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參數資料
| 型號： | TFBS6711-TR1 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Low Profile Fast Infrared Transceiver (FIR, 4 Mbit/s) for IrDA Applications |
| 中文描述： | 超薄快速紅外線收發(fā)器（4兆飛行情報區(qū)/秒）為IrDA應用 |
| 文件頁數： | 7/14頁 |
| 文件大小： | 227K |
| 代理商： | TFBS6711-TR1 |
www.vishay.com
264
Document Number
8
4676
Rev. 1.3, 21-Feb-07
TFBS6711
Vishay Semiconductors
Recommended Circuit Diagram
Operated at a clean low impedance power supply the
TFBS6711 needs no additional external components.
However, depending on the entire system design and
board layout, additional components may be required
(see figure 3).
The capacitor C1 is buffering the supply voltage and
eliminates the inductance of the power supply line.
This one should be a Tantalum or other fast capacitor
to guarantee the fast rise time of the IRED current.
Vishay 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 (RXD, SD) and the output RXD should be
directly (DC) coupled to the I/O circuit.
The capacitor C2 combined with the resistor R2 is the
low pass filter for smoothing the supply voltage.
R2, C1 and C2 are optional and dependent on the
quality of the supply voltages V
CCx
and injected
noise. An unstable power supply with dropping volt-
age during transmission may reduce the sensitivity
(and transmission range) of the transceiver.
The placement of these parts is critical. It is strongly
recommended to position C2 as close as possible to
the transceiver power supply pins.
A Tantalum capacitor should be used for C1 while a
ceramic capacitor is used for C2.
In addition, when connecting the described circuit to
the power supply, low impedance wiring should be
used.
When extended wiring is used the inductance of the
power supply can cause dynamically a voltage drop
at V
CC2
. Often some power supplies are not able to
follow the fast current rise time. In that case another
4.7 μF (type, see table under C1) at V
CC2
will be help-
ful.
Keep in mind that basic RF-design rules for circuit
design should be taken into account. Especially
longer signal lines should not be used without termi-
nation. See e.g. "The Art of Electronics" Paul Horo-
witz, Winfield Hill, 19
8
9, Cambridge University Press,
ISBN: 0521370957.
Table 1. Recommended Application Circuit Compo-
nents
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.
Figure 3. Recommended Application Circuit
IRED Anode
V
CC
Gro
u
nd
SD
TXD
RXD
V
CC2
V
CC1
G
N
D
SD
TXD
RXD
R1
R2
C1
C2
C3
19299
Component
C1
Recommended Value
4.7 μF, 16 V
Vishay part#:
293D 475X9 016B
0.1 μF, Ceramic
Vishay part#:
VJ1206 Y 104 J XXMT
C2
R1
3.3 V supply voltage
: no resistor is necessary,
the internal controller is able to control the
current
4.7
Ω
, 0.125 W
R2
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| TFBS6711-TR3 | 功能描述:紅外收發(fā)器 FIR 4Mbit/s 2.4-3.6V Op Voltage RoHS:否 制造商:Vishay Semiconductors 波長:900 nm 連續(xù)數據傳輸: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 |
| TFBS6711-TR4 | 制造商:Vishay Semiconductors 功能描述: 制造商:Vishay Intertechnologies 功能描述:Transceiver Module |
| TFBS6711-TT3 | 功能描述:紅外收發(fā)器 FIR 4Mbit/s 2.4-3.6V Op Voltage RoHS:否 制造商:Vishay Semiconductors 波長:900 nm 連續(xù)數據傳輸: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 |
| TFBS6712 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Low Profile Fast Infrared Transceiver (FIR, 4 Mbit/s) for IrDA Applications with Low voltage Logic (1.8 V) |
| TFBS6712-TR1 | 制造商:Vishay Intertechnologies 功能描述:4 Mbps 1.8 V 50 cm Side View SMT IrDA Low Profile Fast Infrared Transceiver |
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