TFDU6102F
Vishay Semiconductors
Fast Infrared Transceiver Module (FIR, 4 Mbit/s)
for 2.7 V to 5.25 V Operation
Description
The TFDU6102F transceiver is a low–power infrared
transceiver module compliant to the latest IrDA
standard for fast infrared data communication,
supporting IrDA speeds up to 4.0 Mbit/s (FIR),
HP-SIR, Sharp ASK and carrier based remote control
modes up to 2 MHz. Integrated within the transceiver
modules are a photo PIN diode, an infrared emitter
(IRED), and a low–power CMOS control IC to provide
a total front–end solution in a single package.
Vishay Telefunken’s FIR transceivers are available in
different package options, including this BabyFace
package (TFDU6102F), the standard setting, once
smallest FIR transceiver available on the market. 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 V
CC
bypass
capacitor are the only external components required
implementing a complete solution. TFDU6102F
identifies itself by setting the output active in shutdown
mode. This is the basic difference to TFDU6102F,
which is floaating in shutdown.
Features
D
Compliant to the IrDA standard
(Up to 4 Mbit/s),
HP–SIR
®
, Sharp ASK
®
and TV Remote Control
D
For 3.0 V and 5.0 V Applications
D
Operates from 2.7 V to 5.25 V within specification,
D
Low Power Consumption (< 3 mA Supply Current)
D
Power Shutdown Mode (< 5
mA
Shutdown Current
in Full Temperature Range)
D
Surface Mount Package
–
Universal (9.7
×
4.7
×
4.0 mm
3
)
D
Tri.state–Receiver Output, floating when in
shutdown mode: Use TFDU6102F–Version
D
For Push–Pull–Receiver Output,
grounded in shutdown mode for device
identification use TFDU6101
D
High Efficiency Emitter
D
BabyFace (Universal) Package Capable of
Surface Mount Soldering to Side and Top View
Orientation
D
Directly Interfaces with Various Super I/O and
Controller Devices
D
Built–In EMI Protection – No External Shielding
Necessary
D
Only One External Component Required
D
Backward Pin to Pin Compatible to all Vishay
Telefunken SIR and FIR Infrared Transceivers
D
Split power supply, transmitter and receiver can be
operated from two power supplies with relaxed
requirements saving costs
Applications
D
Notebook Computers, Desktop PCs,
Palmtop Computers (Win CE, Palm PC), PDAs
D
Digital Still and Video Cameras
D
Printers, Fax Machines, Photocopiers,
Screen Projectors
D
Telecommunication Products
(Cellular Phones, Pagers)
D
Internet TV Boxes, Video Conferencing Systems
D
External Infrared Adapters (Dongles)
D
Medical and Industrial Data Collection
Document Number 82551
Rev. A1.0, 01–Feb–02
www.vishay.com
1
TFDU6102F
Vishay Semiconductors
Pin Description
Pin Number
Function
Descri tion
Description
“U”
1
V
CC
2, IRED Anode IRED anode, to be externally connected to V
CC
2. For
higher voltages as 3.6 V an external resistor might be
necessary for reducing the internal power dissipation.
See derating curves.
This pin is allowed to be supplied from an uncontrolled
power supply separated from the controlled V
CC
1 supply
2
IRED Cathode
IRED cathode, internally connected to driver transistor
3
Txd
Transmit Data Input
4
Rxd
TFDU6101:
Received Data Output, push-pull CMOS driver output
capable of driving a standard CMOS or TTL load. No
external pull-up or pull-down resistor is required.
Pin is switched to ground when device is in
shutdown mode
TFDU6102F:
Assertion of this pin high for a period of time exceeding
400
µs
places the module into shuthdown mode. One the
falling edge of this signal, the TxD pin is sampled and
used to set receiver low bandwidth (Txd = Low) or high
bandwidth (Txd = High) mode.
5
SD
Shutdown, also used for dynamic mode switching
6
V
CC
1
Supply Voltage. Connect to positive power supply
(2.7 V to 5.25 V). Placement of a 1.0
µF
to 10.0
µF
coupling ceramic capacitor as close as possible to the
V pin is recommended.
7
Mode
HIGH: High speed mode;
LOW: Low speed mode, SIR only
(see chapter “Mode Switching”)
TFDU6101 only:
The mode pin can also be used to indicate the dynamically
programmed mode. The maximum load is limited to 50 pF.
High indicates FIR/MIR–, low indicates SIR–mode
8
GND
Ground
I/O Active
I
O
HIGH
LOW
I
HIGH
I
O
“U” Option Baby Face
(Universal)
IRED
Detector
14885
Figure 2. Pinnings
Document Number 82551
Rev. A1.0, 01–Feb–02
www.vishay.com
3
DSP and ARM Processors
京公网安备 11010802033920号
EEWORLD
