OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

SP339EER1-L

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23
SP339E
13
REV. 1.0.4 RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
FIGURE 3. MODE 10 - RS-485 HALF DUPLEX
Slew
Dir1
Mode0 = 0
Mode1 = 1
Term
Enable = 1
Vcc
L1 = 1
L2
L3
L6 = 1
L8 = 1
L9 = 1
V
cc
R1
T1
R2
120̢
11 12 13 14 15 16 17 18 19 20
40 39 38 37 36 35 34 33 32 31
1
2
3
4
5
6
7
8
9
10
30
29
28
27
26
25
24
23
22
21
All pull-downs 330k̢
R1
V+
C2+
Vcc
C1+
C1-
C2-
V-
Vcc
C3
0.1µF
C2
0.1µF
C1
0.1µF
C4
0.1µF
Cc
1.0µF
SP339E
14
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION REV. 1.0.4
FIGURE 4. MODE 11 - RS-485/422 FULL DUPLEX
Slew
Dir1
Mode0 = 1
Mode1 = 1
Term
Enable = 1
Vcc
T1
R1
R2
R3
R4
11 12 13 14 15 16 17 18 19 20
40 39 38 37 36 35 34 33 32 31
1
2
3
4
5
6
7
8
9
10
30
29
28
27
26
25
24
23
22
21
120̢
All pull-downs 330k̢
R1
V+
C2+
Vcc
C1+
C1-
C2-
V-
Vcc
C3
0.1µF
C2
0.1µF
C1
0.1µF
C4
0.1µF
Cc
1.0µF
L1 = 1
L2
L3
L6 = 1
L8 = 1
L9 = 1
V
cc
SP339E
15
REV. 1.0.4 RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
TEST CIRCUITS
FIGURE 5. RS-485/422 RECEIVER TERMINATION RESISTANCE
Termination is enabled in RS-485/422 modes when the TERM pin is held high (V
CC
).
FIGURE 6. RS-485/422 DIFFERENTIAL DRIVER OUTPUT VOLTAGE
FIGURE 7. RS-485/422 DIFFERENTIAL DRIVER OUTPUT VOLTAGE OVER COMMON MODE
FIGURE 8. RS-485/422 DRIVER OUTPUT SHORT CIRCUIT CURRENT
TERM = V
CC
I
B
±2V
Rx
I
A
B
A
R
TERM
R
TERM
= 2 (V
A
ڏ V
B
)
I
A
ڏ I
B
-7V ݪV
A
, V
B
ݪ+12V
Tx
V
OD
V
CM
Tx Enable = V
CC
Tx Input = 0V or V
CC
B
A
R
L
2
R
L
2
Tx
V
OD
V
CM
60̢
375̢
375̢
B
A
Tx Enable = V
CC
Tx Input = 0V or V
CC
Tx
-7V to +12V
V
B
A
I
OSD
Tx Enable = 0V or V
CC
Tx Input = 0V or V
CC
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23

SP339EER1-L

Mfr. #:
Buy SP339EER1-L
Manufacturer:
MaxLinear
Description:
RS-422/RS-485 Interface IC Multiprotocol, Ext Temp, Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet