE,
C
Figure 13. Driver Enable and Disable Times (t
GENERATOR
L
INCLUDES PROBE AND STRAY CAPACITANCE.
INCLUDES PROBE AND STRAY CAPACITANCE.
0V OR 3V
Figure 14. Receiver Propagation Delays
1.5V
1
0
1
50Ω
50Ω
D
V
ID
t
S1
C
R
t
L
R
≤ 6.0ns, Z
= 50pF
≤ 6.0ns, Z
R
2
O
V
OUT
O
= 50Ω.
OM
= 50Ω.
PZL
V
=
CC
C
, t
L
V
R
PSL
2
CC
= 15pF
L
= 110Ω
, t
OUT
PLZ
)
2
Rev. B | Page 10 of 20
+1.5V
1
2
–1.5V
PPR = 250kHz, 50% DUTY CYCLE,
C
L
INCLUDES PROBE AND STRAY CAPACITANCE.
GENERATOR
S3
Figure 15. Receiver Enable and Disable Times
1
V
ID
50Ω
R
t
R
≤ 6.0ns, Z
C
L
2
O
1kΩ
= 50Ω.
S1
S2
V
CC