VISHAY TFDU6102 Operation Manual
VISHAY
18102
Vishay Semiconductors
Fast Infrared Transceiver Module (FIR, 4 Mbit/s)
for 2.7 V to 5.5 V Operation
Description
The TFDU6102 is a low-power infrared transceiver
module compliant to the latest IrDA physical layer
standard for fast infrared data communication, supporting IrDA speeds up to 4.0 Mbit/s (FIR), and carrier
based remote control modes up to 2 MHz. Integrated
within the transceiver module are a PIN photodiode,
an infrared emitter (IRED), and a low-power CMOS
control IC to provide a total front-end solution in a single package.
Vishay FIR transceivers are available in different
package options, including this BabyFace package
(TFDU6102). 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 devices which perform the
modulation/ demodulation function, including
National Semiconductor’s PC87338, PC87108 and
PC87109, SMC’s FDC37C669, FDC37N769 and
CAM35C44, and Hitachi’s SH3. At a minimum, a VCC
bypass capacitor are the only external components
required implementing a complete solution.
TFDU6102 has a tri-state output and is floating in
shut-down mode with a weak pull-up.
Features
• Supply voltage 2.7 V to 5.5 V, Operating idle
current (receive mode) < 3 mA, Shutdown current
< 5 µA over full temperature range
• Surface Mount Package, top and side view,
9.7 mm x 4.7 mm x 4.0 mm
• Operating Temperature - 25 °C to 85 °C
• Storage Temperature - 40 °C to 100 °C
• Transmitter Wavelength typ. 886 nm, supporting
•IrDA
• Remote Control Range > 8 m, typ. 22 m
®
IrDA
and Remote Control
®
compliant, link distance > 1 m, ± 15 °, window losses are allowed to still be inside the IrDA
spec.
• ESD > 4000 V (HBM), Latchup > 200 mA
• EMI immunity > 550 V/m for GSM frequency and
other mobile telephone bands /
(700 MHz to 2000 MHz, no external shield)
• Split power supply, LED can be driven by a
separate power supply not loading the regulated
supply. U.S. Pat. No. 6,157,476
• Tri-state-Receiver Output, floating in shut down
with a weak pull-up
• Eye safety class 1 (IEC60825-1, ed. 2001), limited
LED on-time, LED current is controlled, no single
fault to be considered
Applications
• Notebook Computers, Desktop PCs, Palmtop
Computers (Win CE, Palm PC), PDAs
• Digital Still and Video Cameras
• Printers, Fax Machines, Photocopiers,
Screen Projectors
• Telecommunication Products
(Cellular Phones, Pagers)
• Internet TV Boxes, Video Conferencing Systems
®
• External Infrared Adapters (Dongles)
• Medical and Industrial Data Collection
TFDU6102
Document Number 82550
Rev. 1.3, 16-Oct-03
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1
TFDU6102
Vishay Semiconductors
Parts Table
Part Description Qty / Reel
TFDU6102-TR3 Oriented in carrier tape for side view surface mounting 1000 pcs
TFDU6102-TT3 Oriented in carrier tape for top view surface mounting 1000 pcs
Functional Block Diagram
Vcc1
Tri-State
Amplifier
Driver
Comparator
Rxd
Vcc2
VISHAY
18468
Pinout
TFDU6102
weight 200 mg
17087
Mode
SD
Txd
"U" Option BabyFace
(Universal)
IRED Detector
12345678
Logic
&
Control
GND
Controlled
Driver
IRED C
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
version.
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Document Number 82550
Rev. 1.3, 16-Oct-03
VISHAY
Pin Description
Pin Number
"U"
1 V
2 IRED
3 Txd This input is used to transmit serial data when SD is low. An on-chip
4 Rxd Received Data Output, push-pull CMOS driver output capable of driving a
5 SD Shutdown, also used for dynamic mode switching. Setting this pin active
6 V
7 Mode HIGH: High speed mode, MIR and FIR; LOW: Low speed mode, SIR only
7 Mode The mode pin can also be used to indicate the dynamically programmed
8 GND Ground
Function Description I/O Active
CC2
IRED Anode
Cathode
CC1
Connect IRED anode directly to V
external resistor might be necessary for reducing the internal power
An unregulated separate power supply can be used at this pin.
IRED cathode, internally connected to driver transistor
protection circuit disables the LED driver if the Txd pin is asserted for longer
than 80 µs. When used in conjunction with the SD pin, this pin is also used
to receiver speed mode.
standard CMOS or TTL load. No external pull-up or pull-down resistor is
required. Floating with a weak pull-up of 500 kΩ (typ.) in shutdown
places the module into shutdown mode. On the falling edge of this signal,
the state of the Txd pin is sampled and used to set receiver low bandwidth
(Txd = Low, SIR) or high bandwidth
(Txd = High, MIR and FIR) mode. Will be overwritten by the mode pin input,
which must float, when dynamic programming is used.
