tfdu6300 Vishay, tfdu6300 Datasheet - Page 2

• Manufacturer Part Number: tfdu6300
• Description: Fast Infrared Transceiver Module Fir, 4 Mbit/s For 2.4 V To 3.6 V Operation
• Manufacturer: Vishay

Functional Block Diagram
Pin Description
Document Number 84763
Rev. 1.7, 03-Jan-08
Pin Number
1
2
3
4
5
6
7
8
IRED Anode
Function
Cathode
IRED
V
V
GND
RXD
TXD
18468_1
SD
NC
CC2
CC1
19531
TFDU6301
weight 0.075 g
TXD
SD
IRED anode to be externally connected to V
than 3.6 V an external resistor might be necessary for reducing the internal
the state of the TXD pin is sampled and used to set receiver low bandwidth
power dissipation. This pin is allowed to be supplied from an uncontrolled
places the module into shutdown mode. On the falling edge of this signal,
Floating with a weak pull-up of 500 kOhm (typ.) in shutdown mode. High/
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
(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.
This input is used to transmit serial data when SD is low. An on-chip
also used to control the receiver mode. Logic reference: V
power supply separated from the controlled V
Low levels related to V
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
cc1
Co mp ar ator
Ground
Logic
and
Control
. RXD echoes the TXD signal.
GND
V
CC1
cc2
(V
IRED
). For higher voltages
cc1
Contro lle d
Dr iv er
Tr i- Stat e
Dr iv er
- supply.
cc1
Vishay Semiconductors
V
RXD
CC2
I/O
O
I
I
I
TFDU6300
www.vishay.com
Active
High
High
Low
2