HSDL-3020-021 Avago Technologies US Inc., HSDL-3020-021 Datasheet - Page 18

• Manufacturer Part Number: HSDL-3020-021
• Description: Infrared Transceivers Orion 2 FIR + RC
• Manufacturer: Avago Technologies US Inc.

Specifications of HSDL-3020-021

• Wavelength: 875 nm
• Continual Data Transmission: 4 Mbit/s
• Transmission Distance: 50 cm
• Radiant Intensity: 4 mW/sr
• Half Intensity Angle Degrees: 30 deg
• Pulse Width: 4 us, 1.6 us
• Maximum Rise Time: 40 ns, 600 ns
• Maximum Fall Time: 40 ns, 600 ns
• Led Supply Voltage: 0 V to 6.5 V
• Maximum Forward Current: 190 mA
• Operating Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Dimensions: 10.4 mm x 2.95 mm x 2.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

General Mobile Application Processor
Figure 3: HSDL-3020 configuration with general mobile architecture processor.
Remote Control Operation
The HSDL-3020 is spectrally
suited to universal remote
control transmission function at
940 nm typically. Remote control
applications are not governed by
any standards, owing to which
there are numerous remote
codes in market. Each of those
standards results in receiver
modules with different
sensitivities, depending on the
carrier frequencies and
responsively to the incident light
wavelength. Remote control
carrier frequencies are in the
range of 30 KHz to 60 KHz (for
details of some the frequently
18
IR_RxD
IR_TxD
IOV
GPIO
GPIO
CC
100 kW
100 kW
IOV
GND
CC
RC_VLED
CX6
GND
R3
IR_VLED
CX3
GND
CX7
V
used carrier frequencies, please
refer to AN1314). Some common
carrier frequencies and the
corresponding SA-1110 UART
frequency and baud rate divisor
are shown in Table 3.
Table 3.
Remote Control Carrier
Frequency (kHz)
30
32, 33
36, 36.7, 38, 39.2, 40
56
CC
CX4
R2
CX5
R1
IOV
TxD_RC
RC_VLEDA
RXD
SD
TxD_IR
IR_VLEDA
V
RC LED CATHODE
CC
HSDL-3020
CC
CX1
CX2
NC
GND
GND
SA-1110 UART
Frequency (kHz)
28.8
32.9
38.4
57.6
The transceiver is directly
interfaced with the
microprocessor provided its
support infrared communication
commonly known as Infrared
Communications Port (ICP). The
ICP supports both SIR data rates,
with up to 115.2 kps, and
sometimes FIR data, with data
rates up to 4 Mbps. The remote
control commands can be sent to
one of the available General
Purpose IO pins or the UART
block with IrDA functionality. It
should be observed that although
both IrDA data transmission and
Remote control transmission is
possible simultaneously by the
hardware, the software is
required to resolve this issue to
prevent the mixing and
corruption of data while being
transmitted over the free air. The
above Figure 3 illustrates a
reference interfacing to
implement both IR and RC
functionality with HSDL-3020.
Baud Rate Divisor
8
7
6
4