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IL4822 Datasheet(PDF) 5 Page - NVE Corporation

Part # IL4822
Description  High-Speed Isolated RS-422 / RS-485 Transceivers
PDF  29 Pages
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Manufacturer  NVE [NVE Corporation]
Direct Link  https://www.nve.com/
Logo NVE - NVE Corporation

IL4822 Datasheet(HTML) 5 Page - NVE Corporation

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IL4822 / IL4622 / IL4685
5
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344
(952) 829-9217
www.nve.com
YouTube.com/NveCorporation
iso-apps@ www.nve.com
IL4x22 Pin Connections
1
VDD1B
Transceiver controller-side power supply input (3.3 V nominal).
2
GND1
Input power supply ground (pin 2 is internally connected to pin 8).
3
R
Output data from bus.
4
RE
Read data enable. If RE is high, R = high impedance; has a 500 kΩ
nominal internal pulldown.
5
DE
Drive enable (has a 1 MΩ nominal internal pulldown).
6
D
Data input to bus.
7
VDD1A
DC-to-DC convertor input voltage (3.3 V nominal); bypass with 0.1 µF.
8
GND1
Input power supply ground (pin 8 is internally connected to pin 2).
9
GND2
Output power supply ground (pin 9 is internally connected to pin 15).
10
VF
Output-side rectifier output / regulator input; connect to a 0.1 µF/16 V
external filter capacitor.
11
Y
Non-inverting bus driver.
12
A
Non-inverting bus receiver.
13
Z
Inverting bus driver.
14
B
Inverting bus receiver.
15
GND2
Output power supply ground (pin 15 is internally connected to pin 9).
16
VDD2
DC-to-DC convertor output (5 V typical for IL4822; 3.3 V for IL4622);
internally powers transceiver functions. Bypass with 10 µF ceramic.
IL4685 Pin Connections
1
VDD1B
Transceiver controller-side power supply input (3.3 V nominal).
2
GND1
Input power supply ground (pin 2 is internally connected to pin 8).
3
R
Output data from bus.
4
RE
Read data enable (if RE is high, R = high impedance).
5
DE
Drive enable (has a 1 MΩ nominal internal pulldown).
6
D
Data input to bus.
7
VDD1A
DC-to-DC convertor input voltage (3.3 V nominal); bypass with 0.1 µF.
8
GND1
Input power supply ground (pin 8 is internally connected to pin 2).
9
GND2
Output power supply ground (pin 9 is internally connected to pin 15).
10
VF
Output-side rectifier output / regulator input; connect to a 0.1 µF/16 V
external filter capacitor.
11
VDD2A
DC-to-DC convertor output (3.3 V typical); bypass with 10 µF ceramic.
12
A
Non-inverting bus line.
13
B
Inverting bus line.
14
NC
No internal connection.
15
GND2
Output power supply ground (pin 15 is internally connected to pin 9).
16
VDD2B
Transceiver power supply input
(connect to pin 11 to use DC-to-DC convertor).

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'
RE
V
DD2
R
D
B
Z
DE
A
VF
V
DD1B
GND
1
GND
2
GND
2
Y
V
DD1A
GND
1

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#
$
%
&
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#
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!



'
RE
V
DD2B
R
D
NC
B
DE
A
VF
V
DD1B
GND
1
GND
2
GND
2
V
DD2A
V
DD1A
GND
1



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