tfd_4.pdf

Irda. Komputer się łączy, ale połączenie zostaje zaraz przerwane.

To zależy jakie złącze masz na płycie głównej.... Ale fakt , to chodzi najlepiej :) tu jest pełny opis irdy (tfds 4500) sam układ kosztuje ok 11zł


TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken

2.7 V to 5.5 V Serial Infrared Transceiver
Module Family (SIR, 115.2 kbit/s)
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.
Telefunken'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 Telefunken's TOIM3000/ 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.

Features
D Compliant to IrDA 1.2 (Up to 115.2 kbit/s)

D BabyFace (Universal) Package Capable of
Surface Mount Solderability to Side and Top View
Orientation

D 2.7 to 5.5 V Wide Operating Voltage Range
D Low-Power Consumption (1.3 mA Supply Current)
D Power Sleep Mode Through VCC1/SD Pin

D Directly Interfaces with Various Super I/O and
Controller Devices and Telefunken's TOIM3000
and TOIM3232 I/Os

(5 nA Sleep Current)

D Long Range (Up to 3.0 m at 115.2 k/bit/s)

D Built-In EMI Protection - No External Shielding

D Three Surface Mount Package Options

D Few External Components Required
D Backward Compatible to all Telefunken

-
-
-

Necessary

Universal (9.7 × 4.7 × 4.0 mm)
Side View (13.0 × 5.95 × 5.3 mm)
Top View (13.0 × 7.6 × 5.95 mm)

SIR Infrared Transceivers

Applications
D Notebook Computers, Desktop PCs, Palmtop
Computers (Win CE, Palm PC), PDAs

(Cellular Phones, Pagers)

D Digital Still and Video Cameras
D Printers, Fax Machines, Photocopiers, Screen
Projectors

D Telecommunication Products
D Internet TV Boxes, Video Conferencing Systems
D External Infrared Adapters (Dongles)
D Medical and Industrial Data Collection Devices

Package Options
TFDU4100
Baby Face (Universal)

Document Number 82514
Rev. A1.1, 09-Jul-99

TFDS4500
Side View

TFDT4500
Top View

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Ordering Information
Part Number
TFDU4100-TR3
TFDU4100-TT3
TFDS4500-TR3
TFDT4500-TR3

Qty / Reel
1000 pcs
1000 pcs
750 pcs
750 pcs

Description
Oriented in carrier tape for side view surface mounting
Oriented in carrier tape for top view surface mounting

Functional Block Diagram
VCC1/SD

VCC2

Driver
Amplifier

Rxd

Comparator

R1
IRED Anode

AGC
Logic

SC
Txd

IRED Cathode
Open Collector Driver

14876

GND
Figure 1. Functional Block Diagram

Pin Description
Pin Number
"U" and "T" Option "S" Option
1
8

2

1

3
4

7
2

5
6
7
8

6
3
5
4

Function

Description

I/O

IRED anode, should be externally connected to VCC2 through a current control
resistor
IRED Cathode IRED cathode, internally connected to
driver transistor
Txd
Transmit Data Input
Rxd
Received Data Output, open collector.
No external pull-up or pull-down resistor
is required (20 kW resistor internal to device). Pin is inactive during transmission.
NC
Do not connect
VCC1 / SD
Supply Voltage / Shutdown
SC
Sensitivity control
GND
Ground

Active

I
O

HIGH
LOW

I

HIGH

IRED Anode

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Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
"U" Option BabyFace (Universal)
IRED

"S" Option Side View

"T" Option Top View
IRED

Detector

IRED

14885

Detector

Detector

Figure 2. Pinnings

Absolute Maximum Ratings
Reference point Pin GND unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Supply Voltage Range
y
g
g
Input Currents
Output Sink Current
Power Dissipation
Junction Temperature
Ambient Temperature
Range (Operating)
Storage Temperature
Range
Soldering Temperature
Average IRED Current
Repetitive Pulsed IRED
Current
IRED Anode Voltage
Transmitter Data Input
Voltage
Receiver Data Output
Voltage
Virtual Source Size
Maximum Intensity for
Class 1 Operation of
IEC825-1 or EN60825-1
(worst case IrDA SIR
pulse pattern *)

Test Conditions
0 V <= VCC2 <= 6 V
0 V <= VCC1 <= 6 V
For all Pins,
except IRED Anode Pin

Symbol
VCC1
VCC2

Min.
- 0.5
- 0.5

Typ.

Max.
6
6
10

Unit
V
V
mA
mA
mW
°C
°C

PD
TJ
Tamb

-25

Tstg

See Derating Curve

25
200
125
+85

-25

+85

°C

240

°C

100
500

mA
mA

See Recommended Solder Profile
t &amp; lt; 90 us, ton &amp; lt; 20%

215
IIRED (DC)
IIRED (RP)
VIREDA
VTxd

6
VCC1+0.5

V
V

VRxd
Method:
(1-1/e) encircled energy
EN60825, 1997

- 0.5
- 0.5
- 0.5

VCC1+0.5

V

d

2.5

2.8

mm
400

mW/sr

* Note:
Transmitted data: continuously transmitted "0". In normal data transfer operation "0" and "1" will be transmitted with
the same probability. Therefore, for that case, about a factor of two of safety margin is included. However, for worst
case thermal stress testing such data pattern are often used and for this case the 400 mW/sr value has to be taken.

Document Number 82514
Rev. A1.1, 09-Jul-99

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Electrical Characteristics
Tamb = 25_C, VCC = 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Transceiver
Supply Voltage

Test Conditions / Pins

Receive Mode
Transmit Mode, R2 = 47 W
(see Recommended Application Circuit)
Supply Current Pin VCC1 VCC1 = 5.5 V
(Receive Mode)
VCC1 = 2.7 V
Supply Current Pin VCC1 IIRED = 210 mA
(avg) (Transmit Mode)
(at IRED Anode Pin)
VCC1 = 5.5 V
VCC1 = 2.7 V
Leakage Current of IR
VCC1 = OFF, TXD = LOW,
Emitter, IRED Anode Pin VCC2 = 6 V, T = 25 to 85°C
Transceiver Power On
Settling Time

Symbol

Min.

VCC1

Typ.

Max.

2.7
2.0

Unit

5.5
5.5

V
V

ICC1 (Rx)

1.3
1.0

2.5
1.5

mA
mA

ICC1 (Tx)
IL (IREDA)

5.0
3.5
0.005

5.5
4.5
0.5

mA
mA
uA

TPON

50

us

Optoelectronic Characteristics
Tamb = 25_C, VCC = 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Test Conditions
Receiver
Minimum Detection BER = 10-8 (IrDA Specification)
Threshold Irradiance a = ?15°, SIR Mode, SC = LOW
a = ?15°, SIR Mode, SC = HIGH
Maximum Detection a = ?90°, SIR Mode, VCC1 = 5 V
Threshold Irradiance a = ?90°, SIR Mode, VCC1 = 3 V
Logic LOW Receiver SC = HIGH or LOW
Input Irradiance
Output Voltage -
g
Active, C = 15 pF, R = 2.2 kW
Rxd
Non-active, C = 15 pF, R = 2.2 kW
Output Current -
VOL &amp; lt; 0.8 V
Rxd
Rise Time - Rxd
C = 15 pF, R = 2.2 kW
Fall Time - Rxd
C = 15 pF, R = 2.2 kW
Pulse Width - Rxd
Input pulse width = 1.6 us,
Output
115.2 kbit/s
Jitter, Leading Edge Over a Period of 10 bit, 115.2 kbit/s
of Output Signal
Latency

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Symbol

Ee
Ee
Ee
Ee
Ee

Min.

Typ.

Max.

Unit

6
3.3
8

20
10
5
15

35
15

mW/m2
mW/m2
kW/m2
kW/m2
mW/m2

4

VOL
VOH
IOL

0.5
VCC1-0.5

tr (Rxd)
tf (Rxd)
tPW

20
20
1.41

V
V
mA

1400
200
8

ns
ns
us

2

us

500

us

4

ti
tL

0.8

100

Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Optoelectronic Characteristics
Tamb = 25_C, VCC = 2.7 V to 5.5 V unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameters
Transmitter
IRED Operating
Current

Logic LOW Transmitter Input Voltage
Logic HIGH Transmitter Input Voltage
Output Radiant Intensity

Test Conditions
IRED Operating Current can be
adjusted by Variation of R1.
Current Limiting Resistor is in
Series to IRED:
R1 = 14 Ohm, VCC2 = 5.0 V

Min.

Max.

Unit

0.2

IIRED

Typ.

