HSDL-3003
IrDA
®
Data Compliant Low Power
115.2 kbit/s with Remote Control
Infrared Transceiver
Data Sheet
Description
The HSDL-3003 is a small form factor enhanced
infrared (IR) transceiver module that provides the
capability of (1) interface between logic and IR
signals for through-air, serial, half-duplex IR data
link, and (2) IR remote control transmission
operating at the optimum 940 nm wavelength for
universal remote control applications.
For IR data communication, the HSDL-3003
provides the flexibility of low power SIR
applications and remote control applications with
no external components needed for the selection of
the type of application. The transceiver is compliant
to IrDA
®
Physical Layer Specification Version
1.4 Low Power from 9.6 kbit/s to 115.2 kbit/s (SIR)
and it is IEC 825-Class 1 Eye Safe.
The HSDL-3003 has very low idle current and can
be shutdown completely to achieve very low power
consumption. In the shutdown mode, the PIN diode
will be inactive and thus producing very little
photocurrent even under very bright ambient light.
Such features are ideal for battery operated hand-
held products such as PDAs and mobile phones.
• Minimum external components
– Integrated single-biased LED resistor
– Direct interoperability to MPU
– Programmable Txd features
– Integrated remote control FET
• Withstands >100 mV
p-p
power supply ripple typically
• V
CC
supply 2.4 to 3.6 volts
• Integrated EMI shield
• Designed to accommodate light loss with cosmetic
windows
• IEC 825-Class 1 eye safe
• Lead-free and RoHS compliant
Remote Control Features
• Wide angle and high radiant intensity
• Spectrally suited to remote control transmission function
at 940 nm typically
• Typical link distance up to 8 meters
IrDA
®
Data Features
• Fully compliant to IrDA
®
Physical Layer Specification 1.4
low power from 9.6 kbit/s to 115.2 kbit/s (SIR)
– Excellent nose-to-nose operation
– Link distance up to 50 cm typically
• Complete shutdown for TxD_IrDA, RxD_IrDA, and PIN
diode
• Low power consumption
– Low idle current, 50
µA
typically
– Low shutdown current, 10 nA typically
• LED stuck-high protection
General Features
• Guaranteed temperature performance, –20° to 70°C
– Critical parameters are guaranteed over
temperature and supply voltage
• Low power consumption
• Small module size
– Height: 2.70 mm
– Width: 8.00 mm
– Depth: 2.95 mm
Applications
• Mobile data communication and universal remote
control transmission
– Personal digital assistants (PDAs)
– Mobile phones
CAUTION:
The BiCMOS inherent to this design of this component increases the component’s
susceptibility to damage from Electrostatic Discharge (ESD). It is advised that normal static
precautions be taken in handling and assembly of this component to prevent damage and/or
degradation, which may be induced by ESD.
Order Information
Part Number
HSDL-3003-021
HSDL-3003-001
Packaging Type
Tape and Reel
Tape and Reel
Package
Front View
Front View
Quantity
2500
500
Marking Information
The unit is marked with a number
‘2’ and ‘YWWLL’ on the shield for
front option.
Y = year
WW = work week
LL = lot information
V
CC
CX2
GND
V
CC
(6)
CX1
GND (8)
REAR VIEW
HSDL-3003 TRANSCEIVER MODULE
TRANSCEIVER IC
VOLTAGE/
CURRENT
REFERENCE
BLOCK
SHUTDOWN
PRE AMP
8
7
6
5
4
3
2
1
RECEIVER
RxD_IrDA (4)
VLED
CX3
R1
LEDA (1)
SD (5)
TxD_RC (7)
TxD_IrDA (3)
RC/IR
TRANSMITTER
SELECT
EYE
SAFETY
-RC
OUTPUT
BUFFER
PHOTO-
DETECTOR
DETECTOR
SHIELD
SHUTDOWN
RC_BUFFER
IR_BUFFER
EYE
SAFETY
-IR
RC_LED
TRANSMITTER
IR_LED
Figure 1. Functional block diagram of low power IrDA link distance and remote control.
2
I/O Pins Configuration Table
Pin
1
2
3
Symbol
LEDA
N.C.
TxD_IrDA
I/O
I
–
I
Description
IR and Remote
Control LED Driver
No Connection
IrDA Transmitter Data
Input. Active High
IrDA Receiver Data
Output. Active Low
Shutdown. Active High
Supply Voltage
Remote Control
Transmission Input.
