HSDL-3602
IrDA® Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver
Data Sheet
Description
The HSDL-3602 is a low profile infrared transceiver mod-
ule that provides interface between logic and IR signals
for through-air, serial, half-duplex IR data link. The mod-
ule is compliant to IrDA Data Physical Layer Specifica-
tions 1.4 and IEC825-Class 1 Eye Safety Standard.
The HSDL-3602 contains a high-speed and high-effi-
ciency 870 nm LED, a silicon PIN diode, and an integrat-
ed circuit. The IC contains an LED driver and a receiver
providing a single output (RXD) for all data rates sup-
ported.
Features
• Fully compliant to IrDA 1.1 specifications:
— 9.6 kb/s to 4 Mb/s operation
— Excellent nose-to-nose operation
• Typical link distance > 1.5 m
• IEC825-Class 1 eye safe
• Wide operating voltage range — 2.7 V to 3.6 V
• Small module size — 4.0 x 12.2 x 4.9 mm (H x W x D)
• Complete shutdown — TXD, RXD, PIN diode
• Low shutdown current — 10 nA typical
• Adjustable optical power management — Adjust-
able LED drive-current to maintain link integrity
• Single Rx data output — FIR select pin switch to FIR
• Integrated EMI shield — Excellent noise immunity
• Edge detection input — Prevents the LED from long
turn-on time
• Interface to various super I/O and controller devices
• Designed to accommodate light loss with cosmetic
window
• Only 2 external components are required
• Lead free
and EU RoHS compliant
Pb-free
package
V
CC
R1
LEDA (10)
Applications
• Digital imaging
— Digital still cameras
— Photo-imaging printers
• Data communication
— Notebook computers
— Desktop PCs
— Win CE handheld products
— Personal Digital Assistants (PDAs)
— Printers
— Fax machines, photocopiers
— Screen projectors
— Auto PCs
— Dongles
— Set-top box
• Telecommunication products
— Cellular phones
— Pagers
• Small industrial and medical instrumentation
— General data collection devices
— Patient and pharmaceutical data collection
devices
• IR LANs
TXD (9)
SP
MD0 (4)
MD1 (5)
HSDL-3602
RXD (8)
FIR_SEL (3)
CX1
GND (7)
CX2
V
CC
(1)
AGND (2)
HSDL-3602 Functional block diagram
The HSDL-3602 can be completely shut down to
achieve very low power consumption. In the shut down
mode, the PIN diode is inactive, thus producing very lit-
tle photo-current even under very bright ambient light.
The HSDL-3602 also incorporates the capability for
adjustable optical power. With two programming pins;
MODE 0 and MODE 1, the optical power output can be
adjusted lower when the nominal desired link distance
is one-third or two-third of the full IrDA link.
The HSDL-3602 comes with a front view packaging
option (HSDL-3602-007/-037) and a top view packag-
ing option (HSDL-3602-008/-038). It has an integrated
shield that helps to ensure low EMI emission and high
immunity to EMI field, thus enhancing reliable perfor-
mance.
Ordering Information
Package Option
Package
Front View
Application Support Information
The Application Engineering group in Lite-On Tech-
nology is available to assist you with the Technical
understanding associated with HSDL-3602 infrared
transceiver module. You can contact them through your
local Lite-On Technologies' sales representatives for ad-
ditional details.
Part Number
HSDL-3602-007
Standard Package Increment
400
Front View
HSDL-3602-037
1800
Top View
HSDL-3602-008
400
Top View
HSDL-3602-038
1800
I/O Pins Configuration Table
Pin
1
2
3
4
5
6
7
8
9
10
Description
Supply Voltage
Analog Ground
FIR Select
Mode 0
Mode 1
No Connection
Ground
Receiver Data Output
Transmitter Data Output
LED Anode
Symbol
V
CC
AGND
FIR_SEL
MD0
MD1
NC
GND
RXD
TXD
LEDA
10
9
8
7
6
5
4
3
2
1
Back view (HSDL-3602-007/-037)
BACK VIEW (HSDL-3602 #007/#017)
10
9
8
7
6
5
4
3
2
1
Bottom view (HSDL-3602-008/-038)
BOTTOM VIEW (HSDL-3602-008/-038)
2
Transceiver Control Truth Table
Mode 0
Mode 1
FIR_SEL
1
0
X
0
0
0
0
1
0
1
1
0
0
0
1
0
1
1
1
1
1
X = Don't Care
RX Function
Shutdown
SIR
SIR
SIR
MIR/FIR
MIR/FIR
MIR/FIR
TX Function
Shutdown
Full Distance Power
2/3 Distance Power
1/3 Distance Power
Full Distance Power
2/3 Distance Power
1/3 Distance Power
Transceiver I/O Truth Table
Transceiver Mode
Active
Active
Active
Active
Shutdown
FIR_SEL
X
0
1
X
X
Inputs
TXD
1
0
0
0
X
[4]
EI
X
High
[1]
High
[2]
Low
Low
Outputs
LED
On
Off
Off
Off
Not Valid
RXD
Not Valid
Low
[3]
Low
[3]
High
Not Valid
X = Don't Care EI = In-Band Infrared Intensity at detector
Notes:
1. In-Band EI ≤ 115.2 kb/s and FIR_SEL = 0.
2. In-Band EI ≥ 0.576 Mb/s and FIR_SEL = 1.
3. Logic Low is a pulsed response. The condition is maintained for duration dependent on the pattern and strength of the incident intensity.
