RPM970-H14 Photo Link Module IrDA Infrared Communication Module RPM970-H14 RPM970-H14 is an infrared communication module for IrDA Ver. 1.3 (Low Power). The infrared LED, PIN photo diode, and waveform shaping LSI are all integrated into one single package. This module is designed for low power consumption. The very small package makes it a perfect fit for mobile devices. zFeatures 1) Infrared LED, PIN photo diode, LED driver and receiver frequency formation circuit built in. Improvement of EMI noise protection by Shield Case. 2) Applied to SIR (9.6k to 115.2kbps), MIR (0.576,1.152Mbps) and FIR(4Mbps). 3) Surface mount type. 4) Power down function built in. 5) Adjustable communication distance by LED load resistance value. zApplications Cellular phone, PDA, DVC, Digital still camera, Printer, Handy terminal etc. zAbsolute maximum ratings (Ta=25°C) Parameter Supply voltage Input voltage Symbol Limits Units 6.5 ∗1 Vcc / VLEDA / VIO Vin(3,4,5pin) V −0.3 to VIO+0.3 V Operation temperature Topr −25 to 85 °C Storage temperature Tstg −30 to 100 °C LED peak current Ifp 400 ∗2 Power dissipation Pd 300 ∗3 mA mW ∗1) This applies to all pins basis ground pin (8pin). ∗2) LED Peak Current : < 90 µs, On duty < 25% ∗3) When glass-epoxy board (70x70x1.6mm) mounted. In case of operating environment is over 25°C, 4mW would be reduced per each 1˚C stepping up. zRecommended operating conditions Parameter Supply voltage Symbol Min. Typ. Max. Units VCC 2.4 3.0 3.6 V VLEDA 2.7 3.0 5.5 V VIO 1.7 3.0 VCC V 1/7 RPM970-H14 Photo Link Module zBlock diagram and application circuit R1 LEDA 2 1 LEDVCC LEDC TXD 3 TXD RXD PWDOWN/Mode PWDOWN /Mode 5 POWER DOWN /Mode VCC AMP 6 AMP 4 RXD 7 VIO VIO GND 8 AMP VCC C1 GND VCC(6pin) and LEDVCC(1pin) can be used on either common power source or different one. 2/7 RPM970-H14 Photo Link Module zTerminal description Pin No Terminal Circuit Function LED Anode Terminal Other power source can be used difference between LEDVCC and VCC. LED current depends on LED load resistance value. Include internal current limiter (max.400mA). 1 1 LEDA LED 2 LED Cathode Terminal 2 LEDC This terminal must be left open. Transmitting Data Input Terminal H:LED radiant (PWDOWN='L') CMOS Logic Level Input. Holding TXD="H"status, LED will be turn off approximately 48 µs. VIO 3 TXD 600k Receiving Data Output Terminal VIO VIO PWDOWN 300k 4 When PWDOWN(5pin)='H', the RXD output will be pulled up to VIO at approximately 300 kΩ. RXD VIO Power-down Control and Mode SettingTerminal H: POWERDOWN 5 PWDOWN /Mode L : OPERATION CMOS Logic Level Input. When input is "H", it will stop the receiving circuit, Pin−PD current and transmitting LED operation. 6 VCC VCC Supply voltage for Transceiver circuits. For preventing from infection, connect a capacitor between GND(8pin). 7 VIO VIO Supply voltage for I / O pins (PWDOWN,RXD,TXD). 8 GND GROUND − Shield Case Connect to Ground. 3/7 RPM970-H14 Photo Link Module zElectrical characteristics (Unless otherwise noted, VCC=3V, VLEDVCC=3V, VIO=3V, Ta=25°C) Symbol Min. Typ. Max. Unit Consumption current 1 Parameter ICC1 400 800 1600 µA PWDOWN=OV, At no input light Consumption current 2 ICC2 PWDOWN=VIO, At no input light Transmission rate(SIR / MIR mode) − 0.01 0.2 µA 9.6 − 1152 kbps Conditions − 4 − Mbps PWDOWN input high voltage VPDH 2/3∗VIO − VIO V PWDOWN input low voltage VPDL 0 − 1/3∗VIO V PWDOWN input high current IPDH −1.0 0 1.0 µA PWDOWN=VIO PWDOWN input low current IPDL −1.0 0 1.0 µA PWDOWN=0V TXD input high voltage VTXH 2/3∗VIO − VIO V TXD input low voltage VTXL 0 − 1/3∗VIO V VIO=1.7 to 3.6 V (VIO < − VCC) TXD input high current ITXH 2.5 5 10 µA TXD=VIO TXD input low current ITXL −1.0 0 1.0 µA TXD=0V LED anode current 1 ILED1 − 170 − mA R1=5.6Ω LED anode current 2 ILED2 180 260 400 mA R1=5.6Ω, VLEDVCC=5.5V RXD output high voltage VRXH VIO−0.4 − VIO V IRXH= −200µA RXD output low voltage VRXL 0 − 0.4 V IRXL=200µA RXD output rise time tRR − 20 − ns CL=15pF RXD output fall time tFR − 20 − ns CL=15pF RXD output pulse width(SIR / MIR) twRXDS 228 380 532 ns CL=15pF, 9.6k to 1.152 Mbps RXD output pulse width(FIR1) twRXDF1 85 125 165 ns CL=15pF, 4 Mbps(125ns pulse) RXD output pulse width(FIR2) twRXDF2 195 250 290 ns