TFDU4201A-TR3 [VISHAY]
Telecom Circuit, 1-Func, 9.90 X 6.10 MM, 7.60 MM HEIGHT, MODULE-8;
| 型号： | TFDU4201A-TR3 |
| 厂家： | 
VISHAY |
| 描述： | Telecom Circuit, 1-Func, 9.90 X 6.10 MM, 7.60 MM HEIGHT, MODULE-8 电信 电信集成电路 |
| 文件： | 总10页 (文件大小：451K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TFDU4201A
Vishay Telefunken
Integrated Low Profile Transceiver Module
for Telecom Applications – IrDA Standard
Description
The miniaturized TFDU4201 is an ideal transceiver for
Package
applicationsintelecommunicationslikemobilephones
and pagers. The infrared transceiver is compatible to
the IrDA Low Power physical layer specification up to
a data rate of 115 kbit/s. TFDU4201A is a TFDU4201
attached to a 4.75 mm spacer.
TFDU4201A is electrically identical with TFDU4201.
The only difference is that these devices are soldered
to a PCB as spacer to be compliant with a customer
demand for centering the optical axis to a given
window.
Features
Package Dimension:
Wide Supply Voltage Range (2.4 V to 3.6 V)
L 9.9 mm x W 6.1 mm x H 7.6 mm
Operational down to 2.0 V
Fewest External Components
Internal Current Control
Tri–State Output (Rxd)
High EMI Immunity
Compatible to IrDA Low Power Standard
SMD Side View
Lowest Power Consumption
55 µA Receive Mode, 1 µA Shutdown
Only 30 mA IRED Peak Current During
Transmission
SD Pin
Applications
Mobile Phones, Pagers, Personal Digital Assistants
(PDA), Handheld Battery Operated Equipment
Document Number 82530
Rev. A1.4, 29-Jan-01
www.vishay.com
1 (10)
TFDU4201A
Vishay Telefunken
Ordering Information
Part Number
TFDU4201A–TR3
Qty / Reel
600
Description
Oriented in carrier tape for side view mounting,
TFDU4201 on a 4.75 mm thick spacer
Functional Block Diagram
VCC
Tri–State
Driver
Comparator
Rxd
Amplifier
Control
Logic
Controlled
Driver
Txd
Control
SD
GND
GND
Figure 1. Functional Block Diagram
Pin Description
Pin
1
2
3
4
Symbol
Description
I/O
O
Active
LOW
V
CC
Supply Voltage
IRED GND
IRED GND
Rxd
IRED Cathode Ground, Ground
IRED Cathode Ground, Ground
Output, Received Data, Tri-state, Floating in
Shutdown Mode (V /SD = Low)
CC
5
6
7
8
Txd
SD
GND
NC
Input Transmit Data
Shutdown
IRED Cathode Ground, Ground
I
I
HIGH
HIGH
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2 (10)
Document Number 82530
Rev. A1.4, 29-Jan-01
TFDU4201A
Vishay Telefunken
Absolute Maximum Ratings
Reference Point Pin 8, unless otherwise noted.
Parameter
Supply Voltage Range
Input Current
Test Conditions
Symbol Min. Typ.
Max.
6
10
Unit
V
Remarks
V
CC
–0.5
mA All Input Pins
Output Sink Current
Power Dissipation
Junction Temperature
Ambient Temperature
Range (Operating)
Storage Temperature
Range
Soldering Temperature
25
mA
P
T
T
amb
200
125
85
mW See Figure 3
°C
°C
tot
J
–25
–40
T
stg
100
240
°C
t = 20 s @215°C
215
°C See Vishay
Telefunken IrDA
Design Guide
Average IRED Current*)
Repetitive Pulsed IRED*)
Current
I
I
(DC)
125
500
mA
IRED
(RP)
mA <90 µs, t <20%
IRED
on
Transmitter Data Input
Voltage
Receiver Data Output
Voltage
V
–0.5
–0.5
V
CC
V
CC
+0.5
V
V
Txd
V
Rxd
+0.5
Virtual source size
Method: (1–1/e)
encircled energy
d
2
mm
Compatible to Class 1 operation of IEC 60825 or EN60825 with worst case IrDA SIR pulse pattern, 115.2 kbit/s
*)
Note: Maximum values of IRED. Cannot be reached due to implemented current source.
