Avago Technologies ACPL-224-500E - Manual (Page 26)

AV02-4387EN 23 Avago Technologies
Description
The above isolated RS-232 circuit
uses two high-speed 3.3V optocou-
plers that can switch up to 15 MBd
signals. An isolated power supply
is required to power the DS14C335
driver/receiver integrated circuit.
Performance of Circuit
• Typical signaling rate: up to
15 MBd
• Optocoupler LED drive current: 5
mA
• Typical Optocoupler Transient Re-
jection: 10,000 V/µs slew rate, 50 V
peak
Benefits
• Compact design with small out-
line optocouplers
• Prevents common­mode tran-
sients from interfering with the
signal
• Low power dissipation
Alternative Avago Parts
1) HCPL-263L/HCPL-063L Dual Low
Power Optocoupler
2) HCPL-250L or HCPL-270L for low
data rate applications
Isolated 3.3V RS-232 Interface
Data Communications Applications
R
1
HCPL-260L
DIGITAL
LOGIC
R 2
2 1
RS232
OUTPUT
R 3
HCPL-260L
R
4
2 1
RS232
INPUT
3.3V
3.3V
DS14C335