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TFDU4300
Infrared Transceiver Module (SIR, 115.2 kbit/s)\r\nfor IrDA庐 applications
TFDU4300Document Number 82614
www.vishay.com
Infrared Transceiver Module (SIR, 115.2 kbit/s)
for IrDA® applications
DescriptionThe TFDU4300 is a low profile (2.5 mm)
transceiver module with independent logic reference
voltage (V logic ) for low voltage IO interfacing.
compliant to the latest IrDA physical layer standard for
fast infrared data communication, supporting
speeds up to 115.2 kbit/s (SIR) and carrier based
remote control. The transceiver module consists of a
PIN photodiode, an infrared emitter (IRED), and
low-power control IC to provide a total front-end solu-
tion in a single package. This device covers
extended IrDA low power range of close to 1 m. With
an external current control resistor the current can be
adjusted for shorter ranges.
This Vishay SIR transceiver is built in a new smaller
package using the experiences of the lead frame
BabyFace technology.
The Rxd output pulse width is independent of the opti-
cal input pulse width and stays always at a fixed pulse
width thus making the device optimum for standard
Endecs. TFDU4300 has a tri-state output and is float-
ing in shut-down mode with a weak pull-up.
Features Compliant to the latest IrDA physical layer
specification (9.6 kbit/s to 115.2 kbit/s) and TV
Remote Control, bi-directional operation included. Operates from 2.4 V to 5.5 V within specification
over full temperature range from - 30 °C to + 85 Logic voltage 1.5 V to 5.5 V is independent of
IRED driver and analog supply voltage Split power supply, transmitter and receiver can be
operated from two power supplies with relaxed
requirements saving costs, US Patent No.
6,157,476 Extended IrDA Low Power Range to about 70 cm Typical Remote Control Range 12 m Low Power Consumption
(< 0.12 mA Supply Current) Power Shutdown Mode (< 5 µA Shutdown Current
in Full Temperature Range, up to 85 °C) Surface Mount Package, low profile (2.5 mm)
- (L 8.5 mm × H 2.5 mm × W 2.9 mm) High Efficiency Emitter
