IBM31T1100 ETC [List of Unclassifed Manufacturers], IBM31T1100 Datasheet - Page 2

• Manufacturer Part Number: IBM31T1100
• Description: Integrated Infrared Transceiver Module
• Manufacturer: ETC [List of Unclassifed Manufacturers]

IBM31T1100A
Pin Assignments and Descriptions
NOTE: The IBM31T1100A is pin and plug compatible with the Temic TFDS6000D.
Pin
1
2
3
4
5
6
7
8
(not shown above)
Guide Pins
Pin Name
SD/BW
LEDC
LEDA
GND
RX
V
NC
TX
cc
Indicates the state of the internal LED cathode. Normally not connected.
Indicates received serial data. It is a push-pull CMOS driver capable of driving a
standard CMOS or TTL load. No external pull-up or pull-down resistor is required. May
switch indeterminately when the IBM31T1100A is transmitting.
Connect to +5 V power supply. Place a 1.0-10
possible to this pin.
Connect to ground of the power supply. A solid ground plane is recommended for proper
operation.
This pin is reserved for special application use only. No signal should be connected to
this pin.
This CMOS input is used to put the IBM31T1100A in shutdown mode. Nominal supply
current draw in this mode is 35
input, this pin also sets the receiver bandwidth. If TX is low when SD/BW transitions
from high to low, the receiver bandwidth is optimized for operation up to 1.2 Mbps. If
TX is high when SD/BW transitions from high to low, the receiver bandwidth is
optimized for operation at 4 Mbps.
Used to transmit serial data when SD/BW is low. This CMOS input controls the LED
driver. An on-chip protection circuit disables the LED driver if TX is high for more than
60
description.
Connect this input to Vcc through a resistor to set the proper LED current. Add an
external LED in series to increase output intensity if required.
Two through-hole guide pins provide mechanical stability during board mounting. They
also improve heat conduction when the part is in operation.
P
sec. This pin is also used to program the bandwidth of the receiver. See SD/BW pin
LEDA
8
LEDC
LED
1
TX
7
P
A versus 5 mA in normal mode. Together with the TX
RX
2
2
Description
SD/BW
6
P
F ceramic bypass capacitor as close as
V
Photodiode
CC
3
NC
5
GND
4
I/O
O
O
I
I
I
Active
High
High
Low
Low