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PDA 02 5/27/03 8:20 AM Page 17
Chapter 2 / Robotic System Overview
Figure 2.3
MCP 2150 chipset.

Vishay TFDS4500 Serial Infrared Transceiver
The TFDU4100, TFDS4500 (Figure 2.4), and TFDT4500 are a family of
low-power infrared (IR) transceiver modules compliant to the IrDA
standard for serial infrared (SIR) data communication, supporting
IrDA speeds up to 115.2 kb/s. Integrated within the transceiver mod-
ules is a photo PIN diode, infrared emitter (IRED), and a low-power
analog control integrated circuit (IC) to provide a total front-end solu-
tion in a single package. Telefunken’s SIR transceivers are available in
three package options, including our BabyFace package (TFDU4100),
once the smallest SIR transceiver available on the market. This wide
selection provides flexibility for a variety of applications and space
constraints. The transceivers are capable of directly interfacing with a
wide variety of I/O chips, which perform the pulse-width modula-
tion/demodulation function, including Telefunken’s TOIM4232 and
TOIM3232. At a minimum, a current-limiting resistor in series with
the IRED and a VCC bypass capacitor are the only external compo-
nents required to implement a complete solution.

Figure 2.4
The vishay
TFDS4500.

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