CL=15pF, 4 Mbps(250ns pulse) tRT − 100 200 µs Transmission rate(FIR mode) VIO=1.7 to 3.6 V (VIO < − VCC) < Transmitter > < Receiver > Receiver latency time zOptical characteristics (Unless otherwise noted, VCC=3V, VLEDVCC=3V, VIO=3V, Ta=25°C) Parameter Symbol Min. Typ. Max. Unit Peak wave length λP 850 870 900 nm Intensity1 IE1 25 63 200 mW / Sr Half−angle θL / 2 − ±18 − deg Rise time / Fall time Tr / Tf − − 40 ns − − 25 % Optical over shoot Conditions −15 deg < −θL< − 15 deg R1=5.6Ω 10% to 90% Tj −25 − 25 ns TweM 172 217 256 ns Optical pulse width(FIR) TweF 115 125 135 ns Minimum irradiance in angular Eemin − 9 20 µW / cm2 Maximum irradiance in augular Eemax 500 − − mW / cm2 −15 deg < − θL< − 15 deg Input half−angle θD / 2 ±15 − − deg TLEDmax 16 48 120 µs Edge jitter Optical pulse width(MIR) Maximum emitting time tTXD=217ns tTXD=125ns −15 deg < − θL< − 15 deg TXD=VIO 1. This product is not designed for protection against radioactive rays. 2. This product dose not include laser transmitter. 3. This product includes one PIN photo diode. 4. This product dose not include optical load. 4/7 RPM970-H14 Photo Link Module zTiming chart Mode Setting (SIR / MIR / FIR) With RPM970-H14 there is a need for mode switch according to communication rate. For the mode setting, there are “PWDOWN/Mode” and “TXD”. Please see below diagram for the set up of mode. (a) FIR Mode (b) SIR / MIR Mode PWDOWN / Mode PWDOWN / Mode > 200ns ts = > 200ns ts = > 200ns ts = TXD > 200ns ts = TXD tdmax=200µs tdmax=200µs FIR Mode (4Mbps) Mode SIR / MIR Mode (9.6k-1.152Mbps) Mode Fig. 1 zAttached components Part symbol Recommended value 6.8µF, Ceramic or tantalum C1 Ex.)TCFGA1A685M8R (ROHM) 5.6Ω ± 5%, 1/4W (VLEDVCC=3.0V) R1 Notice Bigger capacitance is recommended with much noise from power supply More than 50cm distance, more than 10µW/cm^2 at detecting side. (vs ver1.1) + In case of using R1 with different condition from the above, formula is as follows: LED resistance value : R1 [Ω], LED average consumption current : ILED[mA], Supply voltage : VLEDVCC[V] necessary d[cm] (Including LED's distribution within ± 15 deg) R1=T (VLEDVCC-1.45) / d2 − 5 [Ω] + ILED=Duty (VLEDVCC−1.36) / (R1+4) [A] Duty : LED duty at emitting, T=17000 ∗ At LED / Duty<180mA 5/7 RPM970-H14 Photo Link Module zNotes 1) VLEDVCC (1pin), VCC (6pin) and VIO (7pin) • Other power source can be used difference between VLEDA and VCC and VIO. (VIO < VCC + 0.3V) 2) Caution in designing board lay-out To get maximum potential from RPM970-H14, please keep in mind following instruction. • The line of RXD (4pin) should be connected at backside via through hole close to RPM970-H14 pin lead. Better not to be close to photo diode side (8pin side). ⇒This is to minimize feedback supplied to photo diode from RXD. • The parts which generate noise such as DC / DC converter should be placed at more than a radius of 1.0cm away from photo diode (8pin side). • As for 1 between 6 - 8 pins, it should be placed close to RPM970-H14. 3) Notes • Please be sure to set up the TXD (3pin) input to be “L” (under 0.6V) except transmitting data. (For < 90µ sec. ON duty < 25%). • Powerdown current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode. • Please use by the signal format which is specified by IrDA Ver1.3 (Low Power) except 4 Mbps. There might be on error if used by different signal format. 4) Eye safe • EN60825-1(IEC60825-1 amendment 2), Class1 Eye safe. 5) LEDVCC voltage derating and ambient temperature The relation among LEDVCC peak voltage, LED load resistance (R1) and maximum ambient temperature (Tamax) is shown below. We recommend you to use within the range as indicated in below. a) When LED on-duty 25% 7 Duty=25% 6 22Ω 15Ω LEDVCC (V) 5 4.7Ω 5.6Ω 4 6.8Ω 8.2Ω 10Ω 3 2 1 0 −25 0 25 50 75 100 Ambient Temperature Ta (°C) 6/7 RPM970-H14 Photo Link Module zExternal dimensions (Unit : mm) R1.0 R1.1 8.0 2.2 2.2 PinPD 2.59 A Part Size (Shield Case underside size) 2.2 8 0.37±0.1 0.95 0.75 2.67 1 0.15±0.1 0.76 0.78 0.15±0.1 1.1 1.4 2.8 4.0 A 2.9 1.0 LED P0.95×7=6.65 0.68±0.1 0.48 (0.13) 0.6±0.1 0.6 NOTE 1.TOLERANCE : ±0.2mm 2.COPLANARITY : 0.1mmMAX UNIT : mm ETH396 7/7 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1