View TFDU4300-TT3_1324311.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

VISHAY
TFDU4300
Vishay Semiconductors
Infrared Transceiver Module (SIR, 115.2 kbit/s) for IrDA(R) applications
Description
The TFDU4300 is a low profile (2.5 mm) infrared transceiver module with independent logic reference voltage (Vlogic) for low voltage IO interfacing. It is compliant to the latest IrDA physical layer standard for fast infrared data communication, supporting IrDA speeds up to 115.2 kbit/s (SIR) and carrier based remote control. The transceiver module consists of a PIN photodiode, an infrared emitter (IRED), and a low-power control IC to provide a total front-end solution in a single package. This device covers an
18065
extended IrDA low power range of close to 1 m. With an external current control resistor the current can be adjusted for shorter ranges. This Vishay SIR transceiver is built in a new smaller package using the experiences of the lead frame BabyFace technology. The Rxd output pulse width is independent of the optical input pulse width and stays always at a fixed pulse width thus making the device optimum for standard Endecs. TFDU4300 has a tri-state output and is floating in shut-down mode with a weak pull-up.
* Low Profile (Universal) Package Capable of Surface Mount Soldering to Side and Top View Orientation * Directly Interfaces with Various Super I/O and Controller Devices as e.g. TOIM4232 * Tri-state-Receiver Output, floating in shut down with a weak pull-up * Compliant with IrDA Background Light Specification * EMI Immunity in GSM Bands > 300 V/m verified
Features
* Compliant to the latest IrDA physical layer specification (9.6 kbit/s to 115.2 kbit/s) and TV Remote Control, bi-directional operation included. * Operates from 2.4 V to 5.5 V within specification over full temperature range from - 30 C to + 85 C * Logic voltage 1.5 V to 5.5 V is independent of IRED driver and analog supply voltage * Split power supply, transmitter and receiver can be operated from two power supplies with relaxed requirements saving costs, US Patent No. 6,157,476 * Extended IrDA Low Power Range to about 70 cm * Typical Remote Control Range 12 m * Low Power Consumption (< 0.12 mA Supply Current) * Power Shutdown Mode (< 5 A Shutdown Current in Full Temperature Range, up to 85 C) * Surface Mount Package, low profile (2.5 mm) - (L 8.5 mm x H 2.5 mm x W 2.9 mm) * High Efficiency Emitter
Document Number 82614 Rev. 1.4, 26-Jan-04
Applications
* Ideal for Battery Operated Applications * Telecommunication Products (Cellular Phones, Pagers) * Digital Still and Video Cameras * Printers, Fax Machines, Photocopiers, Screen * Projectors * Medical and Industrial Data Collection * Diagnostic Systems * Notebook Computers, Desktop PCs, Palmtop Computers (Win CE, Palm PC), PDAs * Internet TV Boxes, Video Conferencing Systems * External Infrared Adapters (Dongles) * Data Loggers * GPS * Kiosks, POS, Point and Pay Devices including IrFM - Applications
www.vishay.com 1
TFDU4300
Vishay Semiconductors Parts Table
Part TFDU4300-TR1 TFDU4300-TR3 TFDU4300-TT1 TFDU4300-TT3 Description Oriented in carrier tape for side view surface mounting Oriented in carrier tape for side view surface mounting Oriented in carrier tape for top view surface mounting Oriented in carrier tape for top view surface mounting 750 pcs 2500 pcs 750 pcs 2500 pcs
VISHAY
Qty / Reel
Functional Block Diagram
Vlogic
Vcc1 Push-Pull Driver
Amplifier
Comparator
Rxd Vcc2
SD Txd
Logic &
Control
Controlled Driver
RED C GND
18282
Pin Description
