RPM841-H16 Photo Link Module IrDA Infrared Communication Module RPM841-H16 RPM841-H16 is an infrared communication module for IrDA Ver. 1.2 (Low Power). The infrared LED, PIN photo diode, LSI are all integrated into a single package. This module is designed with power down function and low current consumption at stand-by mode. The ultra small package makes it a perfect fit for mobile devices. zFeatures 1) Infrared LED, PIN photo diode, LED driver & Receiver frequency formation circuit built in. Improvement of EMI noise protection because of Shield Case. 2) Applied to SIR (2.4 to 115.2kbps) 3) Surface mount type. 4) Power down function built in. 5) Super small package (W=6.8mm, D=1.7mm, H=2.28mm). 6) Infrared remote control transmission driver built-in. zApplications Mobile phone, PDA, DVC, Digital Still Camera, Printer, Handy Terminal etc. zAbsolute maximum ratings (Ta=25°C) Parameter Supply voltage Input voltage Symbol Unit Limits 7.0 Vmax Vin (3, 4, 5pin) ∗ V −0.3 to VCC+0.3 V Operation temperature Topr −30 to +85 °C Storage temperature Tstg −40 to +100 °C ∗ This applies to all pins basis ground pins (7pin) zRecommended operating conditions (Ta=25°C) Parameter Supply voltage LED supply voltage Symbol Min. Typ. Max. Unit VCC 2.4 3.0 3.6 V VLEDVCC 2.6 3.0 5.5 V Rev.B 1/9 RPM841-H16 Photo Link Module 1 zBlock diagram and application circuit LEDA (LEDVCC) 2 3 TXD 4 RXD 5 PWDOWN 6 POWER DOWN TX-RC VCC 7 AMP TX-RC TXD RXD PWDOWN + AMP AMP AMP R1 GND VCC GND C1 VCC (6pin) and LEDVCC (1pin) can be used on either common power source or different one Rev.B 2/9 RPM841-H16 Photo Link Module zTerminal description Pin No Terminal Circuit LEDA LED Function 1 1 LED ANODE Terminal Other power source can be used difference between LEDVCC and VCC. VCC 2 RC Transmitting Data Input Terminal H : LED Emitting (Remote Control Mode) CMOS Logic Level Input Holding TX-RC='H' status, LED will be turn off approximately 48µs. TX-RC 240k VCC 3 Transmitting Data Input Terminal TXD input at PWDOWN=L H : LED Emitting CMOS Logic Level Input Holding TXD="H" status, LED will be turn off approximately 48µs. TXD 240k VCC PWDOWN 4 RXD 300k VCC 5 PWDOWN 6 VCC 7 GND − Shield Case Receiving Data Output Terminal CMOS Logic Level Output When PWDOWN (5pin)= 'H', the RXD output will be pulled up to VCC at approximately 300kΩ. Power-down Control Terminal H : POWERDOWN L : OPERATION CMOS Logic Level Input When input is 'H', it will stop the receiving circuit and Pin-PD current. Power Supply Terminal For preventing from infection, connect a capacitor between VCC (6pin) and GND (7pin). Ground Termianl Connect to Ground. Rev.B 3/9 RPM841-H16 Photo Link Module zElectrical characteristics (Unless otherwise noted, VCC= 3.0V, VLEDVCC=3.0V, Ta=25°C) Parameter Symbol Min. Typ. Max. Unit Consumption current1 ICC1 − 90 120 µA PWDOWN=0V At no input light Consumption current2 ICC2 PWDOWN=VCC At no input light Data rate − 0.01 0.2 µA 2.4 − 115.2 kbps Conditions PWDOWN input high voltage VPDH 2/3∗VCC − VCC V VCC=2.4 to 3.6V PWDOWN input low voltage VPDL 0 − 1/3∗VCC V VCC=2.4 to 3.6V PWDOWN input high current IPDH −1.0 0 1.0 µA PWDOWN=VCC PWDOWN input low current IPDL −1.0 0 1.0 µA PWDOWN=0V TXD input high voltage VTXH 2/3∗VCC − VCC=2.4 to 3.6V VTXL 0 − VCC 1/3∗VCC V TXD input low voltage V VCC=2.4 to 3.6V TX-RC input high voltage VTX-RCH 1.5 − VCC V VCC=2.4 to 3.6V TX-RC input low voltage VTX-RCL 0 − 0.5 V