IrDA
®
Compliant 4 Mb/s 5 V
Infrared Transceiver
Technical Data
HSDL-3601#007
HSDL-3601#008
Features
•
Fully Compliant to IrDA 1.1
Physical Layer Specifications
- 9.6 kb/s to 4 Mb/s operation
•
Typical Link Distance
>
1.5 m
•
Compatible with ASK, HP-
SIR, and TV Remote
•
IEC825-Class 1 Eye Safe
•
Low Power Operation
- 4.75 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
•
Single Rx Data Output
-
Speed select by FIR Select pin
•
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
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
•
IR LANs
Functional Block Diagram
V
CC
R1
LEDA (10)
TXD (9)
SP
MD0 (4)
MD1 (5)
HSDL-3601
RXD (8)
Description
The HSDL-3601 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 1.1 and IEC825-
Class 1 Eye Safe.
FIR_SEL (3)
CX1
GND (7)
CX2
V
CC
(1)
AGND (2)
2
The HSDL-3601 contains a high-
speed and high-efficiency 870 nm
LED, a silicon PIN diode, and
an integrated circuit. The IC
contains an LED driver and a
receiver providing a single
output (RXD) for all data rates
supported.
The HSDL-3601 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–3601
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-3601 comes in two
package options; the front view
option (HSDL-3601#007/#017),
and the top view option
(HSDL-3601#008/#018). All
options 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 in Hewlett-Packard is
available to assist you with the
technical understanding
associated with HSDL-3601
infrared transceiver module.
You can contact them through
your local Hewlett-Packard
sales representatives for
additional details.
Ordering Information
Package Option
Package
Part Number
Standard Package
Increment
Front View
HSDL-3601#007
400
Front View
HSDL-3601#017
10
Top View
HSDL-3601#008
400
Top View
HSDL-3601#018
10
3
Functional Block Diagram
V
CC
I/O Pins Configuration Table
Pin
1
2
3
4
5
6
7
Description
Supply Voltage
Analog Ground
FIR Select
Mode 0
Mode 1
No Connection
Ground
Receiver Data Output
Transmitter Data Input
LED Anode
Symbol
Vcc
AGND
FIR_SEL
MD0
MD1
NC
GND
RXD
TXD
LEDA
R1
LEDA (10)
TXD (9)
SP
MD0 (4)
MD1 (5)
HSDL-3601
8
9
10
RXD (8)
FIR_SEL (3)
CX1
GND (7)
CX2
V
CC
(1)
AGND (2)
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
BACK VIEW (HSDL-3601 #007/#017)
BOTTOM VIEW (HSDL-3601 #008/#018)
Transceiver Control Truth Table
Mode 0
1
0
0
1
0
0
1
X = Don’t Care
Mode 1
0
0
1
1
0
1
1
FIR_SEL
X
0
0
0
1
1
1
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
X= Don’t Care
Inputs
FIR_SEL
X
0
1
X
X
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
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.
4
Recommended Application Circuit Components
Component
R1
CX1
[5]
CX2
[6]
Recommended Value
6.2
Ω ±
5%, 0.5 Watt, for 4.75
≤
Vcc
≤
5.25 V operation
0.47
µF ±
20%, X7R Ceramic
6.8
µF ±
20%, Tantalum
Notes:
5. CX1 must be placed within 0.7 cm of the HSDL-3601 to obtain optimum noise immunity.
6. In environments with noisy power supplies, supply rejection performance can be enhanced by
including CX2, as shown in “HSDL-3601 Functional Block Diagram” in page 3.
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.3
1.5
1.7
1.9
2.1
2.3
450
400
350
LOP (mW/sr)
300
250
200
150
100
50
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
ILED (A)
LEDA VOLTAGE (V)
ILED (A)
ILED vs. LEDA.
Light Output Power (LOP) vs. ILED.
Marking Information
The HSDL-3601#007/017 is marked
“3601YYWW’ on the shield where “YY”
indicates the unit’s manufacturing year,
and “WW” refers to the work week in
which the unit is tested.
The HSDL-3601#008/018 is marked a
“black” dot on the shield.
Ma
CAUTIONS:
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.
5
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
LED Anode Voltage
Supply Voltage
Transmitter Data
Input Current
Receiver Data
Output Voltage
V
LEDA
Vcc
I
TXD
(DC)
V
O
-0.5
0
-12
-0.5
7
7
12
Vcc+0.5
Unit
°C
°C
mA
mA
mA
V
V
mA
V
|I
O
(RXD)| = 20
µA
≤
90
µs
pulse width,
≤
25% duty cycle
≤
2
µs
pulse width,
≤
10% duty cycle
Conditions
Note:
7. 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
Ambient Light
Symbol
T
A
Vcc
V
IH
Min.
-20
4.75
2 Vcc/3
Max.
+70
5.25
Vcc
Unit
°C
V
V
Conditions
V
IL
I
LEDA
0
400
0.0024
Vcc/3
650
4
V
mA
Mb/s
See IrDA Serial Infrared
Physical Layer Link
Specification, Appendix A
for ambient levels
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