HSDL-3220-021 Lite-On Electronics, HSDL-3220-021 Datasheet - Page 14

• Manufacturer Part Number: HSDL-3220-021
• Description: Infrared Transceivers IR Transceiver
• Manufacturer: Lite-On Electronics

Specifications of HSDL-3220-021

• Wavelength: 875 nm, 880 nm
• Continual Data Transmission: 4 Mbit/s
• Transmission Distance: 50 cm
• Radiant Intensity: 45 mW/sr
• Half Intensity Angle Degrees: 30 deg to 60 deg
• Pulse Width: 4 us, 1.6 us
• Maximum Rise Time: 60 ns, 600 ns
• Maximum Fall Time: 60 ns, 600 ns
• Led Supply Voltage: 0 V to 6.5 V
• Maximum Forward Current: 50 mA
• Operating Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 25 C
• Dimensions: 8 mm x 3 mm x 2.5 mm
• Data Rate: 4Mbs (FIR)
• Idle Current, Typ @ 25° C: 1.8 mA
• Link Range, Low Power: 1m
• Operating Temperature: -25°C ~ 70°C
• Orientation: Side View
• Shutdown: *
• Size: 8mm x 3mm x 2.5mm
• Standards: IrPHY 1.4
• Supply Voltage: 2.7 V ~ 3.6 V
• Lead Free Status / RoHS Status: Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Compliant

Appendix C: General Application Guide for the HSDL-3220
Description
The HSDL-3220, a low-cost and small form factor infrared
transceiver, 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
fully compliant to IrDA 1.4 low power specification from
9.6 kbit/s to 4.0 Mbit/s, and supports HP-SIR and TV Re-
mote modes. The design of the HSDL-3220 also includes
the following unique features:
• Low passive component count.
• Shutdown mode for low power consumption re-
• Interface to input/output logic circuits as low as 1.8V
Selection of Resistor R1
Resistor R1 should be selected to provide the appropri-
ate peak pulse LED current over different ranges of Vcc
as shown in the table below.
Recommended R1
Figure 17. Mobile phone platform.
14
5.6Ω
quirement.
DE-MODULATOR
TRANSCEIVER
MOD/
MICROPHONE
SPEAKER
AUDIO INTERFACE
USER INTERFACE
RF INTERFACE
Vcc
3.0 V
MICROCONTROLLER
Minimum Peak Pulse
Intensity
45 mW/sr
DSP CORE
Interface to Recommended I/O chips
The HSDL-3220’s TXD data input is buffered to allow
for CMOS drive levels. No peaking circuit or capacitor
is required. Data rate from 9.6 kbit/s up to 4.0 Mbit/s is
available at the RXD pin.
The block diagram below shows how the IR port fits into
a mobile phone and PDA platform.
LED Current
150 mA
CONTROLLER
IR
ASIC
HSDL-3220