UCC5343

更新时间： 2024-11-27 03:57:19

品牌	Logo	应用领域
德州仪器 - TI		解码器编码器
页数	文件大小	规格书
6页	184K
描述
IrDA Transceiver with Encoder/Decoder

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UCC5343 数据手册

UCC5343

PRELIMINARY

IrDA Transceiver with Encoder/Decoder

FEATURES

DESCRIPTION

•

Micropower in the Sleep Mode, (2µA)

The UCC5343 IrDA Transceiver with Encoder/Decoder supports the

Physical Layer specifications of the IrDA standard. Additional functional-

ity is provided by data format translation between standard UART and

IrDA formats. The UCC5343 is readily interfaced to a standard UART.

3V to 5V Operation

Wide Dynamic Receiver Range from

200nA to 50mA Typical

The Receiver has a limiting transresistance amplifier to detect a current

signal from a PIN diode and drives RXX pulses into a UART. The re-

ceiver is capable of detecting input currents ranging from 200nA to

greater than 50mA. The receiver signal path is frequency limited by an

internal bandpass filter to reduce interference from other sources of IR

energy.

•

Direct Interface to IrDA Compatible

UARTs or Super I/O ICs

Supports IrDA Standard to 115.2kbps

Data Rates

Transmitter Output Stage Capable to

500mA Sink Current

The output of the receiver is designed for direct interface to standard

UARTs and Super I/O devices up to 115.2kbps. Internal resistors are

provided for decoupling the pin diode supply, minimizing the number of

required external components.

IrDA Compliant Modulation &

Demodulation Scheme

The UCC5343 has low current consumption in the active mode, making

it excellent for applications with low power requirements. The transmit-

ter section has a low impedance open drain MOSFET output. It is capa-

ble of sinking 300mA from an output LED at 3V and 500mA at LED at

5V.

•

Direct Interface to Standard UART

16 Pin SSOP, SOIC and DIL Package

BLOCK DIAGRAM

UDG-97076

1/98

12 3 4 5 6

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