0.28

A

VIL (Txd)

In Agreement with IEC825 Eye
Safety Limit, if
Current Limiting Resistor is in
Series to IRED:
R1 = 14 Ohm, VCC2 = 5.0 V,
? = ?15_
Txd Logic LOW Level

0

0.8

V

VIH (Txd)

Angle of Half
Intensity
Peak Wavelength of
Emission
Half-Width of
Emission Spectrum
Optical Rise Time,
Fall Time
Optical Overshoot
Rising Edge Peak- Over a Period of 10 bits,
to-Peak Jitter of
Independent of
Optical Output Pulse Information content

Document Number 82514
Rev. A1.1, 09-Jul-99

Symbol

2.4

VCC1+0.5

V

Ie

45

200

mW/sr

0.04

mW/sr
_

900

nm

Ie
a
lP

140

?24
880
60

tropt,
tfopt

200

nm
600

ns

25
0.2

%
ms

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Recommended Circuit Diagram

480
440

360
320
280
240
200
160
Vcc = 4.75 V, min. efficiency,
15° off axis, max. VF, max. VCEsat

120

VCC2
VCC1
IRED
Cathode

R2
Rxd

Rxd
C2

40

IRED
Anode
Txd

VCC1/SD

0
6

8

10

12

14

Current Control Resistor ( W )

SC

GND

C1

80

R1

TFDx4x00

Txd

Vcc = 5.25 V,
max. efficiency, center,
min. VF, min. VCEsat

400

Intensity (mW/sr)

The only required components for designing an
IrDA 1.2 compatible design using Telefunken 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 3). It is recommended that the capacitors
C1 and C2 are positioned as near as possible to the
transceiver power supply pins. 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.

NC

14377

16

Figure 4. Ie vs. R1

GND
760
720
680
640
600
560
520
480
440
400
360
320
280
240
200
160
120
80
40
0

SC
Note: Outlined components are optional depending
on the quality of the power supply.

14877

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 figures 4 and 5), e.g. for IrDA compliant operation (VCC2 = 5 V ? 5%), a current control resistor of
14 Ohm 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.
R2, C1 and C2 are optional and dependent on the quality of the supply voltage VCC1 and injected noise. An
unstable power supply with dropping voltage during
transmission may reduce sensitivity (and transmission
range) of the transceiver.

Intensity (mW/sr)

Figure 3. Recommended Application Circuit

Vcc=3.3V, max. intensity on
axis, min. VF, min. VCEsat

cc
&quot; 15° off axis, max. VF, max. VCEsat

V =2.7V, min. intensity

0
14378

1

2

3

4

5

6

Serial Resistor ( W )

7

8

Figure 5. Ie vs. R1

Table 1. Recommended Application Circuit Components

Component
Recommended Value
C1
4.7 mF, Tantalum
C2
0.1 uF, Ceramic
R1
14 Ohm, 0.25 W (recommended using
two 7 Ohm, 0.125 W resistors in series)
R2
47 Ohm , 0.125 W
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Vishay Part Number
293D 475X9 016B 2T
VJ 1206 Y 104 J XXMT
CRCW-1206-7R00-F-RT1
CRCW-1206-47R0-F-RT1
Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
The sensitivity control (SC) pin allows the minimum
detection irradiance threshold of the transceiver to be
lowered when set to a logic HIGH. Lowering the irradiance threshold increases the sensitivity to infrared
signals and increases transmission range up to 3 meters. However, setting the Pin SC to logic HIGH also
makes the transceiver more susceptable to transmission errors due to an increased sensitivity to
fluorescent light disturbances. It is recommended to
set the Pin SC to logic LOW or left open if the increased
range is not required or if the system will be operating
in bright ambient light.
The guide pins on the side-view and top-view packages are internally connected to ground but should not
be connected to the system ground to avoid ground
loops. They should be used for mechanical purposes
only and should be left floating.

approximately 50 ms. Telefunken's TOIM3232 interface circuit is designed for this shutdown feature. The
VCC_SD, S0 or S1 outputs on the TOIM3232 can be
used to power the transceiver with the necessary supply current.
If the microcontroller or the microprocessor is unable
to drive the supply current required by the transceiver,
a low-cost SOT23 pnp transistor can be used to switch
voltage on and off from the regulated power supply
(see figure 7). The additional component cost is minimal and saves the system designer additional power
supply costs.
IIRED
Power
Supply

