View TFDU4201_62651.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TFDU4203
Vishay Semiconductors
Integrated Low Profile Transceiver Module for Telecom Applications - IrDA Standard
Description
The miniaturized TFDU4203 is an ideal transceiver for applications in telecommunications like mobile phones and pagers. The device is mechanically designed for lowest profile with a height of only 2.8 mm. The infrared transceiver is compatible to the IrDA(R) IrPHY specification up to a data rate of 115 kbit/s. The transceiver can be operated without external current limiting resistor to achieve full SIR compliance (range > 1 m in full 15 cone).
Features
D Package Dimension: L 7.1 mm x W 4.7 mm x H 2.8 mm D Compatible to the latest IrDA IrPHY Standard D CIR Remote Control Operation: Typical Transmission Range 8 m Using Standard RC-Receivers. Receives RC-Commands with Typical Specified Sensitivity. D SMD Side View D Lowest Power Consumption 65 A, Receive Mode, 0.01 A Shutdown Current D Built-in Current Limitation D Output Intensity Adjustable beyond IrDA Low Power D Supply Voltage Range (2.4 V to 5.5 V) D Operational down to 2.0 V D Fewest External Components D Eye Safety: Double Safety Measures: Limited Optical Output Pulse Duration Limited Optical Output Intensity IEC60825-1, 2001: Class 1 D Tri-State Output (Rxd) D High EMI Immunity D SD Pin
Applications
Mobile Phones, Pagers, Personal Digital Assistants (PDA), Handheld Battery Operated Equipment
Package
TFDU4203 Face Side View weight: 0.10 g
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 1 (12)
TFDU4203
Vishay Semiconductors Face SIR Selector Guide
Part Number TFDU4201 Main Feature Low Power 20 cm/ 30 cm IrDA Standard SD pin Rxd Output in Txd Mode Optical Feedback**) (for e.g. self-test mode) IRED Drive Capability Internally current controlled, adjusted for Ie >4 mW/sr IrDA Compliance Low Power SIR, pairs of TFDU4201 operate typically over a range of > 70 cm on axis Power Supply One power supply only, due to the very low current consumption no need for split power supply Split power supply*) can be used when operated at higher IRED current levels
TFDU4202
Split Power Supply Increased Range 70 cm
Quiet**) necessary for some WinCE(R) applications, Rxd grounded when VCC= 0 V
TFDU4203
Similar to TFDU4201 with increased range 70 cm, SD pin
Quiet**) necessary for some WinCE(R) applications
TFDU4204
Similar to TFDU4202, Logic Input and Output Levels Adapted to 1.8 V Logic
Quiet**) necessary for some WinCE(R) applications, Rxd output is floating when supply voltage below 0.7 V
Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor Internally current controlled to cover extended range of 70 cm. Current level can be reduced by an external resistor
Low Power SIR as e.g. TFDU4201, pairs of TFDU4202 operate typically up to full IrDA SIR distance >1 m
Low Power SIR as e.g. TFDU4201, pairs of TFDU4203 operate typically up to full IrDA SIR distance >1 m
One power supply only
Low Power SIR as e.g. TFDU4201, pairs of TFDU4204 operate typically up to full IrDA SIR distance >1 m
Split power supply*) can be used when operated at higher IRED current levels
*)
Split power supply: The receiver circuit only is connected to a regulated power supply. The high IRED current can be supplied by a less controlled power line or directly from the battery. That feature saves power supply costs. TELEFUNKEN introdused this feature as the world first with the 4000 series Depending on the designs different applications need an optical feedback for test purposes or must be quiet (e.g. in Windows CE(R) applications).
