Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109
Phone
Fax
info@novalog.com
Costa Mesa, California 92626-4532
1-714-429-1122
1-714-549-5711
www.novalog.com
United States of America
MiniSIR2 / October 2000
- 1 of 18 -
SIRComm
MiniSIR2
115.2kbps IrDA
1.0 Transceiver Module
GENERAL DESCRIPTION
Novalog's MiniSIR2 115.2kbps IrDA 1.0 compliant miniature
transceiver module is the world's smallest, most integrated,
lowest power consumption IrDA 1.0 device in the industry.
MiniSIR2 is compliant to the Infrared Data Association's (IrDA)
1.0 standard as well as compatible with Sharp ASK/DASK and
Consumer IR (TV Remote) modes. These features make
MiniSIR2 ideal for all handheld, battery operated, small form-
factor devices where power and space are critical factors.
MiniSIR2 integrates an analog receiver with on-chip LED power
MOSFET driver transistor, LED, photodiode and a voltage
filtering capacitor. Because of this high level of integration,
only one external device is required. MiniSIR2 also integrates
a metal shield for superior performance in high EMI
environments.
MiniSIR2 is a second generation, enhanced performance version
of the original MiniSIR and is identical in size and form-factor.
A shutdown feature has been added which lowers supply current
from 120A to 1nA in SD mode. Pin 4 controls this SD feature,
whereas in the original MiniSIR, pin 4 is the control pin for
voltage selection. This control pin is not required on MiniSIR2
because of its wide voltage range. Other enhancements include
an extended operating temperature range, greater immunity to
input signal overload and ambient light such as sunlight and
fluorescent light, and the option of operating the LED from a
different supply voltage than V
DD
to optimize system power
utilization.
MiniSIR2 meets the European CENELEC EN60825-1 & IEC
TC76825-1 standards for "Class 1" certification which applies
to all products designed with LEDs.
FEATURES
Compliant to IrDA 1.0 H/W Specifications...
Data Rate: 9600bps to 115.2kbps
Range: 0 Meter to 1 Meter (Minimum)
Sharp ASK/DASK and Consumer IR Compatible
2.5V to 5.5V Supply Operation
120A Supply Current
1nA Shutdown Current (Typical), 1A (Maximum)
Extended Operating Temperature Range... -25
o
C to +85
o
C
Three package options: MS2 (Large Shield)
MS2-1 (Small Shield)
MS2-2 (Without Shield)
Miniature Leadless SMT Package...Two Package Options
L 9.9 mm x W 4.2 mm x H 4.0 mm (with shield)
L 9.97 mm x W 3.73 mm x H 4.07 mm (with shield)
Supplied on Tape & Reel for Auto Insertion...
1,000 Pieces per Reel
Requires Only One External Device...
A Current Limiting Resistor
Ultra-Low System Receiver Latency...
IRRX* Output Disabled During Transmit
Input Open Circuited & Output Tri-stated at SD...
Allows Option for Complete Shutdown
Option of Using Higher Supply Voltage for the LED than V
DD
Internal Limiting of Transmitter On Time...
Integrated AC Coupling on IRTX Inputs
No External AC Coupling Device Required
Meets All European Eye Safety Emission Levels.
MiniSIR2
MiniSIR2-1
MiniSIR2-2
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109
Phone
Fax
info@novalog.com
Costa Mesa, California 92626-4532
1-714-429-1122
1-714-549-5711
www.novalog.com
United States of America
MiniSIR2 / October 2000
- 2 of 18 -
V
DD
......................................................................................... - 0.3V to + 6.0V
Voltage at V
SELECT
and IRTX (respect to GND) ................. - 0.3V to V
DD
+.3V
Operating Temperature Range .............................................. - 25C to + 85C
Storage Temperature Range .................................................. - 30C to + 90C
Stress beyond "Absolute Maximum Ratings" may cause damage to the device. These are stress ratings only and functional operation of
the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may permanently affect device reliability.