Electrical Characteristics
Tested for the following parameters (V = 2.4 V to 3.6 V, 25°C, unless otherwise stated)
CC
Parameter
Test Conditions
Symbol Min. Typ. Max. Unit
Remarks
Transceiver
Supported
Data Rates
Supply
Voltage Range
Supply Current
Base band
9.6
2.4
115.2 kbit/s
V
3.6
80
90
V
Operational Down to 2.0 V
CC
V
CC
= 2.4 V to 5.5 V,
I
50
70
µA Receive Mode,
full Temperature Range
µA
S
S
E = 0
e
V
CC
= 2.4 V to 5.5 V,
I
10 klx Sunlight
Shutdown Mode
I
10
5
100
10
nA Entire Temperature Range
nA Room Temperature 25°C
Sshdown
IRED Peak Current V = 5.5 V
I
Str
38
35
45
40
mA SIR Transmit
mA
CC
Transmitting
V
CC
= 2.4 V
Transceiver
“Power On“
Settling Time
50
µs Time from Switching on
V
CC
to Established
Specified Operation
Document Number 82530
Rev. A1.4, 29-Jan-01
www.vishay.com
3 (10)
TFDU4201A
Vishay Telefunken
Optoelectronic Characteristics
Tested for the following parameters (V = 2.4 V to 3.6 V, 25°C, unless otherwise stated)
CC
Parameter
Receiver
Minimum Detection
Threshold Irradiance
Maximum Detection
Threshold Irradiance
Test Conditions
Symbol
Min.
Typ Max.
Unit
Remarks
2
|α| ≤ ±15°
= 2.4 V to 5.5 V
|α| ≤ ±90°
= 5 V
|α| ≤ ±90°
= 3 V
E
25
40 mW/m
e, min
e, max
e, max
V
CC
2
E
E
3300
8000
5000
15000
W/m
W/m
V
CC
2
V
CC
2
Logic Low Receiver
Input Irradiance
E
4
mW/m
e,max,low
Output Voltage Rxd
Active
V
OL
0.5
0.8
V
C = 15 pF,
R = 2.2 kΩ
Non Active
V
OH
V
CC
–0.5
V
C = 15 pF,
R = 2.2 kΩ
Output Current Rxd
4
mA
ns
V
OL
< 0.8 V
Rise Time @Load:
C = 15 pF, R = 2.2k
Fall Time @Load:
C = 15 pF, R = 2.2k
t
20
200
200
20
r
t
20
ns
f
Rxd Signal Electrical 2.4 kbit/s, Input Pulse
t
p
1.4
µs
Output Pulse Width
Width 1.41 µs to 3/16
of bit Duration
Rxd Signal Electrical 115.2 kbit/s, Input Pulse
t
1.4
4.5
2
µs
µs
p
Output Pulse Width
Width 1.41 µs to 3/16
of bit Duration
Output Delay Time
(Rxd), Leading Edge @ 40 mW/m
Optical Input to
Output Level = 0.5 V
t
dl
1
CC
2
Electrical Output
Jitter, Leading Edge
of Output Signal
Output Delay Time
(Rxd), Trailing Edge
Optical Input to
Over a Period of 10 bit,
115.2 kbit/s
t
300
6.5
ns
j
Output Level = 0.5 V
t
dt
µs
CC
2
40 mW/m
Electrical Output
Latency
t
L
100
200
µs
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4 (10)
Document Number 82530
Rev. A1.4, 29-Jan-01
TFDU4201A
Vishay Telefunken
Optoelectronic Characteristics (continued)
Tested for the following parameters (V = 2.4 V to 3.6 V, 25°C, unless otherwise stated)
CC
Parameter
Transmitter
Test Conditions
Symbol Min. Typ Max. Unit
Remarks
Logic Low Transmitter Input
Voltage
Logic High Transmitter
Input Voltage
V (Txd)
0
0.8
V
V
IL
V (Txd) 2.4
IH
V
CC
Controlled Current
I = 4 mW/sr
to 28 mW/sr
I
F1
25 30
35
mA Voltage Range
2.4 V to 5.5 V
e
in |α| ≤ ±15°
Output Radiant
Intensity, |α| ≤ ±15°
I
F1
= 25 mA to 35 mA
I
e
4
8
28 mW/sr Current
Controlled,
20% duty cycle.