**)
www.vishay.com 2 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors Ordering Information
Part Number TFDU4203-TR1 TFDU4203-TR3 Qty / Reel 750 2250 Description Orientated in carrier tape for side view mounting Orientated in carrier tape for side view mounting
Functional Block Diagram
Vcc
Tri-State-Driver Amplifier Comparator Rxd
Control & Logic Txd Control SD Controlled Driver
GND
Figure 1. Functional Block Diagram
Pin Description
Pin 1 2 3 4 5 6 7 8 Symbol IRED GND IRED GND Rxd VCC GND GND Txd SD Description IRED Cathode, Ground IRED Cathode, Ground Output, Received Data, Tri-state, Floating in Shutdown Mode (SD = High), Quiet during transmission Supply Voltage Ground Ground Input, Transmit Data Shutdown I/O Active
O
LOW
I I
HIGH HIGH
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 3 (12)
TFDU4203
Vishay Semiconductors Absolute Maximum Ratings
Reference Point Pin 8, unless otherwise noted. Parameter Test Conditions Supply Voltage Range Input Current Output Sink Current Power Dissipation Junction Temperature Ambient Temperature Range (Operating) Storage Temperature Range Soldering Temperature t = 20 s @215C Symbol VCC Min. Typ. -0.5 Max. 6 10 25 200 125 85 100 240 Unit Remarks V mA all pins mA mW C C C C
Ptot TJ Tamb Tstg
-25 -40 215
see Vishay Telefunken IrDA Design Guide <90 s, ton <20%
Average IRED Current Repetitive Pulsed IRED Current Transmitter Data Input Voltage Receiver Data Output Voltage Virtual source size (TFDU4203 only)
IIRED(DC) IIRED(RP) VTxd VRxd Method: (1-1/e) encircled energy d -0.5 -0.5 2
125 500 6 6
mA mA V V mm
Compatible to Class 1 operation of IEC 60825 or EN60825 with worst case IrDA SIR pulse pattern, 115.2 kbit/s
www.vishay.com 4 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors Electrical Characteristics
Tested for the following parameters (VCC = 2.4 V to 5.5 V, , unless otherwise stated) Parameter Transceiver Supported Data Rates Supply Voltage Range Supply Current Test Conditions Base band VCC VCC = 2.4 V to 5.5 V Ee = 0 VCC = 2.4 V to 5.5 V 10 klx sunlight IS IS Symbol Min. Typ. Max. 9.6 2.4 65 70 Unit Remarks
115.2 kbit/s 5.5 100 100 V A A Operational Down to 2.0 V Receive Mode, full Temperature Range Receive Mode or Transmit Mode, full Temperature Range, No signal Receive Mode, Nose to Nose operation Entire Temperature Range 20C SIR Standard
VCC = 2.7 V 115.2 kbit/s transmission Supply Current, Shutdown mode @VCCP VCC = 5.5 V IRED Peak Current Ie = 40 mW/sr, transmitting no external resistor VCCP = 2.7 V Transceiver "Power On" Settling Time
IS
1
mA A nA mA
ISshdown IStr
0.02
1 10 360
1
ms
Time from Switching on VCC to Established Specified Operation
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 5 (12)
TFDU4203
Vishay Semiconductors Optoelectronic Characteristics
Tested for the following parameters (VCC = 2.4 V to 5.5 V, -25C to 85C, unless otherwise stated) Parameter Receiver Minimum Detection Threshold Irradiance (Logic High Receiver Input Irradiance) Maximum Detection Threshold Irradiance Test Conditions || 15 VCC = 2.4 V to 5.5 V 2.0 V || 90 VCC = 5 V || 90 VCC = 3 V Symbol Ee, min Min. Typ 25 (2.5) 50 5000 (500) 15000 (1500) Max 50 (5) 100 Unit mW/m 2 W/cm 2 Remarks
Ee, max Ee, max Ee,max,low
3300 (330) 8000 (800)
Logic Low Receiver Input Irradiance Out ut Output Voltage Rxd Output Current Rxd VOL < 0.5 V Rise Time @Load: C = 15 pF, R = 2.2k Fall Time @Load: C = 15 pF, R = 2.2k Rxd Signal Electrical Output Pulse Width
Active Non Active
VOL VOH
0 VCC-0.5
mW/m 2 25C tested W/m 2 mW/cm 2 W/m 2 mW/cm 2 4 mW/m 2 (0.4) W/cm 2 0.5 V C = 15 pF V C = 15 pF 4 mA 70 70 20 ns ns s
tr tf 2.4 kbit/s, Input Pulse Width 1.41 s to 3/16 of bit Duration 115.2 kbit/s, Input Pulse Width 1.41 s to 3/16 of bit Duration Output Level = 0.5x VCC @ 40 mW/m2 Over a Period of 10 bit, 115.2 kbit/s Output Level = 0.5x VCC 40 mW/m2 tp
20 20 1.41
tp
1.41
4.5
s
Output Delay Time (Rxd), Leading Edge Optical Input to electrical output Jitter, Leading Edge of Output Signal Output Delay Time (Rxd), Trailing Edge, Optical Input to electrical output Power on time, SD recovery time Latency
tdl
1
2
s
tj tdt
400 6.5
ns s
0.1 tL 100
1 200
