HSDL-3612
IrDA® Data Compliant 115.2 kb/s 3 V to 5 V Infrared Transceiver
Data Sheet
Description
Features
• Fully compliant to IrDA 1.0 physical layer specifica-
tions – 9.6 kb/s to 115.2 kb/s operation
• Typical link distance > 1.5 m
• IEC825-Class 1 eye safe
• Low power operation range – 2.7 V to 5.25 V
• Small module size – 4.0 x 12.2 x 5.1 mm (HxWxD)
• Complete shutdown – TXD, RXD, PIN diode
• Low shutdown current – 10 nA typical
• Adjustable optical power management – Adjustable
LED drive-current to maintain link integrity
• 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 package
Pb-free and EU RoHS compliant
The HSDL-3612 is a low-profile infrared transceiver
module that provides interface between logic and IR
signals for through-air, serial, half-duplex IR data link.
The module is compliant to IrDA Data Physical Layer
Specifications 1.4 and IEC825-Class 1 Eye Safe.
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 & medical instrumentation
– General data collection devices
– Patient & pharmaceutical data collection devices
Functional Block Diagram
V
CC
R1
LEDA (10)
TXD (9)
SP
MD0 (4)
MD1 (5)
HSDL-3612
RXD (8)
CX1
GND (7,3)
CX2
V
CC
(1)
AGND (2)
The HSDL-3612 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.
The HSDL-3612 can be completely shut down to achieve
very low power consumption. In the shut down mode,
the PIN diode will be inactive and thus producing very
little photo-current even under very bright ambient
light. The HSDL-3612 also incorporated 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-3612 front view options (HSDL-3612-007/-
037) and a top view packaging option (HSDL-3612-
008/-038) come with integrated shield that helps to
ensure low EMI emission and high immunity to EMI
field, thus enhancing reliable performance.
Application Support Information
The Application Engineering group is available to assist
you with the technical understanding associated with
HSDL-3612 infrared transceiver module. You can contact
them through your local sales representatives for ad-
ditional details.
Ordering Information
Package Option
Package
Front View
Front View
Top View
Top View
Part Number
HSDL-3612-007
HSDL-3612-037
HSDL-3612-008
HSDL-3612-038
Standard Package Increment
400
1800
400
1800
2
I/O Pins Configuration Table
Pin
1
2
3
4
5
6
7
8
9
10
Description
Supply Voltage
Analog Ground
Ground
Mode 0
Mode 1
No Connection
Ground
Receiver Data Output
Transmitter Data Input
LED Anode
Symbol
V
CC
AGND
GND
MD0
MD1
NC
GND
RXD
TXD
LEDA
10
9
8
7
6
5
4
3
2
1
BACK VIEW (HSDL-3612-007/-037)
10
9
8
7
6
5
4
3
2
1
BOTTOM VIEW (HSDL-3612-008/-038)
Transceiver Control Truth Table
Mode 0
1
0
0
1
Mode 1
0
0
1
1
RX Function
Shutdown
SIR
SIR
SIR
TX Function
Shutdown
Full Distance Power
2/3 Distance Power
1/3 Distance Power
Transceiver I/O Truth Table
Transceiver
Mode
Active
Active
Active
Shutdown
Inputs
TXD
1
0
0
X
[3]
EI
X
High
[1]
Low
Low
Outputs
LED
On
Off
Off
Not Valid
RXD
Not Valid
Low
[2]
High
Not Valid
X = Don’t Care
EI = In-Band Infrared Intensity at detector
Notes:
1. In-Band El ≤ 115.2 kb/s.
2. Logic Low is a pulsed response. The condition is maintained for duration dependent on the pattern and strength of the incident intensity.
3. To maintain low shutdown current, TXD needs to be driven high or low and not left floating.
3
Recommended Application Circuit Components
Component
R1
CX1
[4]
CX2
[5]
Recommended Value
6.2 Ω ± 5%, 0.5 Watt, for 2.7 ≤ V
CC
≤ 3.6 V operation
15.0 Ω ± 5%, 0.5 Watt, for 4.75 ≤ V
CC
≤ 5.25 V operation
0.47 µF ± 20%, X7R Ceramic
6.8 µF ± 20%, Tantalum
Notes:
4. CX1 must be placed within 0.7 cm of the HSDL-3612 to obtain optimum noise immunity.
5. In “HSDL-3612 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.
0.7
0.6
0.5
LOP (mW/sr)
1.5
1.7
1.9
2.1
2.3
ILED (A)
0.4
0.3
0.2
0.1
0
1.3
200
180
160
140
120
100
80
60
40
20
0
0
30 60 90 120 150 180 210 240 270 300
LEDA VOLTAGE (V)
ILED vs. LEDA.
ILED (mA)
Light Output Power (LOP) vs. ILED.
Marking Information
The HSDL-3612-007/-037 is marked “3612YYWW” on
the shield where “YY” indicates the unit’s manufactur-
ing year, and “WW” refers to the work week in which the
unit is tested.
CAUTIONS: The BiCMOS inherent to the design of this component increases the component’s susceptibility to dam-
age 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
Absolute Maximum Ratings
[6]
Parameter
Storage Temperature
Operating Temperature
DC LED Current
Peak LED Current
LED Anode Voltage
Supply Voltage
Transmitter Data
Input Current
Receiver Data
Output Voltage
Symbol
T
S
T
A
I
LED
(DC)
I
LED
(PK)
V
LEDA
Vcc
I
TXD
(DC)
V
O
Minimum
–40
–20
–0.5
0
–12
–0.5
Maximum
+100
+70
165
750
7
7
12
Vcc+0.5
Unit
°C
°C
mA
mA
V
V
mA
V
Conditions
≤ 2 µs pulse width,
≤ 10% duty cycle
|I
O
(RXD)| = 20 µA
Note:
6. For implementations where case to ambient thermal resistance ≤ 50°C/W.
Recommended Operating Conditions
Parameter
Operating Temperature
Supply Voltage
Logic High Input Voltage
for TXD, MD0, MD1, and FIR_SEL
Logic Low Transmitter Input Voltage
LED (Logic High) Current Pulse Amplitude
Receiver Signal Rate
Symbol
T
A
V
CC
V
IH
V
IL
I
LEDA
Minimum
–20
2.7
2 V
CC
/3
0
180
2.4
Maximum
+70
5.25
V
CC
V
CC
/3
300
115.2
Unit
°C
V
V
V
mA
kb/s
5
详细参数
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