VCC=2.4 to 3.6V <Transmitter> TXD/TX-RC input high current ITXH 6.2 12.5 25 µA TXD=VCC or TX-RC=VCC TXD/TX-RC input low current ITXL −1.0 0 1.0 µA TXD=0V or TX-RC=0V LED anode current (IrDA Mode) ILEDA1 − 50 70 mA TXD=VCC LED anode current (RC Mode) ILEDA2 − 211 245 mA TX-RC=VCC, R1=2.2Ω RXD output high voltage VRXH VCC−0.4 − VCC V IRXH= −200µA RXD output low voltage VRXL 0 − 0.4 V IRXL=200µA tRR − 25 100 ns CL=15pF <Receiver> RXD output rise Time RXD output fall Time RXD output pulse width Receiver latency time tFR − 25 100 ns CL=15pF twRXD 1.7 2.6 3.5 µs CL=15pF, 2.4 to 115.2kbps tRT − 40 200 µs zOptical characteristics (Unless otherwise noted, VCC= 3.0V, VLEDVCC=3.0V, Ta=25°C) Parameter Symbol Min. Typ. Max. Unit 880 888 892 nm ILED=50mA, Duty20% Conditions Peak wave length1 (IrDA Mode) λP1 850 − 900 nm ILED=50mA, Duty20%, −20 to 60°C Peak wave length2 (RC Mode) λP2 880 890 920 nm ILED=200mA, Duty20% Intensity1 (IrDA Mode) IE1 4 12 28 mW/sr −15° θL 15° R1=2.2Ω −15° θL 15° R1=2.2Ω Intensity2 (RC Mode) IE2 25 50 120 mW/sr Half-angle θL/2 ±15 − − deg Optical pulse width1 (IrDA Mode) TWLED1 1.42 1.63 2.02 µs TXD=1.63µs pulse input R1=2.2Ω Optical pulse width2 (RC Mode) TWLED2 9.5 10 10.5 µs TX-RC=10µs pulse input R1=2.2Ω − 20 120 ns 10% to 90% − − 25 % Rise time / Fall time Tr/Tf Optical over shoot Tj −40 − 40 ns Minimum Irradiance in angular Eemin − 4.0 8.1 µW/cm2 −15° θL +15° Maximum Irradiance in angular Eemax 500 − − mW/cm2 −15° θL +15° θD/2 ±15 − − deg TLEDmax 20.5 48 96 µs Edge jitter Input half-angle Maximum emitting time TXD=0 VCC or TX-RC=0 VCC 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. Rev.B 4/9 RPM841-H16 Photo Link Module zLED Operation Mode Table PWDOWN (5pin) TX-RC (4pin) TXD (7pin) LED Emitting Mode IrDA Receiver Operation Condition L L L OFF ON L L IrDA ON L RC ON L OFF OFF OFF OFF RC OFF L H L H L H L Notes) Please be sure to set up the TX-RC (2pin) and the TXD (3pin) input to be ''L'' (under 0.3V) except transmitting data (for < 90µs. ON Duty 50%). of TX-RC (2pin) and TXD (3pin) in the table above is supposed to be the pulse input. When either TX-RC (2pin) input TXD (3pin) input keeps the state of ''H'' (more than appproximately 48µs), LED will be turned off due to LED pulse width limiting circuit if the pulse is input from the other terminal. Therefore, don't use as the normal transmitting is impossible. Please input the pulse when both TX-RC (2pin) and TXD (3pin) are ''L''. Even if RPM841-H16 input H pulse into TXD in the state of a power down, LED does not emanate. zInterface operating timing (Emitting side) (1) When TXD output for IrDA and TXD output for controller are different lines. 1 LEDA LEDVCC RC Transmitting Controller (BU787X etc) TX-RC TXD IrDA RXD Controller PWDOWN VCC VCC GND 7 Rev.B 5/9 RPM841-H16 Photo Link Module (2-a) RC transmitting mode at IrDA receiver active condition. Input Condition PWDOWN TX-RC TXD LED Mode Recriver circuit L L L OFF ON L L IrDA ON L RC ON L OFF OFF L H L TX-RC (2pin) Min 1µs Min 1µs TXD (3pin) PWDOWN (5pin) LED Emitting Emitting Mode RC IrDA IrDA RC ∗If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs. Rev.B 6/9 RPM841-H16 Photo Link Module (2-b) RC transmit mode at IrDA receiver power down condition. Input Condition PWDOWN TX-RC TXD LED Mode Recriver circuit L L L OFF ON IrDA ON L RC OFF L OFF OFF L L H H L Min 1µs TX-RC (2pin) Min 1µs Min 1µs Min 1µs TXD (3pin) PWDOWN (5pin) LED Emitting Emitting Mode IrDA RC RC IrDA ∗If TX-RC or TXD input pulse width is wider than 48µs, output LED emitting pulse will be turn off approximately 48µs. (Receiving side) Light input Min 200µs PWDOWN (5pin) RXD (4pin) Pull up to VCC at approximately 300kΩ ∗RXD output width is fixed approximately 2.6µs. Note RXD output become stable after 200µs since PWDOWN is changed from H to L. RXD output could be unstable at H to L within 200µs. Rev.B 7/9 RPM841-H16 Photo Link Module zAttached components Recommended values Part symbol Recommended value Notice C1 1µF, tantalum or ceramic Ex.) TCFGA1A105M8R (ROHM) Bigger capacitance is recommended with much noise from power supply R1 2.2Ω±5%, 1/8W (VLEDVCC=3V) At LED Emitting Duty=25% [LED current set-up method for Remote control mode] 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], minimum necessary of irradiant intensity le1 [mW / sr] (Including LED’s distribution within ±15deg) R1=166 × (VLEDVCC−1.31) / le1−7.2 ILED=Duty × (VLEDVCC−1.31) / (R1+5.8) Duty : LED duty at emitting ∗ Please set up to be ILED / Duty < 250[mA] (Duty ≤ 25%) ∗ At IrDA Mode, LED current is constantly approximately 50mA. (Reference) In case of using R1, typical intensity (le1typ) and maximum intensity (le1max) on axis are described as below. le1typ=280 × (VLEDVCC−1.31) / (R1+5.8) le1max=560 × (VLEDVCC−1.31) / (R1+5.8) zNotes 1) LEDVCC (1pin), VCC (6pin) • Other power source can be used difference between LEDVCC and VCC. 2) Caution in designing board lay-out To get maximum potential from RPM841-H16, please keep in mind following instruction. • The line of RXD (4pin) should be connected at backside via through hole close to RPM841-H16 pin lead. Better not to be close to photo diode side (7pin). ⇒This is to minimize feedback supplied to photo diode from RXD. • As for C1 between 6-7 pin should be placed close to RPM841-H16. • Better to be placed more than 1.0cm in radius from photo diode (pin7 side) and also away from the parts which generates noise, such as DC / DC converter. 3) Notes • Please be sure to set up the TX-RC (2pin) and the TXD (3pin) input to be “L” (under 0.3V) except transmitting data (for < 90µs, ON duty ≤ 50%). • Power down current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode. • Please use by the signal format at IrDA operating mode which is specified by IrDA Ver1.2 (2.4k to 115.2kbps). There might be on error if used by different signal format. • Please pay attention to the lens carefully. Dusts of scratch on the lens may effect the characteristics of product. Please handle it with care. Rev.B 8/9 RPM841-H16 Photo Link Module 4) Eye safe • IEC60825-1 (IEC60825-1 amendment2), Class 1 Eye Safe. 5) LED current derating and amdient temperature The relation between LED peak current and maximum ambient temperature is shown below. We recommend you to use within the range as indicated in below. MAXIMUM LED PEAK CURRENT : Iledp (mA) When glass-epoxy board (50×50×1.6mm) mounted. 300 250 200 Duty:25% Duty:20% 150 Duty:15% 100 Duty:10% 50 0 −20 0 20 40 60 80 100 AMBIENT TEMPERATURE : Ta (°C) zDimensions (Unit : mm) RPM841-H16 6.8 MOUNTING CENTER 2.3 1.7 1.54 0.35 0.88 0.8 1pin 0.37±0.1 0.95 P0.95x6=5.7 7pin 2.13 0.08MAX COPLANARITY 1.95 1.08 1.0 R0.9 PD 4-φ0.3 LED STAND OFF 0.05±0.05 0.4 3.4 2.38 0.35 R0.83 NOTE 1.TOLERANCE:±0.2 UNIT:mm ETH949 Rev.B 9/9 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