Avago Technologies ACPL-224-500E - Manual (Page 34)

AV02-4387EN 31 Avago Technologies
Description
The above circuit converts a single-
ended signal to a split-phase signal
with a 75159 Tri-State Line Driver
and dual- channel HCPL-4661 High
CMR Optocoupler. When Input
Enable goes low, the lower channel
of the optocoupler operates the
“strobe” input of the 75159 to make
both outputs open.
Performance of Circuit
• Optocoupler signaling rate: up to
10 MBd
• Optocoupler CMR: 15,000 V/µs at
1000 V peak (typical)
Benefits
• Higher data rate than a current
source pull-up
• High CMR performance reduces
or eliminates transient noise
Alternative Avago Parts
1) HCPL-063N SO-8 High CMR Dual
Channel Optocoupler
2) HCPL-2631 Dual Channel High
Speed Optocoupler
3) HCPL-0631 Small Outline, Dual
Channel Optocoupler
4) HCPL-56XX Hermetically Sealed
High Speed Optocouplers
5) HCPL-053L/063L/073L, HC-
PL-253L/263L/273L 3.3V Opto-
couplers
Isolated Tri-State Line Driver
Data Communications Applications
LINE
GND
HCPL-4661
DATA IN
LOCAL V
CC
ENABLE
(HIGH)
H
1
2
4
3
5
6
7
8
6
5
4
R
S
R
L
R
L 2
3
SIGNAL
LINE
LINE
V
CC
L
1/2 75159