tfdu6301 Vishay, tfdu6301 Datasheet - Page 2

• Manufacturer Part Number: tfdu6301
• Description: Fast Infrared Transceiver Module Fir, 4 Mbit/s For 2.4 V To 3.6 V Operation And Low
• Manufacturer: Vishay

TFDU6301
Vishay Semiconductors
Functional Block Diagram
Pin Description
www.vishay.com
2
Pin Number
1
2
3
4
5
6
7
8
IRED Anode
Function
Cathode
IRED
V
V
RXD
GND
TXD
SD
NC
18468_1
CC2
CC1
19531
TFDU6301
weight 0.075 g
TXD
SD
voltages than 3.6 V an external resistor might be necessary for reducing the
the state of the TXD pin is sampled and used to set receiver low bandwidth
Floating with a weak pull-up of 500 kΩ (typ.) in shutdown mode. High/Low
places the module into shutdown mode. On the falling edge of this signal,
longer than 100 µs. When used in conjunction with the SD pin, this pin is
Shutdown, also used for dynamic mode switching. Setting this pin active
uncontrolled power supply separated from the controlled V
(TXD = Low: SIR) or high bandwidth (TXD = High: MIR and FIR) mode.
protection circuit disables the IRED driver if the TXD pin is asserted for
Received data output, push-pull CMOS driver output capable of driving
standard CMOS. No external pull-up or pull-down resistor is required.
internal power dissipation. This pin is allowed to be supplied from an
This input is used to transmit serial data when SD is low. An on-chip
IRED anode to be externally connected to V
also used to control the receiver mode. Logic reference: 1.8 V logic
levels adapted to 1.8 V logic. RXD echoes the TXD signal.
IRED cathode, internally connected to driver transistor
Am pl if ie r
Figure 1. Functional Block Diagram
Internally not connected
Figure 2. Pinning
Supply voltage
Description
Co mp ar ator
Ground
Logic
and
Control
GND
V
CC1
CC2
(V
IRED
Contro lle d
Dr iv er
Tr i- Stat e
Dr iv er
). For higher
CC1
- supply.
V
RXD
CC2
Document Number 84668
I/O
O
I
I
I
Rev. 1.7, 03-Jan-08
Active
High
High
Low