TFBS4711-TT1 Description
A compact infrared data transceiver module is the TFBS4711-TT1. IrDA® data rates of up to 115.2 kbit/s are supported (SIR). The transceiver module offers a complete front-end solution in a single package by combining a PIN photodiode, an infrared emitter (IRED), and a low-power CMOS control IC.
The system is built for the low power IrDA standard and has an increased on-axis range of up to 1 m. The RXD output pulse width is independent of the optical input pulse width and remains constant at a set pulse width, making the device ideal for conventional endecs. The tri-state output of the floating, shut-down TFBS4711-TT1 exhibits a weak pull-up. Current consumption is typically reduced to 10 nA using the shut down (SD) feature.
TFBS4711-TT1 Features
Tri-state receiver output, floating in shutdown with a weak pull-up
Constant RXD output pulse width (2.2 μs typical)
Meets IrFM fast connection requirements
Split power supply, an independent, unregulated supply for IRED anode and a well regulated supply for VCC
Directly interfaces with various super I/O and encoder / decoder devices
Qualified for lead (Pb)-free and Sn/Pb processing (MSL4)
Compliant with the latest IrDA physical layer low power specification (9.6 kbit/s to 115.2 kbit/s)
Small package (H x L x W in mm): 1.9 x 6 x 3
Typical link distance on-axis up to 1 m
Battery and power management features:
> Idle current -70 μA typical
> Shutdown current -10 nA typical
> Operates from 2.4 V to 5.5 V within specification over full temperature range from -30 °C to +85 °C
TFBS4711-TT1 Applications
Data loggers
External infrared adapters (dongles)
Diagnostics systems
Medical and industrial data collection devices
Kiosks, POS, point and pay devices
GPS
Access control
Field programming devices
Ideal for battery operated devices
PDAs
Mobile phones
Electronic wallet (IrFM)
Notebook computers
Digital still and video cameras
Printers, fax machines, photocopiers, screen projectors
