hsdl-3003 ETC-unknow, hsdl-3003 Datasheet - Page 16

• Manufacturer Part Number: hsdl-3003
• Description: Irda Data Compliant Power 115.2 Kbit/s With Remote Control Infrared Transceiver
• Manufacturer: ETC-unknow

Appendix C: General Application
Guide for the HSDL-3003 Infrared
IrDA
Transceiver
Description
The HSDL-3003, a wide-voltage
operating range infrared
transceiver is a low-cost and small
form factor device that is designed
to address the mobile computing
market such as PDAs, as well as
small embedded mobile products
such as digital cameras and
cellular phones. It is spectrally
suited to universal remote control
transmission function at 940 nm
typically. It is fully compliant to
IrDA 1.4 low power specification
from 9.6 kb/s to 115.2 kb/s, and
Figure 1. IR layout in mobile phone platform.
16
®
DE-MODULATOR
Compliant 115.2 Kb/s
TRANSCEIVER
MOD/
MICROPHONE
SPEAKER
AUDIO INTERFACE
USER INTERFACE
RF INTERFACE
MOBILE PHONE PLATFORM
supports most remote control
codes. The design of the HSDL-
3003 also includes the following
unique features:
• Spectrally suited to universal
• 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 Vcc as shown on page 3
under "Recommended Application
Circuit Components".
remote control transmission
function at 940 nm typically.
consumption requirement.
MICROCONTROLLER
DSP CORE
CONTROLLER
IR
Interface to Recommended I/O Chips
The HSDL-3003’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
TXD_RC, (pin 7), or the
TXD_IrDA, (pin 3), can be used
to send remote control codes.
The block diagrams below show
how the IrDA port fits into a
mobile phone and PDA platform.
ASIC
RC
HSDL-3003