Active High
Connect to System
Ground
EMI Shield
Notes
Tied through external resistor, R1, to VLED from 2.4 to 4.5 Volt
No Connection
Logic high turns on the IrDA LED. If held HIGH longer than
~50
µs,
the IrDA LED is turned off. TxD_IrDA must be driven either
HIGH or LOW. Do not leave the pin floating
Output is at LOW pulse response when light pulse is seen
Complete shutdown TxD_IrDA, RxD_IrDA, and PIN diode. Do not
leave the pin floating
Regulated, 2.4 to 3.6 Volt
Logic high turns on the RC LED. If held HIGH longer than ~50
µs,
the RC LED is turned off. TxD_RC must be driven either HIGH or
LOW. Do not leave the pin floating
Tie this pin to system ground
Tie to system ground via a low inductance trace. For best
performance, do not tie it to the HSDL-3003 GND pin directly
4
5
6
7
RxD_IrDA
SD
V
CC
TxD_RC
O
I
I
I
8
–
GND
Shield
I
–
Recommended Application Circuit Components
Component
R1
Recommended Value
1.8
Ω ±
5%, 0.25 Watt for 2.4
≤
VLED
≤
2.7 V
2.7
Ω ±
5%, 0.25 Watt for 2.7
≤
VLED
≤
3.3 V
3.3
Ω ±
5%, 0.25 Watt for 3.0
≤
VLED
≤
3.6 V
4.7
Ω ±
5%, 0.25 Watt for 3.6
≤
VLED
≤
4.5 V
CX1
[1]
CX2
[2]
CX3
0.47
µF ±
20%, X7R Ceramic
6.8
µF ±
20%, Tantalum
6.8
µF ±
20%, Tantalum
Notes:
1. CX1 must be placed within 0.7 cm of HSDL-3003 to obtain optimum noise immunity.
2. The supply rejection performance can be enhanced by including CX2, as shown in Figure 1, in
environment with noisy power supplies.
3
Different Remote Control
Configurations for HSDL-3003
The HSDL-3003 can operate in
the single-TXD programmable
mode or the two-TXD direct
transmission mode.
(TxD_IrDA input pin) is used to
turn on either the 875 nm LED or
the 940 nm LEDs while the
TxD_RC input pin is grounded.
The transceiver is in default mode
(IrDA) when powered up. User
needs to apply the following
programming sequence to both
the TxD_IrDA and SD inputs to
enable the transceiver to operate
in either the IrDA or remote
control mode.
Single-TXD Programmable
Mode
In the single-TXD programmable
mode, only one input pin
tC
t
TL
tA
tB
tC
SHUTDOWN
(ACTIVE HIGH)
TxD_IrDA
(ACTIVE HIGH)
• • •
• • •
• • •
SHUTDOWN
DRIVE
IrDA LED
RC
MODE
DRIVE
RC LED
RESET
DRIVE
IrDA LED
TxD_RC
(GND)
Figure 2.
Two-TXD Direct
Transmission Mode
In the two-TXD direct
transmission mode, the 875 nm
LED and the 940 nm LEDs are
turned on separately by two
different input pins. The
TxD_IrDA input pin is used to
turn on the 875 nm LED while
the TxD_RC input pin is used to
turn on the 940 nm LEDs.
Please refer to the Transceiver
I/O truth table for more details.
Transceiver Control I/O Truth Table for Two-TXD Direct
Transmission Mode
SD
0
0
0
0
1
TXD_IrDA
0
0
1
1
0
TXD_RC
0
1
0
1
0
IrDA LED
OFF
OFF
ON
DIM
OFF
RC LEDs
OFF
ON
OFF
ON
OFF
Remarks
IR Rx enabled. Idle mode
Remote control operation
IrDA Tx operation
Not recommended
Shutdown mode*
* The shutdown condition will set the transceiver to the default mode (IrDA).
4
Absolute Maximum Ratings at T
A
= 25°C
For implementations where case to ambient thermal resistance is
≤
50°C/W
Parameter
Storage Temperature
Operating Temperature
LED Supply Voltage
Supply Voltage
Output Voltage: RxD
Total LED Current Pulse Amplitude
IR LED Current Pulse Amplitude
RC LED Current Pulse Amplitude
Symbol
T
S
T
A
V
LED
V
CC
V
O
I
VLED
(I
VLED
)
IR
(I
VLED
)
RC
Min.
-40
-20
0
0
0
Max.
100
70
6
6
6
580
280
580
Units
°C
°C
V
V
V
mA
mA
mA
≤
90
µs
Pulse Width
≤
20% Duty Cycle
≤
90
µs
Pulse Width
≤
20% Duty Cycle
≤
90
µs
Pulse Width
≤
20% Duty Cycle
Conditions
Recommended Operating Conditions
Parameter
Operating Temperature
Supply Voltage
LED Supply Voltage
Logic Input Voltage
for TxD_IrDA, TxD_RC
Receiver Input
Irradiance
Receiver Data Rate
Logic High
Logic Low
Logic High
Logic Low
Symbol
T
A
V
CC
V
LED
V
IH
V
IL
E
IH
E
IL
9.6
Min.
-20
2.4
2.4
2/3 V
CC
0
0.0081
Max.
70
3.6
4.5
V
CC
500
0.3
115.2
Units
°C
V
V
V
mW/cm
2
µW/cm
2
kbit/s
For in-band signals
≤
115.2 kbit/s
[3]
For in-band signals
[3]
Conditions
1/3 V
CC
V
5
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