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參數(shù)資料
| 型號(hào)： | TIR1000PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | STANDALONE IrDAE ENCODER AND DECODER |
| 中文描述： | 單機(jī)IrDAE編解碼器 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 119K |
| 代理商： | TIR1000PW |
TIR1000, TIR1000I
STANDALONE IrDA
ENCODER AND DECODER
SLLS228F – DECEMBER 1995 – REVISED JULY 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Adds Infrared (IR) Port to Universal
Asynchronous Receiver Transmitter
(UART)
Compatible With Infrared Data Association
(IrDA
) and Hewlett Packard Serial Infrared
(HPSIR)
Provides 1200 bps to 115 kbps Data Rate
Operates From 2.7 V to 5.5 V
Provides Simple Interface With UART
Decodes Negative or Positive Pulses
Available in Two 8-Terminal Plastic Small
Outline Packages (PSOP), PS Package Has
Slightly Larger Dimensions Than PW
Package
description
The TIR1000 serial infrared (SIR) encoder/
decoder is a CMOS device which encodes and
decodes bit data in conformance with the IrDA
specification.
A transceiver device is needed to interface to the photo-sensitive diode (PIN) and the light emitting diode (LED).
A UART is needed to interface to the serial data lines.
Terminal Functions
TERMINAL
DESCRIPTION
NAME
NO.
1
áááááá
á
ááááá
á
á
ááá
á
IR_RXD
á
á
áá
áá
I
Clock signal. 16XCLK should be set to 16 times the baud rate. The highest baud rate for IrDA is 115.2 kbps for which the
clock frequency equals 1.843 MHz (this terminal is tied to the BAUDOUT of a UART).
Ground
áááááá
áááááá
áááááá
á
áááá
U_RXD
áááááá
á
áááá
VCC
6
I
Infrared receiver data. IR_RXD is an IrDA-SIR-modulated input from an optoelectronics transceiver whose input pulses
should be 3/16 of the baud rate period.
Infrared transmitter data. IR_TXD is an IrDA-SIR-modulated output to an optoelectronics transceiver.
á
á
Active high reset. RESET initializes an IrDA-SIR-decode/encode state machine (this terminal is tied to a UART reset
line).
3
O
Receiver data. U_RXD is decoded (demodulated) data from IR_RXD according to the IrDA specification (this terminal is
tied to SIN of a UART).
á
á
á
I
Transmitter data. U_TXD is encoded (modulated) data and output data as IR_TXD (this terminal is tied to SOUT from a
UART).
8
Supply voltage
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
IrDA is a registered trademark of the Infrared Data Association.
functional block diagram
1
2
3
4
8
7
6
5
16XCLK
U_TXD
U_RXD
GND
V
CC
IR_TXD
IR_RXD
RESET
PS OR PW PACKAGE
(TOP VIEW)
Decoder
Encoder
RESET
IR_RXD
16XCLK
U_TXD
U_RXD
IR_TXD
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
1999, Texas Instruments Incorporated
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