- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384970 > TFDT4500 (Vishay Intertechnology,Inc.) CONNECTOR ACCESSORY PDF資料下載
參數(shù)資料
| 型號(hào)： | TFDT4500 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | CONNECTOR ACCESSORY |
| 中文描述： | 連接器附件 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 554K |
| 代理商： | TFDT4500 |
TFDU4100/TFDS4500/TFDT4500
TELEFUNKEN
Semiconductor
Pending—Rev. A, 03-Apr-98
5
Pre-Release Information
Optoelectronic Characteristics (Cont’d)
Parameter
Symbol
Test Conditions
a
Min
b
Typ
c
Max
b
Unit
Transmitter
IRED Operating Current
d
I
D
Current limiting resistor is series to
IRED: R
1
= 8.2
, V
CC2
= 5V
0.3
0.4
A
Logic Low Transmitter Input Voltage
V
IL
(T
xd
)
0
0.8
V
Logic High Transmitter Input Voltage
V
IH
(T
xd
)
2.4
V
CC1
+0.5
Output Radiant Intensity
e
I
eH
Current limiting resistor in series to
IRED: R
1
= 8.2
@ V
CC2
= 5V,
α
=
±
15
45
140
200
mW/sr
Output Radiant Intensity
I
eL
α
Logic Low Level
0.04
mW/sr
Angle of Half Intensity
±
24
Peak Wavelength of Emission
λ
P
880
900
nm
Halfwidth of Emission Spectrum
60
Optical Rise Time, Fall Time
t
R
, t
F
115.2 kHz square wave signal, duty
cycle 1:1
200
600
ns
Optical Overshoot
25
%
Rising Edge Peak–to–Peak Jitter
t
j
Over a period of 10 bits, independent
of information content
0.2
μ
s
Notes
a.
b.
c.
d.
e.
T
amb
= 25 C, V
CC
= 2.7 – 5.5 V unless otherwise noted.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
IRED Operating Current can be adjusted by variation of R
1
In agreement with IEC 825 eye safety limit
Recommended Circuit Diagram
The only required components for designing an IrDA 1.2
compatible design using TEMIC SIR transceivers are a
current limiting resistor to the IRED. However,
depending on the entire system design and board layout,
additional components may be required (see Figure 1).
It is recommended that the capacitors C1 and C2 are
positioned as near as possible to the transceiver power
supply pins, as in the proposed layout in Figure 1. A
tantalum capacitor should be used for C1, while a ceramic
capacitor should be used for C2 to suppress RF noise.
Also, when connecting the described circuit to the power
supply, low impedance wiring should be used.
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
Fig 2. For IrDA compliant operation, a current control
resistor of 8–12
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
and the eye safety limitations given by IEC825–1.
IRED
Cathode
Rxd
V
CC1/
SD
GND
IRED
Anode
Txd
SC
NC
TFDx4x00
R1
C1
C2
R2
V
CC2
V
CC1/
SD
Rxd
Txd
GND
SC
Note: Outlined components are optional depending on quality of
power supply.
Figure 1.
Recommended Application Circuit
R2, C1 and C2 are optional and dependent on the quality
of the supply voltage V
CC1
and injected noise. An
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TFDU4202-TR1 | Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard |
| TFDU4202-TR3 | Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard |
| TFDU4204 | Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard |
| TFDU4203 | Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard |
| TFDU4203-TR1 | Integrated Low Profile Transceiver Module for Telecom Applications ? IrDA Standard |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFDT6000-TR3 | 制造商:TEMIC 功能描述: |
| TFDT6500E | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:2.7-5.5V Fast Infrared Transceiver Module Family |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。