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TFDU6300-TR1

P1-P3P4-P6P7-P9P10-P12
Not for New Designs
TFDU6300
www.vishay.com
Vishay Semiconductors
Rev. 2.2, 06-Sep-13
4
Document Number: 84763
For technical questions, contact: irdasupportAM@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Notes
•T
amb
= 25 °C, V
CC1
= V
CC2
= 2.4 V to 3.6 V unless otherwise noted.
Typical values are for design aid only, not guaranteed nor subject to production testing.
(1)
The typical threshold level is 0.5 x V
CC1
(V
CC1
= 3 V) . It is recommended to use the specified min./max. values to avoid increased operating
current.
TRANSCEIVER
Input voltage high (TXD, SD) CMOS level
(1)
V
IH
V
CC
- 0.3 6 V
Input leakage current (TXD, SD) V
IN
= 0.9 x V
CC1
I
ICH
- 1 + 1 μA
Input capacitance, TXD, SD C
I
5pF
Output voltage low
I
OL
= 500 μA
V
OL
0.4 V
C
load
= 15 pF
Output voltage high
I
OH
= - 250 μA
V
OH
0.9 x V
CC1
V
C
load
= 15 pF
Output RXD current limitation
high state
low state
Short to ground
Short to V
CC1
20
20
mA
mA
SD shutdown pulse duration Activating shutdown 30 μs
RXD to V
CC1
impedance R
RXD
400 500 600 k
SD mode programming pulse
duration
All modes t
SDPW
200 ns
OPTOELECTRONIC CHARACTERISTICS
PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
RECEIVER
Minimum irradiance E
e
(1)
in
angular range
(2)
9.6 kbit/s to 115.2 kbit/s
= 850 nm to 900 nm,
V
CC
= 2.4 V
E
e
50
(5)
80
(8)
mW/m
2
(μW/cm
2
)
Minimum irradiance E
e
in angular
range, MIR mode
1.152 Mbit/s
= 850 nm to 900 nm,
V
CC
= 2.4 V
E
e
100
(10)
mW/m
2
(μW/cm
2
)
Minimum irradiance E
e
inangular
range, FIR mode
4 Mbit/s
= 850 nm to 900 nm,
V
CC
= 2.4 V
E
e
130
(13)
200
(20)
mW/m
2
(μW/cm
2
)
Maximum irradiance E
e
in angular
range
(3)
= 850 nm to 900 nm E
e
5
(500)
kW/m
2
(mW/cm
2
)
Rise time of output signal 10 % to 90 %, C
L
= 15 pF t
r (RXD)
10 40 ns
Fall time of output signal 90 % to 10 %, C
L
= 15 pF t
f (RXD)
10 40 ns
RXD pulse width of output signal,
50 %, SIR mode
Input pulse length
1.4 μs < P
Wopt
< 25 μs
t
PW
1.6 2.2 3 μs
RXD pulse width of output signal,
50 %, MIR mode
Input pulse length
P
Wopt
= 217 ns, 1.152 Mbit/s
t
PW
105 250 275 ns
RXD pulse width of output signal,
50 %, FIR mode
Input pulse length
P
Wopt
= 125 ns, 4 Mbit/s
t
PW
105 125 145 ns
RXD pulse width of output signal,
50 %, FIR mode
Input pulse length
P
Wopt
= 250 ns, 4 Mbit/s
t
PW
225 250 275 ns
Stochastic jitter, leading edge
Input irradiance = 100 mW/m
2
,
4 Mbit/s
1.152 Mbit/s
115.2 kbit/s
25
80
350
ns
ns
ns
Receiver start up time
After completion of shutdown
programming sequence
power on delay
250 μs
Latency t
L
40 100 μs
ELECTRICAL CHARACTERISTICS
PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Not for New Designs
TFDU6300
www.vishay.com
Vishay Semiconductors
Rev. 2.2, 06-Sep-13
5
Document Number: 84763
For technical questions, contact: irdasupportAM@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Notes
•T
amb
= 25 °C, V
CC
= 2.4 V to 3.6 V unless otherwise noted. Typical values are for design aid only, not guaranteed nor subject to production
testing. All timing data measured with 4 Mbit/s are measured using the IrDA FIR transmission header. The data given here are valid 5 μs after
starting the preamble.
(1)
IrDA low power specification is 90 mW/m
2
. Specification takes into account a window loss of 10 %.
(2)
IrDA sensitivity definition (equivalent to threshold irradiance): minimum irradiance E
e
in angular range, power per unit area. The receiver must
meet the BER specification while the source is operating at the minimum intensity in angular range into the minimum half-angular range at
the maximum link length.
(3)
Maximum irradiance E
e
in angular range, power per unit area. The optical delivered to the detector by a source operating at the maximum
intensity in angular range at minimum link length must not cause receiver overdrive distortion and possible related link errors. If placed at
the active output interface reference plane of the transmitter, the receiver must meet its bit error ratio (BER) specification. For more
definitions see the document “Symbols and Terminology” on the Vishay website
(4)
Maximum value is given by eye safety class 1, IEC 60825-1, simplified method.
(5)
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. Philips RC5/RC6
®
or RECS 80. When operated under IrDA full range conditions
