Datasheet

MAX3130/MAX3131
3V to 5.5V, IrDA Infrared Transceiver with
Integrated RS-232 Interface
6 _______________________________________________________________________________________
2V/div
2V/div
RXD OUTPUT
vs. INFRARED INPUT
MAX3130 toc15
2µs/div
RXD
OUTPUT
INFRARED
INPUT
V
CC
= 3.3V, 115.2kbps AT 1m DISTANCE
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
2V/div
2V/div
RXD OUTPUT
vs. INFRARED INPUT
MAX3130 toc16
100µs/div
RXD
OUTPUT
INFRARED
INPUT
V
CC
= 3.3V, 2400bps AT 1m DISTANCE
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
Pin Description
Typical Operating Characteristics (continued)
(V
CC
= AV
CC
= 3.3V, GND = AGND = PGND, C1–C4 = 0.1µF, R
L
= 3kΩ, T
A
= +25°C, unless otherwise noted.)
2V/div
2V/div
RXD OUTPUT
vs. INFRARED INPUT
MAX3130 toc13
2µs/div
RXD
OUTPUT
INFRARED
INPUT
V
CC
= 3.3V, 115.2kbps AT 10cm DISTANCE
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
2V/div
2V/div
RXD OUTPUT
vs. INFRARED INPUT
MAX3130 toc14
100µs/div
RXD
OUTPUT
INFRARED
INPUT
V
CC
= 3.3V, 2400bps AT 10cm DISTANCE
TEMIC BPV22NF
TRANSMIT POWER 200mW/sr
MAX3131MAX3130
PIN
1 IR Receiver TTL/CMOS Data OutputRXD—
—
Edge Detector Output. EDGEDET goes low if activity is sensed on either the RS-232
receiver or the IrDA receiver, depending on the state of IRMODE. See
EDGEDET : Edge-
Detection Circuitry
section.
EDGEDET
1
2 TTL/CMOS RS-232 Transmitter InputT1IN2
FUNCTIONNAME