HSDL-3002-007 Avago Technologies US Inc., HSDL-3002-007 Datasheet - Page 15

• Manufacturer Part Number: HSDL-3002-007
• Description: Infrared Transceivers 50cm 3V SIR+RC
• Manufacturer: Avago Technologies US Inc.

Specifications of HSDL-3002-007

• Wavelength: 875 nm
• Continual Data Transmission: 115.2 Kbit/s
• Transmission Distance: 50 cm
• Radiant Intensity: 40 mW/sr
• Half Intensity Angle Degrees: 30 deg to 60 deg
• Pulse Width: 1.6 us, 7.5 us
• Maximum Rise Time: 100 ns, 600 ns
• Maximum Fall Time: 100 ns, 600 ns
• Led Supply Voltage: 0 V to 7 V
• Operating Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 20 C
• Dimensions: 9.1 mm x 3.65 mm x 2.7 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

15
Appendix C : General
Application Guide for the
HSDL-3002 Infrared IrDA
Compliant 115.2 Kb/s
Transceiver
Description
The HSDL-3002, a wide voltage
operating range infrared
transceiver is a low-cost and
small form factor device that is
designed to address the mobile
The resistor value chosen above
is for optimal IrDA operation. For
optimized remote control
performance, it is recommended
to turn on both the 870 nm and
940 nm LEDs. Moreover,
separate power control feature
can be incorporated for remote
control operation by implement-
ing device as shown in Figure 3.
Figure 21. IR layout in mobile phone platform.
Recommended R1
2.2
DE-MODULATOR
TRANSCEIVER
MOD/
MICROPHONE
V
3.0 V
CC
SPEAKER
®
Intensity
40 mW/sr
20 mW/sr
AUDIO INTERFACE
USER INTERFACE
RF INTERFACE
computing market such as PDAs,
as well as small embedded mobile
products such as digital cameras
and cellular phones. It also
includes a 940 nm LED to
support universal remote control
applications. It is fully compliant
to IrDA 1.4 low power specifica-
tion from 9.6 kb/s to 115.2 kb/s,
and supports most remote control
codes. The design of the HSDL-
Interface to Recommended I/O Chips
The HSDL-3002’s TXD data input
is buffered to allow for CMOS
drive levels. No peaking circuit or
capacitor is required. Data rate
from 9.6 kb/s up to 115.2 kb/s is
available at the RXD pin. The
V(RC), pin 2, in conjunction with
TxD (IrDA), pin 3, can be used to
send remote control codes. Pin 2
MOBILE PHONE PLATFORM
Minimum Peak
Pulse LED Current
350 mA
400 mA
MICROCONTROLLER
Conditions
Turn on 870 nm LED only TxD V
Turn on 940 nm LED only TXD V
DSP CORE
3002 also includes the following
unique features:
• An additional spectrally suited
• Low passive component count.
• Shutdown mode for low power
Selection of Resistor R1
Resistor R1 should be selected to
provide the appropriate peak
pulse LED current over different
ranges of V
table below.
is driven through a switching FET
transistor with a very low on-
resistance capable of driving 400
mA of current for remote control
operation.
The block diagram below shows
how the IrDA port fits into a
mobile phone and PDA platform.
940 nm LED
consumption requirement.
CONTROLLER
IR
ASIC
CC
RC
HSDL-3002
as shown in the
IH
IL
, V(RC) V
, V(RC) V
IL
IH