(125 mW/sr) the RC range to be covered is in the range from 8 m to 12 m, provided that state of the art remote control receivers are used.
TRANSMITTER
IRED operating current, switched
current limiter
Note: no external resistor current
limiting resistor is needed
I
D
330 440 600 mA
Output pulse width limitation
Input pulse width t < 20 μs t
PW
tμs
Input pulse width 20 μs < t < 150 μs t
PW
18 150 μs
Input pulse width t 150 μs t
PW_lim
150 μs
Output leakage IRED current I
IRED
- 1 1 μA
Output radiant intensity,
see figure 3,
recommended appl. circuit
V
CC
= V
IRED
= 3.3 V, = 0°
TXD = high, SD = low
I
e
65 180 468
(4)
mW/sr
Output radiant intensity,
see figure 3,
recommended appl. circuit
V
CC
= V
IRED
= 3.3 V, = 0°, 15°
TXD = high, SD = low
I
e
50 125 468
(4)
mW/sr
Output radiant intensity
V
CC1
= 3.3 V, = 0°, 15°
TXD = low or SD = high (receiver is
inactive as long as SD = high)
I
e
0.04 mW/sr
Output radiant intensity, angle of
half intensity
± 24 deg
Peak - emission wavelength
(5)
p
875 886 900 nm
Spectral bandwidth  45 nm
Optical rise time,
optical fall time
t
ropt
,
t
fopt
10 40 ns
Optical output pulse duration
Input pulse width 217 ns,
1.152 Mbit/s
t
opt
207 217 227 ns
Optical output pulse duration
Input pulse width 125 ns,
4 Mbit/s
t
opt
117 125 133 ns
Optical output pulse duration
Input pulse width 250 ns,
4 Mbit/s
t
opt
242 250 258 ns
Optical overshoot 25 %
OPTOELECTRONIC CHARACTERISTICS
PARAMETER TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Not for New Designs
TFDU6300
www.vishay.com
Vishay Semiconductors
Rev. 2.2, 06-Sep-13
6
Document Number: 84763
For technical questions, contact: irdasupportAM@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
RECOMMENDED CIRCUIT DIAGRAM
Operated at a clean low impedance power supply the
TFDU6300 needs no additional external components.
However, depending on the entire system design and board
layout, additional components may be required
(see figure 3).
Fig. 3 - 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 only
necessary for high operating voltages and elevated
temperatures.
Vishay 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 (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 V
CCx
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. A tantalum capacitor should
be used for C1 while a ceramic capacitor is used for C2.
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 V
CC2
. Often
some power supplies are not able to follow the fast current
rise time. In that case another 4.7 μF (type, see table under
C1) at V
CC2
will be helpful.
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.
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 I/O manual, the Vishay application
notes, or contact directly Vishay Sales, Marketing or
Application.
MODE SWITCHING
The TFDU6300 is in the SIR mode after power on as a
default mode, therefore the FIR data transfer rate has to be
set by a programming sequence using the TXD and SD
inputs as described below. The low frequency mode covers
speeds up to 115.2 kbit/s. Signals with higher data rates
should be detected in the high frequency mode. Lower
frequency data can also be received in the high frequency
mode but with reduced sensitivity. To switch the
transceivers from low frequency mode to the high frequency
mode and vice versa, the programming sequences
described below are required.
SETTING TO THE HIGH BANDWIDTH MODE
(0.576 Mbit/s to 4 Mbit/s)
1. Set SD input to logic “high”.
2. Set TXD input to logic “high”. Wait t
s
200 ns.
3. Set SD to logic “low” (this negative edge latches state of
TXD, which determines speed setting).
4. After waiting t
h
200 ns TXD can be set to logic “low”.
The hold time of TXD is limited by the maximum allowed
pulse length.
TXD is now enabled as normal TXD input for the high
bandwidth mode.
IRED Anode
V
CC
Ground
SD
TXD
RXD
IRED Cathode
V
CC2
V
CC1
GND
SD
TXD
RXD
R1
R2
C1
C2
19307
TABLE 1 - RECOMMENDED APPLICATION CIRCUIT COMPONENTS
COMPONENT RECOMMENDED VALUE VISHAY PART NUMBER
C1 4.7 μF, 16 V 293D 475X9 016B
C2 0.1 μF, ceramic VJ 1206 Y 104 J XXMT
R1 No resistor necessary, the internal controller is able to control the current
R2 10 , 0.125 W CRCW-1206-10R0-F-RT1
P1-P3P4-P6P7-P9P10-P12

TFDU6300-TR1

Mfr. #:
Buy TFDU6300-TR1
Manufacturer:
Vishay Semiconductors
Description:
Infrared Transceivers FIR 4Mbit/s 2.4-3.6V Op Voltage
Lifecycle:
New from this manufacturer.
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