Peak Emission Wavelength
Spectral Emission
Bandwidth
λ
850
900
nm
nm
p
60
Optical Rise/Falltime
115.2 kHz Square
Wave Signal
200
ns
(duty cycle 1:1)
Optical Output Pulse
Duration
Input Pulse Duration
1.6 µs
1.6 2.2
µs
Output Radiant Intensity
Overshoot, Optical
Logic Low Level
0.04 µW/sr
25
%
Rising Edge Peak to
Peak Jitter
Over a Period of
10 bits, Independent of
Information Content
t
j
0.2
µs
Recommended SMD Pad Layout
Current Derating Diagram
1.5
600
500
400
300
1.8
4.6
Current derating as a function of
the maximum forward current of
IRED. Maximum duty cycle: 25%.
200
2
100
0
6
15179
–40 –20
0
20 40 60 80 100 120 140
14875
Temperature ( °C )
Figure 2. Pad Layout
Figure 3. Shows the current derating of the emitter chip
as a function of ambient temperature and duty cycle, see
absolute maximum ratings. This is for information only. The
TFDU4201 has an internal current control. Therefore, most
of this curve is not relevant for this device because the
higher currents are not intended to be used.
Document Number 82530
Rev. A1.4, 29-Jan-01
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5 (10)
TFDU4201A
Vishay Telefunken
TFDU4201A–(Mechanical Dimensions)
16523
www.vishay.com
6 (10)
Document Number 82530
Rev. A1.4, 29-Jan-01
TFDU4201A
Vishay Telefunken
15181
Document Number 82530
Rev. A1.4, 29-Jan-01
www.vishay.com
7 (10)
TFDU4201A
Vishay Telefunken
Appendix
Application Hints
Shut down
The TFDU4201 does not need any external
components when operated at a “clean“ power supply.
In a more noisy ambient it is recommended to add a
capacitor and a resistor for noise suppression. A
combination of a tantalum with a ceramics capacitor
will be most efficient.
To shut down the TFDU4201 into a standby mode the
SD pin has to be set active. For minimizing the
shutdowncurrentitisrecommendedtousealogichigh
level of >0.9 x V
CC
Latency
The receiver is in specified conditions after the defined
latency. In a UART related application after that time
(typically 50 µs) the receiver buffer of the UART must
be cleared. Therefore the transceiver has to wait at
least the specified latency after receiving the last bit
before starting the transmission to be sure that the
corresponding receiver is in a defined state.
Recommended Circuit Diagram
TFDU4201A
R1
C1
V
CC
4
V
CC
GND
Rxd
1, 2, 5, 6 GND
3
7
8
Rxd
Txd
SD
Txd
SD
Table 1. Recommended Application Circuit Components *)
Component
Recommended Value
Vishay Part Number
293D 475X9 016B 2T
C1
R1
4.7 F
max
5
*)
This is a recommendation for a combination to start with to exclude power supply effects.
Optimum, from a costs point of view, to work without both.
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8 (10)
Document Number 82530
Rev. A1.4, 29-Jan-01
TFDU4201A
Vishay Telefunken
Revision History:
A1.2, 07/04/1999: New edition
A1.2, 08/07/1999: Correction of typos: 2.4 V instead of 2.7 V in the full context, and missing measurement
conditions added.
A1.3, 13/10/2000: First public release
A1.4, 29/01/2001: Typos corrected, storage temperature increased, IRED peak current increased, minimum
detection threshold improved, latency increased, output radiation intensity, improved.
Document Number 82530
Rev. A1.4, 29-Jan-01
www.vishay.com
9 (10)
TFDU4201A
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
www.vishay.com
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Document Number 82530
Rev. A1.4, 29-Jan-01
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