+
- Regulated Power Supply
50 mA

IRED
Anode

Shutdown
The internal switch for the IRED in Telefunken SIR
transceivers is designed to be operated like an open
collector driver. Thus, the Vcc2 source can be an unregulated power supply while only a well regulated
power source with a supply current of 1.3 mA connected to VCC1/SD is needed to provide power to the
remainder of the transceiver circuitry in receive mode.
In transmit mode, this current is slightly higher
(approximately 4 mA average at 3 V supply current)
and the voltage is not required to be kept as stable as
in receive mode. A voltage drop of VCC1 is acceptable
down to about 2.0 V when buffering the voltage directly
from the Pin VCC1 to GND see figure 3).
This configuration minimizes the influence of high current surges from the IRED on the internal analog
control circuitry of the transceiver and the application
circuit. Also board space and cost savings can be
achieved by eliminating the additional linear regulator
normally needed for the IRED's high current requirements.
The transceiver can be very efficiently shutdown by
keeping the IRED connected to the power supply VCC2
but switching off VCC1/SD. The power source to
VCC1/SD can be provided directly from a microcontroller (see figure 6). In shutdown, current loss is
realized only as leakage current through the current
limiting resistor to the IRED (typically 5 nA). The settling time after switching VCC1/SD on again is

Document Number 82514
Rev. A1.1, 09-Jul-99

R1

Microcontroller or
Microprocessor
20 mA

IS
VCC1/SD

TFDU4100 (Note: Typical Values Listed)
Receive Mode
@ 5 V: IIRED = 210 mA, IS = 1.3 mA
@ 2.7 V: IIRED = 210 mA, IS = 1.0 mA
Transmit Mode
@ 5 V: IIRED = 210 mA, IS = 5 mA (Avg.)
@ 2.7 V: IIRED = 210 mA, IS = 3.5 mA (Avg.)

14878

Figure 6.
IIRED
Power
Supply

+
-

Regulated Power Supply
50 mA

R1

IRED
Anode
Microcontroller or
Microprocessor
20 mA

IS
VCC1/SD

TFDU4100 (Note: Typical Values Listed)
Receive Mode
@ 5 V: IIRED = 210 mA, IS = 1.3 mA
@ 2.7 V: IIRED = 210 mA, IS = 1.0 mA
Transmit Mode
@ 5 V: IIRED = 210 mA, IS = 5 mA (Avg.)
@ 2.7 V: IIRED = 210 mA, IS = 3.5 mA (Avg.)

14879

Figure 7.

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Recommended SMD Pad Layout
The leads of the device should be soldered in the center position of the pads.
7x1=7
0.6

2.5
1

8
1

15067

Figure 8. TFDU4100 BabyFace (Universal)

11.8
5.1
2.5
8

7

2.5
6

5
1.8

0.63
1.1
1.0

0.6

8.3

1

2.2
1
2.5

2
2.5

3

4

5.08
15069

Figure 9. TFDS4500 Side View Package

8.89
1.27

0.8

1.8
1

8

15068

Figure 10. TFDT4500 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 transceiver.

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Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Recommended Solder Profile
10 s
max. @
230°C

210
2 - 4°C/s

180
150
120

120 - 180 s

90 s max.

90
60

2 - 4°C/s

30

Peak Operating Current ( mA )

600

240

Temperature (° C )

Current Derating Diagram

0
0

50

100

14874

150 200 250
Time ( s )

300

Document Number 82514
Rev. A1.1, 09-Jul-99

400
300
200

Current derating as a function of
the maximum forward current of
IRED. Maximum duty cycle: 25%.

100
0
-40 -20 0

350

Figure 11. Recommended Solder Profile

500

14880

20 40 60 80 100 120 140
Temperature ( 5C )

Figure 12. Current Derating Diagram

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
TFDU4100 - BabyFace (Universal) Package (Mechanical Dimensions)

12249

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10 (13)

Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
TFDS4500 - Side View Package (Mechanical Dimensions)

14322

Document Number 82514
Rev. A1.1, 09-Jul-99

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TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
TFDT4500 - Top View Package (Mechanical Dimensions)

14325

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Document Number 82514
Rev. A1.1, 09-Jul-99

TFDU4100/TFDS4500/TFDT4500
Vishay Telefunken
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as
their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances ( ODSs ).
The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of
ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency ( EPA ) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.

We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer application
by the customer. Should the buyer use Vishay Telefunken products for any unintended or unauthorized application, the
buyer shall indemnify Vishay Telefunken against all claims, costs, damages, and expenses, arising out of, directly or
indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423

Document Number 82514
Rev. A1.1, 09-Jul-99

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