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PDF TFDS4500 Data sheet ( Hoja de datos )

Número de pieza TFDS4500
Descripción 2.7-5.5V Serial Infrared Transceiver Module Family
Fabricantes Vishay Telefunken 
Logotipo Vishay Telefunken Logotipo



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No Preview Available ! TFDS4500 Hoja de datos, Descripción, Manual

TELEFUNKEN TFDU4100/TFDS4500/TFDT4500
Semiconductor
2.7–5.5V Serial Infrared Transceiver Module Family
(SIR, 115.2 kbit/s)
Features
Applications
D Compliant to IrDA 1.2 (up to
115.2 kbit/s)
D Wide Operating Voltage Range
(2.7 to 5.5 V )
D Low Power Consumption
(1.3 mA Supply Current)
D Power Sleep Mode Through
VCC1/SD Pin (5 nA Sleep
Current)
D Long Range (up to 3.0 m at 115.2
kbit/s)
D Three Surface Mount Package
Options
Universal (9.7 x 4.7 x 4.0 mm)
Side View (13.0x5.95x5.3mm)
Top View (13.0x7.6x5.95mm)
D BabyFace (Universal) Package
Capable of Surface Mount
Solderability to Side- and
Top-View Orientation
D Directly Interfaces with Various
Super I/O and Controller Devices
and TEMIC’s TOIM3000 and
TOIM3232 I/Os
D Few External Components
Required
D Backward Compatible to All
TEMIC SIR Infrared
Transceivers
D Built–in EMI Protection – No
External Shielding Necessary
D Notebook Computers, Desktop
PCs, Palmtop Computers (Win
CE, Palm PC), PDAs
D Digital Still and Video Cameras
D Printers, Fax Machines,
Photocopiers, Screen Projectors
D Telecommunication Products
(Cellular Phones, Pagers)
D Internet TV Boxes, Video
conferencing systems
D External Infrared Adapters
(Dongles)
D Medical and Industrial Data
Collection Devices
Description
The TFDU4100, TFDS4500, and TFDT4500 are a family
of low-power infrared transceiver modules compliant to
the IrDA 1.2 standard for serial infrared (SIR) data
communication, supporting IrDA speeds up to 115.2
kbit/s. Integrated within the transceiver modules are a
photo PIN diode, infrared emitter (IRED), and a
low-power analog control IC to provide a total front–end
solution in a single package. TEMIC’s SIR transceivers
are available in three package options, including our
BabyFace package (TFDU4100), the smallest SIR
transceiver available on the market. This wide selection
provides flexibility for a variety of applications and space
constraints.
The transceivers are capable of directly interfacing with
a wide variety of I/O chips which perform the pulse-width
modulation/demodulation function, including TEMIC’s
TOIM3000 and TOIM3232. At a minimum, a
current-limiting resistor in series with the infrared emitter
and a Vcc bypass capacitor are the only external
components required to implement a complete solution.
Package Options
TFDU4100
Baby Face (Universal)
TFDS4500
Side View
TFDT4500
Top View
This product is currently in devleopment. Inquiries regarding the status of this product should be directed to TEMIC Marketing.
Pending—Rev. A, 03-Apr-98
Pre-Release Information
1

1 page




TFDS4500 pdf
TELEFUNKEN TFDU4100/TFDS4500/TFDT4500
Semiconductor
Optoelectronic Characteristics (Cont’d)
Parameter
Symbol
Test Conditionsa
Minb Typc
Transmitter
IRED Operating Currentd
Logic Low Transmitter Input Voltage
Logic High Transmitter Input Voltage
Output Radiant Intensitye
ID
VIL (Txd)
VIH (Txd)
IeH
Current limiting resistor is series to
IRED: R1 = 8.2 , VCC2 = 5V
Current limiting resistor in series to
IRED: R1 = 8.2@ VCC2 = 5V, α =
±15_
0
2.4
45
0.3
140
Output Radiant Intensity
Angle of Half Intensity
IeL Logic Low Level
α
±24
Peak Wavelength of Emission
Halfwidth of Emission Spectrum
λP
880
60
Optical Rise Time, Fall Time
tR, tF
115.2 kHz square wave signal, duty
cycle 1:1
200
Optical Overshoot
Rising Edge Peak–to–Peak Jitter
tj
Over a period of 10 bits, independent
of information content
Notes
a. Tamb = 25_C, VCC = 2.7 – 5.5 V unless otherwise noted.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. IRED Operating Current can be adjusted by variation of R1
e. In agreement with IEC 825 eye safety limit
Maxb
0.4
0.8
VCC1+0.5
200
0.04
900
600
25
0.2
Unit
A
V
mW/sr
mW/sr
_
nm
ns
%
µs
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).
given by the absolute maximum ratings on the data sheet
and the eye safety limitations given by IEC825–1.
VCC2
VCC1/SD
TFDx4x00
R1
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.
Rxd
Txd
GND
R2
IRED IRED
Cathode Anode
Rxd Txd
C1 C2 VCC1/SD SC
GND
NC
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
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 VCC1 and injected noise. An
Pending—Rev. A, 03-Apr-98
5
Pre-Release Information

5 Page





TFDS4500 arduino
TELEFUNKEN TFDU4100/TFDS4500/TFDT4500
Semiconductor
Recommended SMD Pad Layouta
TFDU4100 Ć BabyFace (Universal) Package
TFDS4500 Ć Side View Package
TFDT4500 Ć Top View Package
(note: leads of the device should be at least 0.3
mm within the ends of the pads. Pad 1 is longer to
designate pin 1 connection to transciver)
a. The leads of the device should be soldered in the center position.
Pending—Rev. A, 03-Apr-98
Pre-Release Information
11

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