TFDU4301-TT3

The TFDU4301 is a low profile (2.5 mm) infrared transceiver module. It is compliant to the latest IrDA® physical layer standard for fast infrared data communication, supporting IrDA 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 a low-power control IC to provide a total front-end solution in a single package.

This device covers an extended IrDA low power range of close to 1 m. With an external current control resistor the current can be adjusted for shorter ranges.

The RXD output pulse width is independent of the optical input pulse width and stays always at a fixed pulse width thus making the device optimum for standard endecs. TFDU4301 has a tri-state output and is floating in shut-down mode with a weak pull-up.

• 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 °C
• 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 (< typ. supply current 70 µA)
• Power shutdown mode (< 1 µA shutdown current in full temperature range, up to 85 °C)
• Low profile (2.5 mm) (L x W x H in mm): 8.5 × 2.5 × 3.1
• Surface mount package
• High efficiency emitter
• Low profile (universal) package capable of surface mount soldering to side and top view orientation
• Directly interfaces with various super I/O and controller devices as e.g. TOIM4232 o