Pin Number 1 Function VCC2 IRED Anode Description Connect IRED anode directly to the power supply (VCC2). IRED current can be decreased by adding a resistor in series between the power supply and IRED anode. A separate unregulated power supply can be used at this pin. IRED Cathode, internally connected to the driver transistor This Schmitt-Trigger input is used to transmit serial data when SD is low. An on-chip protection circuit disables the LED driver if the Txd pin is asserted for longer than 300 s. The input threshold voltage adapts to and follows the logic voltage swing defined by the applied Vlogic voltage. Received Data Output, push-pull CMOS driver output capable of driving standard CMOS or TTL loads. During transmission the Rxd output is inactive. No external pull-up or pull-down resistor is required. Floating with a weak pull-up of 500 k (typ.) in shutdown mode. The voltage swing is defined by the applied Vlogic voltage Shutdown. The input threshold voltage adapts to and follows the logic voltage swing defined by the applied Vlogic voltage. Supply Voltage Vlogic defines the logic voltage level of the I/O ports to adap the logic voltage swing to the IR controller. The Rxd output range is from 0 V to Vlogic, for optimum noise suppression the inputs- logic decision level is 0.5 x Vlogic Ground I I HIGH I/O Active
2 3
IRED Cathode Txd
4
Rxd
O
LOW
5 6 7
SD VCC1 Vlogic
I
HIGH
8
GND
www.vishay.com 2
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
Pinout
TFDU4300 weight 75 mg
TFDU4300
Vishay Semiconductors
Definitions:
In the Vishay transceiver data sheets the following nomenclature is used for defining the IrDA operating modes: SIR: 2.4 kbit/s to 115.2 kbit/s, equivalent to the basic serial infrared standard with the physical layer version IrPhy 1.0 MIR: 576 kbit/s to 1152 kbit/s FIR: 4 Mbit/s VFIR: 16 Mbit/s MIR and FIR were implemented with IrPhy 1.1, followed by IrPhy 1.2, adding the SIR Low Power Standard. IrPhy 1.3 extended the Low Power Option to MIR and FIR and VFIR was added with IrPhy 1.4.A new version of the standard in any case obsoletes the former
1 2 3 IRED A IRED C Txd 18101
5 6 4 8 7 Rxd SD Vcc Vlog GND
version. With introducing the updated versions the old versions are obsolete. Therefore the only valid IrDA standard is the actual version IrPhy 1.4 (in Oct. 2002).
Absolute Maximum Ratings
Reference point Ground (pin 8) unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameter Supply voltage range, transceiver Supply voltage range, transmitter Supply voltage range, Vlogic Rxd output voltage Voltage at all inputs Input current Output sinking current Power dissipation Junction temperature Ambient temperature range (operating) Storage temperature range Soldering temperature Average output current, pin 1 Repetitive pulsed output current, pin 1 to pin 2 t < 90 s, ton < 20 % see recommended solder profile IIRED(DC) IIRED(RP) see derating curve PD TJ Tamb Tstg - 30 - 40 Test Conditions - 0.3 V < VCC2 < 6 V - 0.5 V < Vlogic < 6 V - 0.5 V < VCC1 < 6 V - 0.5 V < Vlogic < 6 V - 0.5 V < VCC1 < 6 V - 0.3 V < VCC2 < 6 V - 0.5 V < VCC1 < 6 V - 0.3 V < Vlogic < 6 V Note: Vin VCC1 is allowed for all pins, except IRED anode pin Symbol VCC1 VCC2 Vlogic VRxd VIN Min - 0.5 - 0.5 - 0.5 - 0.5 - 0.5 Typ. Max + 6.0 + 6.0 + 6.0 Vlogic + 0.5 + 6.0 10 25 250 125 + 85 + 100 240 125 600 Unit V V V V V mA mA mW C C C C mA mA
Document Number 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 3
TFDU4300
Vishay Semiconductors Eye safety information
Parameter Virtual source size Maximum intensity for class 1 Test Conditions Method: (1-1/e) encircled energy IEC60825-1 or EN60825-1, edition Jan. 2001, operating below the absolute maximum ratings Symbol d Ie Min 1.3 Typ. 1.8
*)
VISHAY
Max
Unit mm mW/sr
(500)
**)
*)
Due to the internal limitation measures the device is a "class 1" device under all conditions. IrDA specifies the max. intensity with 500 mW/sr.
