- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384970 > TFDT6500E (Vishay Intertechnology,Inc.) D116 - BACKSHELL ENVIRON EMI-RFI STRT MI PDF資料下載
參數(shù)資料
| 型號： | TFDT6500E |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | D116 - BACKSHELL ENVIRON EMI-RFI STRT MI |
| 中文描述： | 2.7 - 5.5V的快速紅外收發(fā)器模塊系列 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 549K |
| 代理商： | TFDT6500E |
TFDU6100E/TFDS6500E/TFDT6500E
TELEFUNKEN
Semiconductors
Pre-Release Information
6
Pending—Rev. A, 03-Apr-98
Recommended Circuit Diagram
The only required components for designing an IrDA 1.2
compatible design using TEMIC FIR transceivers are a
current limiting resistor, R
1
, to the IRED. However,
depending on the entire system design and board layout,
additional components may be required (see Figure 1).
TEMIC FIR 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.
IRED
Cathode
Rxd
V
CC
GND
IRED
Anode
Txd
SD/Mode
NC
TFDx6x00
R1
C1
C2
R2
V
CC2
Rxd
Txd
GND
SC
Note: Outlined components are optional depending on quality of
power supply.
Figure 1.
Recommended Application 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 2 . For IrDA compliant operation, a current control
resistor of 5.6
is recommended. The upper drive current
limitation is dependent 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 quality
of the supply voltage V
CC
and injected noise. An unstable
power supply with dropping voltage during transmission
may reduce sensitivity (and transmission range) of the
transceiver.
Current Control Resistor ( )
I
4.75 V, Min. Efficiency,
Min. VF, Max. R
DSon
5.25 V, Min. Efficiency,
Min. VF, Min. R
DSon
IrDA Field of View: Cone of
15
4.0
6.0
8.0
10.0
12.0
14.0
16.0
0
50
100
150
200
250
300
Figure 2.
I
e
vs. R
l
The placement of these parts is critical. It is strongly
recommended to position C2 as near as possible to the
transceiver power supply pins. A tantalum capacitor
should be used for C1 while a ceramic capacitor is used
for C2. Also, when connecting the described circuit to the
power supply, low impedance wiring should be used.
Table 1.
Recommended Application Circuit Components
Component
Recommended Value
C1
4.7 F, Tantalum
C2
0.1
μ
F, Ceramic
R1
5.6
, 0.25 W (recommend using two 0.125 W
resistors in parallel)
R2
47
, 0.125 W
Mode Switching
The TFDU6100E, TFDS6500E and TFDT6500E powers
on in a no default mode, therefore the data transfer rate
has to be set by a programming sequence as described
below or selected by setting the mode pin. When using the
Mode pin, the standby current might be increased to about
50 to 60
μ
A. In standby mode, the mode input should float
to minimize standby current.
The low frequency mode covers speeds up to 115.2 kbit/s.
Signals with higher data rates should be detected in the
high frequency mode. Lower data frequency data can also
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TFDU6100E | 2.7-5.5V Fast Infrared Transceiver Module Family |
| TFDS6501E | Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDS6401 | Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDS6401-TR3 | Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
| TFDS6501E-TR4 | Fast Infrared Transceiver Module Family (FIR, 4 Mbit/s) for 2.6 V to 5.5 V Operation |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFDT6501E | 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 |
| TFDT6501E-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 |
| TFDT6502E | 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 |
| TFDT6502E-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 |
| TFDU2201 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Low Profile Transceiver Module PIN Photodiode and Infrared Emitter |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。