UCC5341 Datasheet, PDF (1/5 Pages) Texas Instruments – IrDA 115.2kbps Receiver

UCC5341
PRELIMINARY
IrDA 115.2kbps Receiver
FEATURES
• Supports IrDA standard to 115.2kbps
Data Rates
• 3V to 5V Operation
• Wide Dynamic Receiver Range from
200nA to 50mA Typical
• IrDA Compliant I/O
• Very Low Quiescent Current In Active
Mode (250µA Typical)
• Ultra Low Quiescent Current In Sleep
Mode (0.5µA Typical)
• Compatible with IrDA Detector Diodes
DESCRIPTION
The UCC5341 IrDA (Infrared Data Association) Receiver supports the
analog section of the IrDA standard. It has a limiting transresistance
amplifier to detect a current signal from a PIN diode and drives RXX
pulses to a UART. The amplifier is capable of input currents ranging
from 200nA to greater than 50mA. The UCC5341 is bandpass limited to
reduce interference from other IR sources. The UCC5341 also has very
low current consumption in the active mode (250µA typically), making it
excellent for power sensitive applications.
The output of the receiver is designed to drive CMOS and TTL levels,
for direct interfacing to IrDA compliant UARTs and Super I/O devices.
Internal resistors are provided for decoupling the detector diode supply,
thus minimizing the number of external components required.
BLOCK DIAGRAM
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