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MiniSIR2(R) MiniSIR2-1(R) MiniSIR2-2(R) SIRComm(R) MiniSIR2(R) 115.2kbps IrDA(R)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 formfactor 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 VDD 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... -25oC to +85oC 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 VDD 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.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 1 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 TYPICAL APPLICATION CIRCUIT
PIN DESCRIPTION
PIN 1 2 3 4 5 6 NAME ANODE IRTX IRRX* SD VDD VSS FUNCTION IrLED Anode Transmitter Input Receiver Output Enables SD Mode Positive Power Supply Ground I/O O I O I I I ACTIVE Low High Low High -----
ABSOLUTE MAXIMUM RATINGS
VDD ......................................................................................... - 0.3V to + 6.0V Voltage at VSELECT and IRTX (respect to GND) ................. - 0.3V to VDD +.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.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 2 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 ELECTRICAL & OPTICAL CHARACTERISTICS
2.5 < VDD < 5.5V (TA =Full Temperature Range, unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
120 0.01
MAX
170 1 100 0.3
UNITS
A A mW/sr W/sr ns nm nm % W/cm 2 mW/cm2 W/cm 2 nm V V V V A A A s s ns s ns s s s
Supply Current (IDD) @3.0V, T=25C No Received Data, Transmitter Off Shutdown Current (ISD) SD = "VDD"
TRANSMITTER
Radiant Intensity (IE)(-15 to +15) Radiant Intensity Angle of Half Intensity Optical Rise/Fall Time Peak Wavelength Optical Bandwidth Optical Overshoot LED Peak IF Current = 300mA, IRTX Logic "High" IRTX Logic "Low" 46 20 40 875 40
850 IF = 50 mA
900 3
RECEIVER
Detection Threshold Irradiance Overload Irradiance Half Angle (Photodiode) Sunlight Ambient Rejection No Modulation Receiver Peak Sensitivity Wavelength 2.5 500 35 500 880 0.6VDD -0.5 2.2 -1 -1 4 VDD + 0.5V 0.2 VDD 0.4 +1 +1 100 200 200 100 1 2.5 400 1.8 150 17 50 3.5
DIGITAL INPUT/OUTPUT
Input High (Logic 1) Voltage, VIH Input Low (Logic 0) Voltage, VIL Output High (Logic 1) Voltage, VOH Output Low (Logic 0) Voltage, VOL Output Leakage (IRRX*, Anode) Input Leakage Input Current IRTX, SD IRTX, SD IRRX* = -250A@ 2.5V IRRX* = 1.0mA SD = "1" SD, IRTX = "0" IRTX = "1", SD ="0" (CLOAD = 25 pF) SD="1" "0" SD="0" "1" VDD = 2.5-5.5V 2 1.6 s Input Pulse, Irradiance = 4W/cm 2 2 Irradiance = 3.5W/cm - 500mW/cm 2 2 Irradiance = 3.5W/cm - 500mW/cm IRTX="1" > 200s
AC PARAMETERS
Recovery Delay from Shutdown to Full Sensisitivity (TRECOVERY) Delay to Shutdown (SDD) IRRX* Rise/Fall Time (TR/TF) Pulse Width (TW) (IRRX*) Pulse Jitter (TJ) (IRRX*) Pulse Delay (TD) (IRRX*) IrLED Maximum Pulse Width Receiver Latency (TL)
18
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 3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America 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.
Phone 1-714-429-1122 - 3 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 LED & PHOTODIODE CHARACTERISTICS
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 4 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
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
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 5 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2-1 OUTLINE DRAWINGS
MiniSIR2-1 Overall Dimensions With Shield L 9.97 mm x W 3.73 mm x H 4.07 mm L 0.40 inch x W 0.15 inch x H 0.16 inch
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 6 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2-2 OUTLINE DRAWINGS (Unshielded)
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 7 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2, 2-1, 2-2 PACKING, STORAGE AND BAKING RECOMMENDATIONS
Moisture Proof Packing
In order to avoid moisture absorption during transportation and storage, MiniSIR2 reels are packed in aluminum envelopes which contain a desiccant with a humidity indicator. The indicator color changes from blue to pink as moisture is absorbed.
Storage
To avoid moisture absorption, MiniSIR2 reels should remain in the original, unopened moisture proof packing. Parts should be soldered within 24 hours after unpacking. Reels that have been unpacked, but will not be soldered within 24 hours, should be stored in a desiccator.
Baking
Parts that have been stored over 6 months or unpacked over 24 hours should be baked under the following guidelines: Reels * 60C for 48 hours or more Loose Parts * 100C for 4 hours or more or * 125C for 2 hours or more or * 150C for 1 hour or more
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 8 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2, 2-1, 2-2 SOLDERING AND CLEANING RECOMMENDATIONS
Reflow Soldering
1. Reflow soldering paste is recommended: Melting temperature : 178C ~ 192C Composition: Sn ... 63% Pb ... 37% 2. Recommended thickness of metal mask is between 0.2mm and 0.25mm for screen printing. 3. The temperature profile at the top surface of MiniSIR2, shown below, is recommended.