Supply Voltage
(see chapter "Mode Switching"). Must float, when dynamic programming is
mode. The maximum load is limited to 50 pF. High indicates FIR/MIR-, low
indicates SIR-mode
. For voltages higher than 3.6 V an
CC2
dissipation.
mode.
used.
TFDU6102
Vishay Semiconductors
I HIGH
O LOW
I HIGH
I
O
Document Number 82550
Rev. 1.3, 16-Oct-03
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TFDU6102
VISHAY
Vishay Semiconductors
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 Test Conditions Symbol Min Ty p. Max Unit
Supply voltage range,
transceiver
Supply voltage range,
transmitter
Input currents for all pins, except IRED anode
Output sinking current 25 mA
Power dissipation see derating curve, figure 5 P
Junction temperature T
Ambient temperature range
(operating)
Storage temperature range T
Soldering temperature see recommended solder profile
Average output current I
Repetitive pulse output current < 90 µs, ton < 20 % I
IRED anode voltage V
Voltage at all inputs and outputs Vin > V
Load at mode pin when used as
mode indicator
0 V < V
CC2
0 V < V
CC1
pin
(see figure 4)
is allowed V
CC1
< 6 V V
< 6 V V
IRED
IRED
CC1
CC2
D
J
T
amb
stg
(DC) 125 mA
(RP) 600 mA
IREDA
IN
- 0.5 + 6 V
- 0.5 + 6.5 V
10 mA
500 mW
125 °C
- 25 + 85 °C
- 25 + 85 °C
240 °C
- 0.5 + 6.5 V
5.5 V
50 pF
Eye safety information
Reference point Pin: GND unless otherwise noted.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameter Test Conditions Symbol Min Ty p. Max Unit
Virtual source size Method: (1 - 1/e) encircled
Maximum Intensity for Class 1 IEC60825-1 or
*)
Due to the internal limitation measures the device is a "class1" device
**)
IrDA specifies the max. intensity with 500 mW/sr
energy
EN60825-1,
edition Jan. 2001
d 2.5 2.8 mm
I
e
*)
(500)
mW/sr
**)
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Document Number 82550
Rev. 1.3, 16-Oct-03
VISHAY
Vishay Semiconductors
Electrical Characteristics
Transceiver
T
= 25 °C, VCC = 2.7 V to 5.5 V unless otherwise noted.
amb
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Parameter Test Conditions Symbol Min Ty p. Max Unit
Supply voltage V
Supply current (Idle)
Supply current (Idle)
1)
1)
SD = Low, Ee = 0 klx I
SD = Low, Ee = 1 klx
2)
Shutdown supply current SD = High, Mode = Floating
E
= 0 klx
e
SD = High, Mode = Floating
= 1 klx
e
2)
E
SD = High, T = 85 °C,
CC
CC
I
CC
I
SD
I
SD
I
SD
Mode = Floating, not ambient
light sensitive
Operating temperature range T
Output voltage low IOL = 1 mA, C
Output voltage high IOH = 500 µA, C
IOH = 250 µA, C
Output Rxd current limitation
Short to Ground 20 mA
= 15 pF V
load
= 15 pF V
load
= 15 pF V
load
A
OL
OH
OH
high state
Output Rxd current limitation
low state
Rxd to V
impedance SD = High R
CC1
Input voltage low
Short to V
CC1
V
Rxd
IL
(Txd, SD, Mode)
Input voltage high
(Txd, SD, Mode)
Input leakage current
CMOS level
TTL level, V
3)
= 4.5 V V
CC1
V
IH
IH
I
L
(Txd, SD)
Input leakage current
Mode
Input capacitance
I
ICH
C
I
(Txd, SD, Mode)
1)
Receive mode only.
In transmit mode, add additional 85 mA (typ) for IRED current. Add Rxd output current depending on Rxd load.
2)
Standard Illuminant A
3)
The typical threshold level is between 0.5 x V
(VCC = 3 V) and 0.4 x VCC (VCC = 5.5 V) . It is recommended to use the specified
CC2
min/ max values to avoid increased operating current.
2.7 5.5 V
2 3 mA
2 3 mA
- 25 + 85 °C
0.8 x V
CC
0.9 x V
CC
400 500 600 kΩ
- 0.5 0.5 V
VCC - 0.5 VCC + 0.5 V
2.4 V
- 10 + 10 µA
- 2 + 2 µA
TFDU6102
2.0 µA
2.5 µA
5 µA
0.4 V
V
V
20 mA
5 pF
Document Number 82550
Rev. 1.3, 16-Oct-03
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