• Switching between IrDA data

rates is effortless as data is

always present at one of two

receiver outputs RxdA and

RxdB. Rxd-A provides 2.4-

115.2 kb/s data, and Rxd-B

provides 0.5-4 Mb/s data.

Capable of Receiving and Transmitting

Sharp ASK/DASK and TV

Remote

Figure 1. HSDL-1100 Application Diagram.

• The Rxd-B receiver channel

has been verified to correctly

receive Sharp ASK/DASK

500 kHz carrier for data rates

of 9.6 kb/s, 19.2 kb/s, and

38.4 kb/s. The National

Semiconductor PC87108 has

ASK/DASK capability on both

receive pins IRRX1 and IRRX2.

• The Rxd-A receiver channel is

proven capable of receiving

RXD-A

RXD-B

RLED CX7

CX2

R1

10

VCC

VREF

TXD

7

PIN

BIAS

HSDL-1100

8

5

THRESHOLD

AND

SQUELCH

CX3 CX4

CX5

CX1

CX6

3 9 6

GND 1

GND

2

4

VCC VCC

R3

2

TV Remote signals correctly.

However, the sensitivity will

allow only 2-3 meters of

transmit to receive distance

unless the transmit power of

the remote signal is

>100 mW/sr.

• The HSDL-1100 transmitter is

capable of correct Sharp ASK/

DASK and TV Remote data

transmission at IrDA levels for

transmitted intensity (mW/sr).