Datasheet

MAX3130/MAX3131
3V to 5.5V, IrDA Infrared Transceiver with
Integrated RS-232 Interface
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MAX3130
EDGE
EDGE
Rx
RxIN
TxIN
Tx
ENDEC
CHARGE PUMP
SHDN
1µF
R
SET
GND
V
CC
1µF
AGND
AV
CC
EDGEDET
T2OUT
R2IN
R1IN
RSSD
V+
V-
LEDC
PGND
PINC
1.2V
C4
C3
T1OUT
RS-232
INPUTS
RS-232
OUTPUTS
OFF
ON
IR
232
OFF
ON
RECEIVE
LOGIC
OUTPUTS
TRANSMIT
LOGIC
INPUTS
C1+
C1
C1-
C2+
C2
C2-
IRSD
BIAS
5k
5k
BAUD16
IRMODE
R1OUT
R2OUT
T1IN
T2IN
f
BAUD16
Figure 1. MAX3130 Functional Diagram