HSDL1100 HP [Agilent(Hewlett-Packard)], HSDL1100 Datasheet - Page 6

• Manufacturer Part Number: HSDL1100
• Description: General Application Guide for the HSDL-1100 4 Mb/s Infrared Transceiver
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Connect IRSLO/IRRX2 pin 37 of
the PC87108 to RXD-B (pin 5 of the
HSDL-1100).
For Sharp ASK/DASK using the NS
PC87108, the PC87108 should be
configured by the ASK/DASK
software to:
1. Receive data from only one
receive pin
2. Set the receive to the AUX input
IRRX2
VLSI VL82C147
For the VLSI VL82C147 I/O chip,
the Ir link can be realized with the
following connections:
Connect IROUT pin 66 of the
VL82C147 to the I/O side of R1/CX2
labeled TXD on the HSDL-1100
diagram.
Connect SIRIN pin 67 of the
VL82C147 to RXD-A (pin 8 of the
HSDL-1100).
Connect FIRIN pin 65 of the
VL82C147 to RXD-B (pin 5 of the
HSDL-1100).
38
RXD-A
67
RXD-A
IRRX
SIRIN
8
8
1
R1
R1
39
HSDL-1100
66
IROUT
HSDL-1100
7
IRTX
7
VL82C147
PC87108
CX2
CX2
IRSLO/IRRX
RXD-B
RXD-B
37
65
FIRIN
5
5
2
SMC FDC37C957
For the SMC FDC37C957 I/O chip,
the Ir link can be realized with the
following connections:
Connect IRTX pin 204 of the
FDC37C957 to the 0.1 F capacitor
connected to R1/CX2 of the HSDL-
1100 diagram.
Connect IRRX pin 203 of the
FDC37C957 to RXD-A (pin 8 of the
HSDL-1100).
Connect IRMODE pin 190 of the
FDC37C957 to RXD-B (pin 5 of the
HSDL-1100).
CX3 must be 1000 pF in the
application circuit (other I/O chips
use 4700 pF).
Note that the 0.1 F capacitor
connected to the transmit line is
necessary since the SMC I/O chip
IRTX pin could be left in a logic
high state for an indeterminate
period of time. Connection of the
IRTX directly to R1/CX2 would
damage the HSDL-1100’s LED if
the IRTX line was left in the logic
high state.
Software Recommendations
Please see page 24 in the Hewlett-
Packard IrDA Design Guide.
203
RXD-A
IRRX
8
R1
0.1 F
204
HSDL-1100
7
IRTX
FDC37C957
CX2
190
IRMODE
RXD-B
5
Microsoft (Windows 95) or PUMA
Technology are the most likely
vendors to have released 4Mb/s Ir
software.
Evaluation Boards
HSDL-1100 FRONT lead form
evaluation boards can be obtained
from your Hewlett-Packard Sales
Representative. The evaluation
boards can be plugged into a
standard 6-8 pin edge connector, or
hard-wired via cable to your Ir
system’s I/O chip. The connection
to the I/O chip should be as shown
above in the Interface to Recom-
mended I/O Chips section of this
note. Both V
connected to the same power
supply, or separate supplies as
desired. The ground pin should be
connected to the most noise free
ground on the system board.
www.hp.com/go/ir
For technical assistance or the location of
your nearest Hewlett-Packard sales office,
distributor or representative call:
Americas/Canada: 1-800-235-0312 or
[phone]
Far East/Australasia: Call your local HP
sales office.
Japan: (81 3) 3335-8152
Europe: Call your local HP sales office.
Data Subject to Change
Copyright © 1997 Hewlett-Packard Co.
Printed in U.S.A. 5965-7999E (5/97)
CC
pins can be