**)
www.vishay.com 4
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
Electrical Characteristics Transceiver
Tested @ Tamb = 25 C, VCC1 = VCC2 = 2.7 V to 5.5 V unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameter Supply voltage Test Conditions Remark: For 2.4 V < VCC1 < 2.6 V @ Tamb < - 25 C a minor reduction of the receiver sensitivity may occur SD = Low, Ee = 1 klx*), Tamb = - 25 C to + 85 C, VCC1 = VCC2 = 2.7 V to 5.5 V SD = Low, Ee = 1 klx*), Tamb = 25 C, VCC1 = VCC2 = 2.7 V to 5.5 V Idle supply current @ Vlogic (receive mode, no signal) Average dynamic supply current, transmitting Standby supply current SD = Low, Ee = 1 klx*), Vlog, pin 7, no signal, no load @ Rxd IIRED = 300 mA, 20 % Duty Cycle SD = High, T = 25 C, Ee = 0 klx SD = High, T = 70 C SD = High, T = 85 C Standby supply current, Vlogic Operating temperature range Output voltage low, Rxd Output voltage high, Rxd Rxd to VCC1 impedance Input voltage low (Txd, SD) Input voltage high (Txd, SD) CMOS level
**)
TFDU4300
Vishay Semiconductors
Symbol VCC1
Min 2.4
Typ.
Max 5.5
Unit V
Idle supply current @ VCC1 (receive mode, no signal)
ICC1
90
130
A
ICC1
75
A
Ilog ICC ISD ISD ISD Ilog TA - 30 - 0.5 0.8 x Vlogic 0.9 x Vlogic 400 - 0.5 Vlogic - 0.5 -2 500 VOL VOH VOH RRxd VIL VIH IICH IIRTx IIRTx CIN -1 0
1 65 0.1 2 3 1 + 85 0.15 x Vlogic Vlogic + 0.5 Vlogic + 0.5 600 0.5 6 +2 + 150 1 5
A mA A A A A C V V V k V V A A A pF
no signal, no load CLoad = 15 pF IOH = - 500 A IOH = - 250 A, CLoad = 15 pF
Input leakage current (Txd, SD) VIN = 0.9 x Vlogic Controlled pull down current SD, Txd = "0" to "1", VIN < 0.15 Vlogic SD, Txd = "0" to "1", VIN > 0.7 Vlogic Input capacitance (Txd, SD)
*)
Standard illuminant A
To provide an improved immunity with increasing Vlogic the typical threshold level is increasing with Vlogic and set to 0.5 x Vlogic. It is recommended to use the specified min/max values to avoid increased operating current.
**)
Document Number 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 5
TFDU4300
Vishay Semiconductors Optoelectronic Characteristics Receiver
Tested @ Tamb = 25 C, VCC1 = VCC2 = 2.7 V to 5.5 V unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameter Minimum detection threshold irradiance, SIR Mode Maximum detection threshold irradiance Test Conditions 9.6 kbit/s to 115.2 kbit/s = 850 nm - 900 nm = 0 , 15 = 850 nm - 900 nm Symbol Ee Min Typ. 40 (4) 5 (500) 4 (0.4) Max 80 (8)
VISHAY
Unit mW/m2 (W/cm2) kW/m2 (mW/cm2) mW/m2 (W/cm2)
Ee Ee
Receiver input irradiance for low = 850 nm - 900 nm tr, tf < 40 ns, signal suppression*) tpo = 1.6 s @ f = 115 kHz, No Rxd signal no output signal allowed Rise time of output signal Fall time of output signal Stochastic jitter, leading edge Standby /Shutdown delay, receiver startup time Latency
*)
10 % to 90 %, CL = 15 pF 90 % to 10 %, CL = 15 pF
2
tr(Rxd) tf(Rxd) tPW
10 10 1.65 2.0
100 100 3.0 250 150
ns ns s ns s s
Rxd pulse width of output signal input pulse length > 1.2 s input irradiance = 100 mW/m , 115.2 kbit/s after shutdown active or power-on
tL
100
150**)
Equivalent to IrDA Background Light and Electromagnetic Field Test: Fluorescent Lighting Immunity Compliment to IrDA(R) SIR
**)
www.vishay.com 6
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
Transmitter
Tested @ Tamb = 25 C, VCC1 = VCC2 = 2.7 V to 5.5 V unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameter IRED operating current limitation Test Conditions No external resistor for current limitation*) Vf IIRED Ie Ie 1.4 -1 30 65 1.8 Symbol ID Min 250 Typ. 300
TFDU4300
Vishay Semiconductors
Max 350 1.9 1
Unit mA V A mW/sr
Forward voltage of built-in IRED If = 300 mA Output leakage IRED current Txd = 0 V, 0 < VCC1 < 5.5 V Output radiant intensity = 0 , 15 Txd = High, SD = Low VCC1 = 5.0 V, = 0 , 15 Txd = Low or SD = High (Receiver is inactive as long as SD = High) Output radiant intensity, angle of half intensity Peak - emission wavelength**) Spectral bandwidth Optical rise time, fall time Optical output pulse duration input pulse width 1.63 s, 115.2 kbit/s input pulse width tTxd < 20 s input pulse width tTxd 20 s Optical overshoot
*)
0.04
mW/sr
p tropt, tfopt topt topt topt 10 1.6 tTxd 20 880
24 900 45 100 1.63 1.8 tTxd + 0.15 300 25
nm nm ns s s s %
Using an external current limiting resistor is allowed and recommended to reduce IRED intensity and operating current when current reduction is intended to operate at the IrDA low power conditions. E.g. for VCC2 = 3.3 V a current limiting resistor of RS = 56 will allow a power minimized operation at IrDA low power conditions.