Manual Soldering
1. 2. 3. 4. Use 63/37 or silver solder. Use a soldering iron of 25W or smaller. Adjust the temperature of the soldering iron below 300C. Finish soldering within 3 seconds. Handle only after MiniSIR2 has cooled off.
Cleaning
Perform cleaning after soldering under the following conditions: * Cleaning agent: Alcohol. * Temperature and time: 30 seconds below 50C or 3 minutes below 30C. * Ultrasonic cleaning: Below 20W.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone 1-714-429-1122 - 9 of 18 Fax 1-714-549-5711 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 TAPING SPECIFICATIONS (IN ACCORDANCE WITH JIS C 0806)
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 10 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2-1, 2-2 TAPING SPECIFICATIONS (IN ACCORDANCE WITH JIS C 0806)
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 11 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 EVALUATION BOARD APPLICATION NOTE
MiniSIR2 evaluation boards are available to easily verify performance, quality and reliability. To request boards, please contact Novalog or our local representative. The MS2 evaluation board may also be used to verify MS2-1 or MS2-2 operation.
Demonstrates IR Data Link using MiniSIR2 115.2kbps IrDA-Compliant Miniature Transceiver Module
- Confirms Pulse Width, Data Rate, Range and Angle
"MiniSIR2-EV1" Evaluation Board
- 3.3V Supply (for 5V conversion, see schematic notes, page 12) - A current limiting resistor (R1) value of 2.7 is used for 3.3V operation - Transmit current draw is approximately 300m peak - A 10F stabilizing capacitor (C1) has been mounted to protect against an unstable supply voltage to the LED and to protect against noisy environments, both of which may occur in laboratory conditions
Pin Out
- Pin 1: IRTX (brown) - Pin 2: VDD (red) - Pin 3: VSS (orange) - Pin 4: IRRX* (yellow) - Pin 5: SD (green)
Required Laboratory Equipment
- Power Supply - preferably one per board to lessen crosstalk noise - Oscilloscope - to monitor IRRX* Output - Pulse Generator - set at 1.6s pulse @ 115kHz with a period of 8.7 s, to drive IRTX Input
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 12 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 EVALUATION BOARD SCHEMATIC AND PARTS LIST
Notes: * In noisy environments or when long cables are used, C2 and R2 are recommended. In this case, trace shorting R2 must be cut. For Conversion to 5V Operation: * R1 must be removed and a 8.2, 1/4-W through-hole resistor installed.
QTY
1 1 1 1 1 1
PARTCODE
ECS-TOJY106R ERJ-6GEYJ101V 53047 - 0510 MiniSIR2 ECU-V1H104KBW 263 - 2.7
DESIGNATOR
C1 R2 (Optional) J1 U1 C2 (Optional) R1
MANUFACTURER
Panasonic Panasonic Molex Novalog Panasonic Xicon
DESCRIPTION
SMT 10 F Tantalum Capacitor - Size A 100 Ohm Resistor - Size 0805 5 Pin Connector IrDA-Compliant Transceiver Module SMT .1 F Ceramic Capacitor - Size 1206 SMT 2.7 Ohm, 1/8 Resistor - Size 1206
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 13 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 DESIGN HINTS (1 of 4)
IrLED Current Limiting Resistor Selection:
MiniSIR2's IrLED radiant intensity is proportional to the forward current through the IrLED. For most applications the selection of the IrLED current limiting resistor can be made from the table shown below. Resistor composition should be non-inductive (not wire wound). VDD (volts) Communication Range (meters) Current Limiting Resistor () 2% Transmit Current (mA, peak) 2.7 .5 13 75 3.0 .5 16 75 3.3 .5 20 75 5.0 .5 43 75
.25 62 20
1 0.5 300
.25 75 20
1 2.0 300
.25 91 20
1 2.7 300
.25 160 20
1 8.2 300
Very low power operation can be achieved by trading operating distance for lower IrLED drive current. In this situation, the IrLED drive current can be reduced with an expected corresponding reduction in link operational distance per the following equation:
D = (IF / 0.3A)0.5 * (1 Meter) Using Split Power Supplies
In some applications it may be desirable or necessary to run the IrLED from a higher voltage power source than the rest of the electronics. Figure 1 illustrates a typical application using split supplies. In this application the unregulated supply is used for the high current required by the IrLED which minimizes the power loss in the voltage regulator. Another example when split supplies are required is when the voltage of the module power supply is so low that it is impossible to get the desired current to flow in the IrLED.
Figure 1 - Typical System Using Split Supplies
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 14 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 DESIGN HINTS (2 of 4)
MiniSIR2 permits the use of an IrLED supply voltage as high as 6 volts while the module supply voltage can be as low as 2.5 volts. When the IrLED supply voltage, VLED, is different than the module supply voltage, VDD, the IrLED resistor value "R" must be calculated based on the value of both supplies. VDD determines how hard the FET is turned on, so the resistance of the FET, RFET, must be determined using Figure 2.