4. To maintain low shutdown current, TXD needs to be driven high or low and not left floating.
Recommended Application Circuit Components
Component
Recommended Value
R1
2.2 Ω ± 5%, 0.5 Watt, for 2.7 ≤ V
CC
≤ 3.3 V operation
2.7 Ω ± 5%, 0.5 Watt, for 3.0 ≤ V
CC
≤ 3.6 V operation
CX1
[5]
0.47 µF ± 20%, X7R Ceramic
CX2
[6]
6.8 µF ± 20%, Tantalum
Notes:
5. CX1 must be placed within 0.7 cm of the HSDL-3602 to obtain optimum noise immunity.
6. In "HSDL-3602 Functional Block Diagram" on page 1 it is assumed that Vled and V
CC
share the same supply voltage and filter capacitors. In case
the 2 pins are powered by different supplies CX2 is applicable for Vled and CX1 for V
CC
. In environments with noisy power supplies, including
CX2 on the V
CC
line can enhance supply rejection performance.
3
LEDA vs LEDA
0.7
0.6
0.5
ILED (A)
0.4
0.3
0.2
0.1
0
1.3
1.5
1.7
1.9
2.1
2.3
LOP (mW/sr)
450
400
350
300
250
200
150
100
50
0
0
LIGHT OUTPUT POWER (LOP) vs ILED
0.1
0.2
0.3
0.4
0.5
0.6
0.7
LEDA VOLTAGE (V)
ILED (A)
Marking Information
HSDL-3602 Graph 1
HSDL-3602 Graph 2
The HSDL-3602-007/-037 is marked ‘3602YYWW’ on
the shield where ‘YY’ indicates the unit’s manufacturing
year, and ‘WW’ refers to the work week in which the unit
is tested.
Absolute Maximum Ratings
[7]
Parameter
Storage Temperature
Operating Temperature
DC LED Current
Peak LED Current
Symbol
T
S
T
A
I
LED
(DC)
I
LED
(PK)
Minimum
–40
–20
Maximum
+100
+70
165
650
750
Unit
˚C
˚C
mA
mA
mA
V
V
mA
V
Conditions
≤ 90 µs pulse width,
≤ 25% duty cycle
≤ 2 µs pulse width,
≤ 10% duty cycle
LED Anode Voltage
Supply Voltage
Transmitter Data Input Current
Receiver Data Output Voltage
V
LEDA
V
CC
I
TXD
(DC)
V
O
–0.5
0
–12
–0.5
7
7
12
V
CC
+ 0.5
|I
O
(RXD)| = 20 µA
Note:
7. For implementations where case to ambient thermal resistance ≤ 50˚C/W.
Caution:
The BiCMOS inherent to the 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.
4
Recommended Operating Conditions
Parameter
Symbol
Operating Temperature
T
A
Supply Voltage
V
CC
Logic High Input Voltage
V
IH
for TXD, MD0, MD1, and
FIR_SEL
Logic Low Transmitter
V
IL
Input Voltage
LED (Logic High) Current
I
LEDA
Pulse Amplitude
Receiver Signal Rate
Minimum
–20
2.7
2 V
CC
/3
Maximum
+70
3.6
V
CC
Unit
˚C
V
V
Conditions
0
400
0.0024
V
CC
/3
650
4
V
mA
Mb/s
Electrical & Optical Specifications
Specifications hold over the Recommended Operating Conditions unless otherwise noted. Unspecified test condi-
tions can be anywhere in their operating range. All typical values are at 25˚C and 3.3 V unless otherwise noted.
Parameter
Symbol
Min. Typ.
Max. Units
Conditions
Transceiver
Supply Current Shutdown
Idle
Digital Input
Current
Transmitter
Transmitter
Radiant
Intensity
Logic
Low/High
Logic High
Intensity
Peak
Wavelength
Spectral Line
Half Width
Viewing Angle
Optical
Pulse Width
I
CC1
I
CC2
I
L
/I
H
–1
10
2.5
200
5
1
nA
mA
µA
V
SD
≥ V
CC
– 0.5
V
I
(TXD) ≤ V
IL
, EI = 0
0 ≤ V
I
≤ V
CC
EI
H
100
250
400
mW/sr
V
IH
= 3.0 V
I
LEDA
= 400 mA
θ
1/2
≤ 15˚
λ
p
∆λ
1/2
2θ
1/2
tpw (EI)
30
1.5
148
115
875
35
60
1.8
260
135
40
50
nm
nm
˚
µs
ns
ns
ns
µs
tpw(TXD) = 1.6 µs at 115.2 kb/s
tpw(TXD) = 217 ns at 1.15 Mb/s
tpw(TXD) = 125 ns at 4.0 Mb/s
tpw(TXD) = 125 ns at 4.0 Mb/s
t
r/f
(TXD) = 10 ns
TXD pin stuck high
1.6
217
125
Rise and
Fall Times
Maximum
Optical
Pulse Width
LED Anode On State Voltage
LED Anode Off State Leakage
Current
t
r
(EI),
t
f
(EI)
tpw (max)
20
V
ON
(LEDA)
I
LK
(LEDA)
1
2.4
100
V
nA
I
LEDA
= 400 mA, V
I
(TXD) ≥ V
IH
V
LEDA
= V
CC
= 3.6 V,
V
I
(TXD) ≤ V
IL
5
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