**) Note: Due to this wavelength restriction compared to the IrDA spec of 850 nm to 900 nm the transmitter is able to operate as source for the standard Remote Control applications with codes as e.g. Phillips RC5/RC6(R) or RECS 80.
Document Number 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 7
TFDU4300
Vishay Semiconductors Recommended Circuit Diagram
Operated with a clean low impedance power supply the TFDU4300 needs no additional external components. However, depending on the entire system design and board layout, additional components may be required (see figure 1).
VISHAY
In addition, when connecting the described circuit to the power supply, low impedance wiring should be used. When extended wiring is used the inductance of the power supply can cause dynamically a voltage drop at VCC2. Often some power supplies are not apply to follow the fast current rise time. In that case another 4.7 F (type, see table under C1) at VCC2 will be helpful. Under extreme EMI conditions as placing an RFtransmitter antenna on top of the transceiver, we recommend to protect all inputs by a low-pass filter, as a minimum a 12 pF capacitor, especially at the Rxd port. The transceiver itself withstands EMI at GSM frequencies above 300 V/m. When interference is observed, it is picked up by the wiring to the inputs. It is verified by DPI (direct power injection) measurements that as long as the interfering RF - voltage is below the logic threshold levels of the inputs and equivalent levels at the outputs no interference is expected. Figure 2 and figure 3 show examples for circuit diagrams to work with low voltage logic and using the transceiver when VCC1 = Vlogic, just connecting the responsible pins to each other.
V CC 2 V CC1 C1 GND
Mode
R1 R2 C2
IRED Anode V cc Ground
Vlogic
SD Txd Rxd
SD Txd Rxd
IRED Cathode
18096
Figure 1. Recommended Application Circuit
Recommended Application Circuit
The capacitor C1 is buffering the supply voltage and eliminates the inductance of the power supply line. This one should be a Tantalum or other fast capacitor to guarantee the fast rise time of the IRED current. The resistor R1 is the current limiting resistor, which may be used to reduce the operating current to levels below the specified controlled values for saving battery power. Vishay's transceivers integrate a sensitive receiver and a built-in power driver. The combination of both needs a careful circuit board layout. The use of thin, long, resistive and inductive wiring should be avoided. The inputs (Txd, SD) and the output Rxd should be directly connected (DC - coupled) to the I/O circuit. The capacitor C2 combined with the resistor R2 is the low pass filter for smoothing the supply voltage. R2, C1 and C2 are optional and dependent on the quality of the supply voltages VCC1 and injected noise. An unstable power supply with dropping voltage during transmission may reduce the sensitivity (and transmission range) of the transceiver. The placement of these parts is critical. It is strongly recommended to position C2 as close as possible to the transceiver power supply pins. An Tantalum capacitor should be used for C1 while a ceramic capacitor is used for C2.
www.vishay.com 8
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
TFDU4300
Vishay Semiconductors
VCC = 3.3 V VDD = 1.8 V
Block Diagram of Transceiver with a Separate Vlogic Power Supply (I/O voltage follows VDD voltage swing)
IR Controller Vdd TFDU4300 Vcc2 IREDA(1) IREDC (2) IRTX IRRX IRMODE
R1 47
TxD (3) RxD (4) SD (5) Vcc1 (6) Vlogic (7)
GND
18454
C1
C3
C2
C4
GND (8)
Figure 2.
