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參數(shù)資料
| 型號： | TFDU5307 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | IrDA with long Link Distance, works as Remote Controll; |
| 中文描述： | 的IrDA鏈路距離長，工程，遠程控制; |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 384K |
| 代理商： | TFDU5307 |
www.vishay.com
8
Document Number 82616
Rev. 1.4, 24-Jun-04
VISHAY
TFDU5307
Vishay Semiconductors
I/O and Software
In the description, already different I/Os are men-
tioned. Different combinations are tested and the
function verified with the special drivers available
from the I/O suppliers. In special cases refer to the I/
O manual, the Vishay application notes, or contact
directly Vishay Sales, Marketing or Application.
Programming
Pulse duration Switching
After Power-on the TFDU5307 is in the default short
Rxd pulse duration mode.
Some ENDECs are not able to decode short pulses
as valid SIR pulses. Therefore an additional mode
with extended pulse duration (same as in standard
SIR transceivers) is added in TFDU5307. TFDU5307
is set to the "short output pulse" as default after power
on, and after recovering from the shutdown mode (SD
being active longer than 1.5 ms).
To switch the transceivers from the short Rxd pulse
duration mode to the long pulse duration mode and
vice versa, follow the procedure described below.
Setting to the ENDEC compatibility mode
with an Rxd pulse duration of 2
μ
s
1. Set SD input to logic "HIGH".
2. Set Txd input to logic "HIGH". Wait t
s
≥
200 ns.
3. Set SD to logic "LOW" (this negative edge latches
state of Txd, which determines speed setting).
4. After waiting t
h
≥
200 ns.
After that Txd is enabled as normal Txd input and the
Rxd output is set for the longer Rxd - pulse duration
mode.
Setting back to the default mode with a
400 ns pulse duration
1. Set SD input to logic "HIGH".
2. Set Txd input to logic "LOW". Wait t
s
≥
200 ns.
3. Set SD to logic "LOW" (this negative edge latches
state of Txd, which determines speed setting).
4. After waiting t
h
≥
200 ns Txd can be set to logic
"LOW". The hold time of Txd is limited by the maxi-
mum allowed pulse length.
After that Txd is now enabled as normal Txd input and
the Rxd output is set for the short Rxd - pulse duration
mode.
The timing of the pulse duration changing procedure
is quite uncritical. However, the whole change must
not take more than 600
μ
s. See in the spec. "Shut-
down Active Time Window for Programming"
Simplified Method
Setting the device to the long pulse duration is simply
applying a short active (less than 600
μ
s) pulse to
SD. In any case a short SD pulse will force the device
to leave the default mode and go the compatibility
mode. Vice versa applying a 1.5 ms (minimum) pulse
at SD will cause the device to go back to the default
mode by activating a power-on-reset and setting the
device to the default short pulse mode. This simplified
method takes more time but may be easier to handle.
Figure 2. Timing Diagram for changing the output pulse duration
SD
50%
ts
th
High:
TxD 50%
50%
18150
Low:
400 ns
2
μ
s
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFDU5307 | 制造商:Vishay Intertechnologies 功能描述:IRDA TRANSCIEVER |
| TFDU5307-TR1 | 功能描述:TXRX IRDA 1.152MBIT SIDE 8-SMD RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> IrDA 收發(fā)器模塊 系列:* 產(chǎn)品變化通告:Product Discontinuation 30/Sept/2009 產(chǎn)品目錄繪圖:GP2W Series 標準包裝:1 系列:* 數(shù)據(jù)速率:115.2kbs（SIR） 電源電壓:2.4 V ~ 3.6 V 無效電流，標準值@ 25° C:70µA 通信距離，低功率:20cm 方向:側(cè)視圖 工作溫度:-40°C ~ 85°C 尺寸:8.3mm x 2.1mm x 1.7mm 標準:IrPHY 1.4 關(guān)機:* 包裝:Digi-Reel® 其它名稱:425-2614-6 |
| TFDU5307-TR3 | 功能描述:紅外收發(fā)器 MIR 1.152 Mbits/s RoHS:否 制造商:Vishay Semiconductors 波長:900 nm 連續(xù)數(shù)據(jù)傳輸:115.2 Kbit/s 傳輸距離:1 m 輻射強度:60 mW/sr 半強度角度:44 deg 脈沖寬度:2 us 最大上升時間:100 ns 最大下降時間:100 ns LED 電源電壓:- 0.5 V to 6 V 最大正向電流:80 mA 工作電壓:2.4 V to 5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 尺寸:6 mm x 3.1 mm x 1.9 mm 封裝 / 箱體: 封裝:Reel |
| TFDU5307-TT1 | 功能描述:紅外收發(fā)器 MIR 1.152 Mbits Infrared RoHS:否 制造商:Vishay Semiconductors 波長:900 nm 連續(xù)數(shù)據(jù)傳輸:115.2 Kbit/s 傳輸距離:1 m 輻射強度:60 mW/sr 半強度角度:44 deg 脈沖寬度:2 us 最大上升時間:100 ns 最大下降時間:100 ns LED 電源電壓:- 0.5 V to 6 V 最大正向電流:80 mA 工作電壓:2.4 V to 5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 尺寸:6 mm x 3.1 mm x 1.9 mm 封裝 / 箱體: 封裝:Reel |
| TFDU5307-TT3 | 功能描述:TXRX IRDA 1.152MBIT TOP 8-SMD RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> IrDA 收發(fā)器模塊 系列:* 產(chǎn)品變化通告:Product Discontinuation 30/Sept/2009 產(chǎn)品目錄繪圖:GP2W Series 標準包裝:1 系列:* 數(shù)據(jù)速率:115.2kbs（SIR） 電源電壓:2.4 V ~ 3.6 V 無效電流，標準值@ 25° C:70µA 通信距離，低功率:20cm 方向:側(cè)視圖 工作溫度:-40°C ~ 85°C 尺寸:8.3mm x 2.1mm x 1.7mm 標準:IrPHY 1.4 關(guān)機:* 包裝:Digi-Reel® 其它名稱:425-2614-6 |
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