Figure 2 - FET Resistance - RFET
Figure 3 - IrLED Forward Voltage Drop - LLED
The voltage drop across the IrLED, VFWD, can be determined using Figure 3. Once these values have been determined, the resistor value for any desired IrLED current, ILED , can be calculated based on the following equation: R = VLED - VFWD - (RREF + 0.4) * ILED ILED Of course this equation can also be used when VDD = VLED.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 15 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 DESIGN HINTS (3 of 4)
Internally Limited Transmitter on Time
In many applications, the device controlling the infrared interface (Super I/O, UART, etc.), powers up with the IRTX pin asserted in the high state. This can cause the IrLED to be driven until the software gets around to deactivating this bit. This may take a long time especially if the software does not accomplish this until the user wishes to actually use the IrDA port. When the IrLED is left on for long periods, it may be damaged. MiniSIR2 eliminates this problem without the use of external capacitors and resistors, as are so often required, by internally limiting the transmitter pulse width. No matter how long the IRTX input remains in the active high state the IrLED will only be driven for 18 to 150 s maximum
IrLED Voltage Filtering
When MiniSIR2 is mounted on a motherboard, IrLED voltage filtering is not usually required. However, if MiniSIR2 is operated at very low voltages, mounted on a daughter board, located where highly resistive or inductive connections to the supply (VDD or VSS) are used, or located in a noisy environment, then IrLED voltage filtering is recommended. Use of IrLED voltage filtering reduces the effects of circuit/wiring inductance and insures that power is correctly delivered to the IrLED. The recommended filtering consists of a low ESR 10, uF capacitor connected from VDD to VSS, and located close to the IrLED current limiting resistor or IrLED anode when anode is connected to VDD. IrLED filtering also reduces the amount of noise in the motherboard caused by the large switching currents in the IrLED.
Input Voltage Filtering
An input voltage filtering capacitor has been integrated internally to MiniSIR2. Therefore, external resistor-capacitor filters are not required, making the MiniSIR2 the lowest total system cost of any IrDA solution. ,
Designs Requiring Longer Range
A second IrLED may be added in series with the IrLED anode input in 5.0V applications only. The IrLED current limiting resistor should be chosen to limit peak current to approximately 300mA.
EMI Immunity
MiniSIR2 has excellent EMI immunity when board layout is implemented with a ground plane under the MiniSIR2 and extending approximately 1 cm in every direction around the module. This ground plane should be maximized with any unused board space filled with ground metal. Unused board space is defined as PC board area not used for other connections or traces. The tabs on the EMI shield should be soldered to the ground plane. This ground plane should have a very low impedance connection to a clean and "noiseless" system ground node for optimum receiver performance. The use of single point grounding techniques is recommended as shown in the figure below.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 16 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
MiniSIR2 DESIGN HINTS - (4 of 4)
Consumer IR (TV Remote) Demodulator
A low cost consumer IR demodulator can be implemented using MiniSIR2's IRRX* output. A buffer with standard CMOS input thresholds works best, however, CMOS TTL threshold inputs can also be used.
MiniSIR2 Optical Port Design
The figure below shows details for correctly positioning MiniSIR2 with respect to the system optical port. One recommended optical port window material (Lexan 101, 141 or 920A) can be obtained from General Electric Plastics (U.S.A.) Tel: 1-800-845-0600 or Fax: 1-413-448-7731. The dye used for the optical port should be IR transmissant above 625 nm. Violet #21051, etc. or Green 31142 (which appears black) is recommended. A detailed selection guide is provided on the Novalog website in the "Application Notes" secton.
Notes: 1. Dimensions shown in mm. 2. Improved receiver performance in the presence of ambient light can be attained by indenting MiniSIR2 into the system box by a few millimeters. 3. MiniSIR2 should be located a minimum of 0.5cm behind the IR transparent window.
Novalog, Inc.
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America Phone Fax 1-714-429-1122 1-714-549-5711 - 17 of 18 info@novalog.com www.novalog.com MiniSIR2 / October 2000
IMPORTANT NOTICE
Novalog, Inc. reserves the right to make changes to its products and specifications or to discontinue any semiconductor product without notice. Customers are advised to obtain the latest version of a product's specifications, which should be considered in evaluating its appropriateness for a particular use. There is no assurance that Novalog's semiconductors are appropriate for any application by a customer. Novalog, Inc. makes no warranties expressed or implied other than compliance with Novalog's data sheet for the component at the time of delivery. Any claim against Novalog must be made within sixty (60) days from the date of delivery from Novalog or it's authorized representative. Novalog has no liability thereafter. Any Novalog or authorized distributor liability is limited to replacement of defective items or return of amounts paid for defective items (at the buyers election). Novalog, Inc. products are not authorized for use in critical components in life support devices or systems. No warranty is expressed or implied with the correctness of this document. Novalog assumes no responsibility for the use of any circuitry other than circuitry embodied in a Novalog product. No other circuit patent licenses are implied. Information contained herein supersedes previously published specifications.
Copyright (c) 1998 Novalog, Inc.
Novalog, Inc.
info@novalog.com www.novalog.com MiniSIR2 / October 2000
3001 Redhill Ave., Bldg. 4, Ste. 109 Costa Mesa, California 92626-4532 United States of America
Phone Fax 1-714-429-1122 1-714-549-5711 - 18 of 18 -

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