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.
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
D
Supporting Static and Different Dynamic mode
switching modes
(IBM/ Infineon and Temic/ TELEFUNKEN/Vishay)
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
Split power supply (US patent # 08995536),
transmitter and receiver can be operated from two
power supplies with relaxed requirements saving
costs.
D
Fully compatible to TFDU6102E
D
Fully compatible to TFDU6101E in all applications
without the only rarely used device identification
(Rxd low in SD mode)
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. A1.2, 24–Sep–02
www.vishay.com
1
TFDU6102F
Vishay Semiconductors
Package Options
TFDU6102F
Baby Face (Universal)
weight 0.20 g
Ordering Information
Part Number
TFDU6102F–TR3
TFDU6102F–TT3
Qty / Reel or Tubes
1000 pcs
1000 pcs
Description
Oriented in carrier tape for side view surface mounting
Oriented in carrier tape for top view surface mounting
Functional Block Diagram
Push–Pull Driver
Amplifier
Comparator
Rxd
V
CC
2
Mode
SD
Txd
Logic
&
Control
Controlled Driver
V
CC
1
GND
Figure 1. Functional Block Diagram
Cautions:
The BiCMOS inherent to the design of this component increases the components susceptibility to damage from electrostatic
discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of this component to prevent
damage and/or degradation which may be induced by ESD.
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 obsoletes
the former version.
www.vishay.com
2
Document Number 82551
Rev. A1.2, 24–Sep–02
TFDU6102F
Vishay Semiconductors
Pin Description
Pin Number
“U”
1
V
CC2
, 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
CC1
supply
IRED Cathode
Txd
IRED cathode, internally connected to driver transistor
This 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 100 ms. When used in
conjunction with the SD pin, this pin is also used to control
receiver mode.
Receiver Data Output
Shutdown, also used for dynamic mode switching.
Assertion of this pin high for a period of time exceeding
400
µs
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) or high bandwidth
(Txd = High) mode. If the mode pin is asserted high, the
dynamic mode switching circuit cannot force low–band-
width, but if the mode pin is held low, mode switching is
fully operational.
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.
HIGH: High speed mode; MIR and SIR
LOW: Low speed mode, SIR only
(see chapter “Mode Switching”)
Ground
I
I
HIGH
Function
Description
I/O Active
2
3
4
5
Rxd
SD
O
I
LOW
HIGH
6
V
CC1
7
Mode
8
GND
“U” Option Baby Face
(Universal)
IRED
Detector
14885
Figure 2. Pinnings
Document Number 82551
Rev. A1.2, 24–Sep–02
www.vishay.com
3
Analog electronics
京公网安备 11010802033920号
EEWORLD
