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參數(shù)資料
| 型號(hào)： | TIR1000I |
| 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 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 119K |
| 代理商： | TIR1000I |
TIR1000, TIR1000I
STANDALONE IrDA
ENCODER AND DECODER
SLLS228F – DECEMBER 1995 – REVISED JULY 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
IrDA encoder function
Serial data from a UART is encoded to transmit data to the optoelectronics. While the serial data input to this
block (U_TXD) is high, the output (IR_TXD) is always low, and the counter used to form a pulse on IR_TXD is
continuously cleared. After U_TXD resets to 0, IR_TXD rises on the falling edge of the seventh 16XCLK. On
the falling edge of the tenth 16XCLK pulse, IR_TXD falls, creating a 3-clock-wide pulse. While U_TXD stays
low, a pulse is transmitted during the seventh to tenth clocks of each 16-clock bit cycle.
U_TXD
16XCLK
IR_TXD
1
2 3 4
5 6 7
8
10
12
14
16
Figure 2. IrDA-SIR Encoding Scheme –
Detailed Timing Diagram
Figure 3. Encoding Scheme – Macro View
16XCLK
U_TXD
IR_TXD
IrDA decoder function
After reset, U_RXD is high and the 4-bit counter is cleared. When a falling edge is detected on IR_RXD, U_RXD
falls on the next rising edge of 16XCLK with sufficient setup time. U_RXD stays low for 16 cycles (16XCLK) and
then returns to high as required by the IrDA specification. As long as no pulses (falling edges) are detected on
IR_RXD, U_RXD remains high.
IR_RXD
16XCLK
U_RXD
1 2 3
4 5 6
7 8
10
12
14
16
Figure 4. IrDA-SIR Decoding Scheme –
Detailed Timing Diagram
Figure 5. Decoding Scheme – Macro View
16XCLK
IR_RXD
U_RXD
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TIR1000IPS | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Standalone IrDA Encoder & Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| TIR1000IPSR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Standalone IrDA Encoder & Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| TIR1000IPW | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Standalone IrDA Encoder & Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| TIR1000IPWG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Standalone IrDA Encoder & Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| TIR1000IPWR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Standalone RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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