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TIR1000PS Datasheet(PDF) 1 Page - Texas Instruments |
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TIR1000PS Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page TIR1000, TIR1000I STANDALONE IrDA ™ ENCODER AND DECODER SLLS228F – DECEMBER 1995 – REVISED JULY 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Adds Infrared (IR) Port to Universal Asynchronous Receiver Transmitter (UART) D Compatible With Infrared Data Association (IrDA ™) and Hewlett Packard Serial Infrared (HPSIR) D Provides 1200 bps to 115 kbps Data Rate D Operates From 2.7 V to 5.5 V D Provides Simple Interface With UART D Decodes Negative or Positive Pulses D 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 I/O DESCRIPTION NAME NO. I/O DESCRIPTION 16XCLK 1 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). GND 4 Ground IR_RXD 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. IR_TXD 7 O Infrared transmitter data. IR_TXD is an IrDA-SIR-modulated output to an optoelectronics transceiver. RESET 5 I Active high reset. RESET initializes an IrDA-SIR-decode/encode state machine (this terminal is tied to a UART reset line). U_RXD 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). U_TXD 2 I Transmitter data. U_TXD is encoded (modulated) data and output data as IR_TXD (this terminal is tied to SOUT from a UART). VCC 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 VCC 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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