VCC = 3.3 V
Block Diagram of Transceiver with a Common Power Supply for VCC and V logic (I/O voltage follows VCC voltage swing)
IR Controller Vdd TFDU4300 Vcc2 IREDA(1) IREDC (2) IRTX IRRX IRMODE
R1 47 C4
TxD (3) RxD (4) SD (5) Vcc1 (6) Vlogic (7)
C3 C2
GND
18455
GND (8)
C1
Figure 3.
One should keep in mind that basic RF - design rules for circuit design should be taken into account. Especially longer signal lines should not be used without
termination. See e.g. "The Art of Electronics" Paul Horowitz, Winfield Hill, 1989, Cambridge University Press, ISBN: 0521370957.
Table 1. Recommended Application Circuit Components
Component C1, C3 C2, C4 R1 R2 Recommended Value 4.7 F, 16 V 0.1 F, Ceramic depends on current to be adjusted 47 , 0.125 W CRCW-1206-47R0-F-RT1 Vishay Part Number 293D 475X9 016B VJ 1206 Y 104 J XXMT
I/O and Software
In the description, already different I/Os are mentioned. Different combinations are tested and the function verified with the special drivers available from the I/O suppliers. In special cases refer to the
Document Number 82614 Rev. 1.4, 26-Jan-04
I/O manual, the Vishay application notes, or contact directly Vishay Sales, Marketing or Application. For operating at RS232 ports the ENDEC TOIM4232 is recommended.
www.vishay.com 9
TFDU4300
Vishay Semiconductors
VISHAY
Truth table
Inputs SD high > 1 ms low low low Txd x high high > 50 s low Optical input Irradiance mW/m x x x <4
2
Outputs Rxd weakly pulled (500 k) to VCC1 high inactive high inactive high inactive Transmitter 0 Ie 0 0
Remark Operation Shutdown Transmitting Protection is active Ignoring low signals below the IrDA defined threshold for noise immunity Response to an IrDA compliant optical input signal
low
low
> Min. Detection Threshold Irradiance < Max. Detection Threshold Irradiance > Max. Detection Threshold Irradiance
low (active)
0
low
low
undefined
0
Overload conditions can cause unexpected outputs
Recommended Solder Profile
Current Derating Diagram
240 220 200 180
Temperature ( C )
10 s max. @ 230C 2C - 4C/s
Ambient Temperature ( C)
90 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
160 140 120 100 80 60 40 20 0 0 50 100 150 200 250 300 350 2C - 4C/s 120 s - 180 s 90 s max
14874
18097
Operating Voltage [V] @ duty cycle 20%
Time ( s )
Figure 4. Recommended Solder Profile
Figure 5. Temperature Derating Diagram
www.vishay.com 10
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
Package Dimensions in mm
TFDU4300
Vishay Semiconductors
18100
Document Number 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 11
TFDU4300
Vishay Semiconductors Reel Dimensions
VISHAY
W1
Reel Hub
W2
14017
Tape Width mm 16 16
A max. mm 180 330
N mm 60 50
W1 min. mm 16.4 16.4
W2 max. mm 22.4 22.4
W3 min. mm 15.9 15.9
W3 max. mm 19.4 19.4
www.vishay.com 12
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
Tape Dimensions in mm
TFDU4300
Vishay Semiconductors
18306
Document Number 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 13
TFDU4300
Vishay Semiconductors
VISHAY
18307
www.vishay.com 14
Document Number 82614 Rev. 1.4, 26-Jan-04
VISHAY
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.
TFDU4300
Vishay Semiconductors
2. Regularly and continuously improve the performance of our products, processes, distribution and operatingsystems 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 Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors 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 82614 Rev. 1.4, 26-Jan-04
www.vishay.com 15

▲Up To Search▲

Price & Availability of TFDU4300-TT3

	To Download TFDU4300-TT3 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .