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參數資料
| 型號： | TFDS6501E-TR3 |
| 廠商： | VISHAY TELEFUNKEN |
| 元件分類： | 搖控器 |
| 英文描述： | TRANSMITTER/RECEIVER IC, DMA8 |
| 封裝： | 13 X 5.30 MM, 5.95 MM HEIGHT, STAGGERED, SMT-8 |
| 文件頁數： | 15/16頁 |
| 文件大小： | 260K |
| 代理商： | TFDS6501E-TR3 |
TFDU6102E/TFDS6502E/TFDT6502E
Vishay Telefunken
TFDU6101E/TFDS6501E/TFDT6501E
Rev. B1.2, 07.04.99
8
www.vishay.de
FaxBack +1-408-970-5600
Document Number 82519
Recommended Circuit Diagram
The only required component for designing an
IrDA 1.3 solution using Vishay Telefunken transceiv-
ers is a current limiting resistor, R1, to the IRED.
However, depending on the entire system design and
board layout, additional components may be required
(see figure 3).
Mode
Txd
SD/Mode
GND
VCC
IRED
Cathode
Rxd
IRED
Anode
TFDx6x0xE
R1
C1
C2
R2
Rxd
Txd
GND
SD/Mode
Note: Outlined components are optional depending
on the quality of the power supply.
VCC2
VCC1
Figure 3. Recommended Application Circuit
Vishay Telefunken transceivers integrate a sensitive
receiver and a built-in power driver. The combination
of both needs a careful circuit board layout. The use of
thin, long, resistive and inductive wiring should be
avoided. The inputs (Txd, SD/ Mode) and the output
Rxd should be directly (DC) coupled to the I/O circuit.
R1 is used for controlling the current through the
IR emitter. For increasing the output power of the
IRED, the value of the resistor should be reduced.
Similarly, to reduce the output power of the IRED, the
value of the resistor should be increased. For typical
values of R1 see figure 4. For IrDA compliant opera-
tion,
a
current
control
resistor
of
7.2
is
recommended. For compensating losses of the cos-
metic window, reducing that value to 5.6
is
acceptable. The upper drive current limitation is de-
pendent on the duty cycle and is given by the absolute
maximum ratings on the data sheet.
R2, C1 and C2 are optional and dependent on the qual-
ity of the supply voltage VCC and injected noise. An
unstable power supply with dropping voltage during
transmission may reduce sensitivity (and transmission
range) of the transceiver.
The placement of these parts is critical. It is strongly
recommended to position C2 as near as possible to the
transceiver power supply pins. An electrolytic capaci-
tor should be used for C1 while a ceramic capacitor is
used for C2.
Table 1. Recommended Application Circuit Components
Component
Recommended Value
Vishay Part Number
C1
4.7
mF, Tantalum
293D 475X9 016B 2T
C2
0.1
F, Ceramic
VJ 1206 Y 104 J XXMT
R1
5 V supply voltage: 7.2
, 0.25 W
(recommend using
two 3.6
W, 0.125 W resistors in series)
3.3 V supply voltage: 3.6
, 0.25 W
(recommend using
two 1.8
W, 0.125 W resistors in series)
CRCW–1206–3R60–F–RT1
CRCW–1206–1R80–F–RT1
R2
47
, 0.125 W
CRCW–1206–47R0–F–RT1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TFDS6501E-TR4 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDS6502E | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDS6502E-TR3 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDT4000 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Integrated Transceiver |
| TFDT4500 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:2.7-5.5V Serial Infrared Transceiver Module Family |
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