Transceiver I/O Truth Table
Inputs
TXD
Light Input to Receiver
High
Low
Low
Don’t Care
Don’t Care
High
Low
Don’t Care
SD
Low
Low
Low
High
Outputs
LED
On
Off
Off
Off
RXD
Not Valid
Low
High
High
Notes
1, 2
Notes:
1. In-band IrDA signals and data rates
≤
4Mbit/s.
2. RXD logic low is a pulsed response. The condition is maintained for a duration dependent on pattern and strength of the incident intensity.
Caution:
The BiCMOS inherent to the design of this component increases the component’s suscepti-
bility 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.
5
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