ms s
www.vishay.com 6 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors Optoelectronic Characteristics (continued)
Tested for the following parameters (VCC = 2.4 V to 5.5 V, -25C to 85C, unless otherwise stated) Parameter Transmitter Logic Low Shutdown Input Voltage *) Logic High Shutdown Input Voltage *) Logic Low Transmitter Input Voltage *) Logic High Transmitter Input Voltage *) Optical Output Radiant Intensity, || 15 Peak Emission Wavelength Spectral Emission Bandwidth Optical Rise/Falltime Test Conditions Symbol VIL(Txd) Min. -0.5 Typ Max. 0.15x VCC 6 0.81x VCC 6 Unit V V V V mW/ sr 900 40 200 nm nm ns s W/sr % s Voltage Range 2.7 V to 5.5 V *) Remarks
VIH(Txd) 0.8x VCC VIL(Txd) 0.5 VIH(Txd) 0.8x VCC Ie 45 p
IF1 = 320 mA, Internally Current Controlled **)
880
115.2 kHz Square Wave Signal (duty cycle 1:1) Optical Output Pulse Input Pulse Duration Duration 1.6 s Output Radiant Intensity Logic Low Level Overshoot, Optical Rising Edge Peak to Over a Period of 10 bits, Peak Jitter Independent of Information Content *) **)
1.5
1.6
1.7 0.04 25 0.2
tj
Recommended logic levels for minimum shutdown current. The CMOS decision level is 0.5 x VCC Add external resistor for VCC > 4 V to prevent thermal overload, see Fig. 3
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 7 (12)
TFDU4203
Vishay Semiconductors Recommended SMD Pad Layout
7 x 0.8
Ambient Temperature ( C)
Temperature Derating
90
0.5
85 80 75 70 65 60 55 50 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.3 1 0.8
Transceiver leads to be soldered symmetrically on pads Figure 2. Pad Layout
8
Operating Voltage [V] @ duty cycle 20%
Figure 3. shows the maximum operating temperature when the device is operated without external current limiting resistor. A power dissipating resistor of 2 is recommended from the cathode of the IRED to Ground for supply voltages above 4 V. In that case the device can be operated up to 85C, too.
Table 1. Truth table
Inputs SD high low low low low Txd x high high > 25 s low low Optical input Irradiance mW/ m2 x x x <4 > Min Detection Threshold Irradiance < Max Detection Threshold Irradiance > Max Detection Threshold Irradiance Rxd floating high high high low
Outputs Transmitter 0 Ie 0 0 0
low
low
x
0
www.vishay.com 8 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors TFDU4203-(Mechanical Dimensions)
14484
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 9 (12)
TFDU4203
Vishay Semiconductors Appendix
Application Hints
The TFDU4203 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 C1 (4.7 mF Tantalum) and a resistor R1 ( 3 ) for noise suppression. In addition the capacitor is needed to prevent a pulse distortion when the power supply is not able to generate the peak currents or inductive wiring is used. A combination of a tantalum with a ceramics capacitor will be efficient to attenuate both, RF and LF if RF noise is present. The value is dependent on the power supply quality. A good choice is between 4.7 mF and 10 mF.
Shut down
To shut down the TFDU4103 into a standby mode the SD pin has to be set active.
Latency
The receiver is in specified conditions after the defined latency. In a UART related application after that time (typically 50 s) 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. For more application circuits, see IrDC Design Guide and TOIM3...-series data.
Recommended Circuit Diagram
TFDU4203
SD GND Rxd Txd R1 Vcc C1 1, 2 IRED Cathode R2 4 VCC 8 SD
5, 6 GND 3 7 Rxd Txd
Table 1. Recommended Application Circuit Components *)
Component Recommended Value C1 4.7 mF, 16 V R1 5 W max *)
Vishay Part Number 293D 475X9 016B 2T
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.
www.vishay.com 10 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03
TFDU4203
Vishay Semiconductors Revision History:
A1.0, 13 /10/2000: First edition
Document Number 82542 Rev. A1.1, 13-Feb-03
www.vishay.com 11 (12)
TFDU4203
Vishay Semiconductors 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 12 (12)
Document Number 82542 Rev. A1.1, 13-Feb-03

▲Up To Search▲

Price & Availability of TFDU4201

	To Download TFDU4201 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .