TFDU4301-TT3 Vishay, TFDU4301-TT3 Datasheet - Page 2

• Manufacturer Part Number: TFDU4301-TT3
• Manufacturer: Vishay

Specifications of TFDU4301-TT3

• Lead Free Status / RoHS Status: Supplier Unconfirmed

TFDU4301
Vishay Semiconductors
FUNCTIONAL BLOCK DIAGRAM
PINOUT
TFDU4301
weight 75 mg
www.vishay.com
2
PIN NUMBER
PIN DESCRIPTION
18101-1
1
2
3
4
5
6
7
8
IRED A
IRED cathode
IRED anode
1
FUNCTION
IRED C
V
V
GND
TXD
RXD
SD
NC
2
CC2
CC1
[e-mail], [e-mail],
TXD RXD SD Vcc NC
3
For technical questions within your region, please contact one of the following:
4
18282
TXD
SD
Connect IRED anode directly to the power supply (V
decreased by adding a resistor in series between the power supply and IRED
on-chip protection circuit disables the LED driver if the TXD pin is asserted for
longer than 100 µs. The input threshold voltage adapts to and follows the logic
required. Floating with a weak pull-up of 500 kΩ (typ.) in shutdown mode. The
Shutdown. The input threshold voltage adapts to and follows the logic voltage
This Schmitt-Trigger input is used to transmit serial data when SD is low. An
standard CMOS or TTL loads. During transmission the RXD output is active
and mirrors the transmit signal. No external pull-up or pull-down resistor is
5
Received data output, push-pull CMOS driver output capable of driving
anode. A separate unregulated power supply can be used at this pin.
6
Infrared Transceiver Module (SIR, 115.2 kbit/s)
IRED cathode, internally connected to the driver transistor.
voltage swing is defined by the applied supply voltage.
7
voltage swing defined by the applied supply voltage.
GND
swing defined by the applied supply voltage.
8
Amplifier
for IrDA
Comparator
DESCRIPTION
Logic
control
and
Supply voltage
Not connected
Ground
®
GND
V
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.
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).
CC1
Applications
Controlled driver
Push-pull
driver
[e-mail]
CC2
). IRED current can be
REDC
V
RXD
CC2
Document Number: 81965
I/O
O
I
I
I
Rev. 1.0, 22-Apr-10
ACTIVE
High
High
Low