HSDL-1100 Datasheet, PDF (1/6 Pages) Agilent(Hewlett-Packard) – General Application Guide for the HSDL-1100 4 Mb/s Infrared Transceiver

General Application Guide for
the HSDL-1100 4 Mb/s Infrared
Transceiver
Application Note 1112
HSDL-1100 Performance
Capability
Designed to Meet the IrDA Physical
Layer Specification version 1.1
• Performance is guaranteed at
the 1.152 Mb/s and 4.0 Mb/s
data rates. The HSDL-1100 is
also backward compatible to
2.4-115.2 kb/s data rates as
required by the IrDA specifica-
tion.
• Errorless 4 Mb/s performance
at link distances of 1.3-1.95
meters has been verified using
the HSDL-1100 and I/O chips
such as the National Semicon-
ductor PC87108, the VLSI
VL82C147, and the SMC
FDC37C957.
• Nose-to-Nose (0-5 cm) error-
less performance has also been
verified for an Ir link using the
HSDL-1100 and I/O chips.
• Sharp ASK/DASK errorless
performance on the Rxd-B
channel has been verified at
38.4 kb/s using the National
Semiconductor PC87108. Link
distance exceeded 2 meters
for typical HSDL-1100 units.
• As with the HSDL-1000, the
one-piece package of the
HSDL-1100 allows the Ir
system designer to easily meet
all IrDA viewing angle
specifications.
• 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 Trans-
mitting Sharp ASK/DASK and TV
Remote
V_CC
• 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
CX7
RLED
CX2
TXD
R1
7
10
HSDL-1100
V_CC
CX6
PIN
BIAS
V_REF
R3
4 ^VCC
CX5
GND
2
CX1
THRESHOLD
AND
SQUELCH
1 GND
6
3
CX4
9
CX3
Figure 1. HSDL-1100 Application Diagram.
RXD-A
8
RXD-B
5