MiniSIR2 TYPICAL APPLICATION CIRCUIT
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
PIN
NAME
FUNCTION
I/O
ACTIVE
1
ANODE
IrLED Anode
2
IRTX
Transmitter Input
3
IRRX*
Receiver Output
4
SD
Enables SD Mode
5
V
DD
Positive Power Supply
6
V
SS
Ground
O
I
O
I
I
I
Low
High
Low
High
---
---
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109
Phone
Fax
info@novalog.com
Costa Mesa, California 92626-4532
1-714-429-1122
1-714-549-5711
www.novalog.com
United States of America
MiniSIR2 / October 2000
- 3 of 18 -
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current (I
DD
) @3.0V, T=25C
No Received Data, Transmitter Off
120
170
A
Shutdown Current (I
SD
)
SD = "V
DD
"
0.01
1
A
TRANSMITTER
Radiant Intensity (I
E
)(-15 to +15)
LED Peak I
F
Current = 300mA, IRTX Logic "High"
46
100
mW/sr
Radiant Intensity
IRTX Logic "Low"
0.3
W/sr
Angle of Half Intensity
20
Optical Rise/Fall Time
40
ns
Peak Wavelength
850
875
900
nm
Optical Bandwidth
I
F
= 50 mA
40
nm
Optical Overshoot
3
%
RECEIVER
Detection Threshold Irradiance
2.5
3.5
W/cm
2
Overload Irradiance
500
mW/cm
2
Half Angle (Photodiode)
35
Sunlight Ambient Rejection
No Modulation
500
W/cm
2
Receiver Peak Sensitivity Wavelength
880
nm
DIGITAL INPUT/OUTPUT
Input High (Logic 1) Voltage, V
IH
IRTX, SD
0.6V
DD
V
DD
+ 0.5V
V
Input Low (Logic 0) Voltage, V
IL
IRTX, SD
-0.5
0.2 V
DD
V
Output High (Logic 1) Voltage, V
OH
IRRX* = -250A@ 2.5V
2.2
V
Output Low (Logic 0) Voltage, V
OL
IRRX* = 1.0mA
0.4
V
Output Leakage (IRRX*, Anode)
SD = "1"
-1
+1
A
Input Leakage
SD, IRTX = "0"
-1
+1
A
Input Current
IRTX = "1", SD ="0"
4
100
A
AC PARAMETERS
(C
LOAD
= 25 pF)
Recovery Delay from Shutdown to
SD="1" "0"
200
s
Full Sensisitivity (T
RECOVERY
)
Delay to Shutdown (SD
D
)
SD="0" "1"
200
s
IRRX* Rise/Fall Time (T
R
/T
F
)
V
DD
= 2.5-5.5V
100
ns
Pulse Width (T
W
) (IRRX*)
1.6 s Input Pulse, Irradiance = 4W/cm
2
1
2.5
s
Pulse Jitter (T
J
) (IRRX*)
Irradiance = 3.5W/cm
2
-
500mW/cm
2
400
ns
Pulse Delay (T
D
) (IRRX*)
Irradiance = 3.5W/cm
2
-
500mW/cm
2
1.8
s
IrLED Maximum Pulse Width
IRTX="1" > 200s
18
150
s
MiniSIR2 ELECTRICAL & OPTICAL CHARACTERISTICS
2.5 < V
DD
< 5.5V (T
A
=Full Temperature Range, unless otherwise noted)
Receiver Latency (T
L
)
17
50
s
MODE SWITCHING
Set to Shutdown Mode
1. Set the SD input to logic "High"
2. MiniSIR2 shutdown mode is now enabled,
IRRX* output is tri-stated and IRTX input is
open circuited
Reset from Shutdown
1. When MIniSIR2 is in Shutdown mode, set the SD input to a logic "Low"
2. BW = 9.6kbps - 115.2 kbps mode is now enabled
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109
Phone
Fax
info@novalog.com
Costa Mesa, California 92626-4532
1-714-429-1122
1-714-549-5711
www.novalog.com
United States of America
MiniSIR2 / October 2000
- 4 of 18 -
MiniSIR2 LED & PHOTODIODE CHARACTERISTICS
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109
Phone
Fax
info@novalog.com
Costa Mesa, California 92626-4532
1-714-429-1122
1-714-549-5711
www.novalog.com
United States of America
MiniSIR2 / October 2000
- 5 of 18 -
MiniSIR2 OUTLINE DRAWINGS
MiniSIR2
Overall Dimensions With Shield
L 9.9 mm x W 4.2 mm x H 4.0 mm
L 0.40 inch x W 0.17 inch x H 0.16 inch
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