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| Communication ICs Remote control photosensitive IC RPM6900 Series The RPM6900 series are remote control photosensitive units in a compact, lightweight package made from a resin mold. FApplications VCRs, TVs, movies, air conditioners, audio equipment, and other household electrical appliances FFeatures 1) Resin mold package enables a compact size and light weight. 2) Built-in electromagnetic shield. FRPM6900 series models FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions Note: Specifications may change without notice due to improvements in the product. 554 Communication ICs FBlock diagram RPM6900 Series FElectrical, optical characteristics (VCC = 5V, Ta = 25_C) 555 Communication ICs FMeasurement conditions (1) Transmit signal RPM6900 Series (3) Measurement arrival distance, Horizontal & vertical half angle (2) Standard transmitter peak=940nm =40nm Arrival distance L: Arrival distance at = 0_ Fig.4 Horizontal & vertical half angle : The angle which arrival distance became 50% of L. (4) High level, low level output voltage When standard transmitter output the signal at Fig.1 standard photodiode output become io = 5 AP-P under the measurement condition Fig2, Fig.3. RPM-301B: standard photodiode has short current ISC = 27 A at E = 10001x (using CIE standard light source A) 556 Communication ICs FMeasurement circuit RPM6900 Series FRecommended application S Please place filter (resistors and capacitors) as close to the receiver as possible. S In order to stable operation, using serial resistor (47) on power supply line and capacitor (more than 47F) between power supply and GND is recommended. (This reduce influence by switching power supply ripple and ripple which caused by the change of micro controller load and other circuits load.) Without the above circuit, Arrival distance might be less due to noise pulse on output wave. (In case even with the above mentioned value, please change bigger capacitance.) FOperation notes (1) All characteristics of the receiver in this specification are specified by supplying burst wave form with ROHM standard transmitter (Fig.2). If in case of other burst wave form will be used, please check these spec. Carefully under the evaluations. (2) When the receiver will be used as the wire-less remote controller, please use the signal method the signal format which refer to "Measures to prevent miss-functioning of IR remote-controlled electric home appliances". (Published July 1987 by Association of Electric Home Appliances) However, please use the standard pulse width (T) of greater than 0.4ms and less than 0.6ms (0.4ms < T < 0.6ms) If using other signal method, signal format, (ex: signal format which not including the leader signal) the receiver might have chances to miss-function. 557 Communication ICs (3) Please set up transmitter's carrier frequency as same as the receiver's f0 frequency. Otherwise error might be occurred. RPM6900 Series (4) If transmission signal has non-continues carrier, error might be occurred. Continuous carrier is necessary. (5) The receiver was designed to use as in-door use only. Therefore, please understand that the receiver cannot cover all characteristics, in case of using it out-door. (6) Emitting unit (remove control transmitter) has to be considered about its emitting device function, characteristics and characteristics of the receiver. (7) Do not supply unnecessary stress to lead and holder. (8) Please pay careful attention to the lens. It might has a chance to miss-function when the lens get dust or dirty. And also please do not touch the lens. (9) In order to prevent IC from ESD, human body, solder iron, etc are required to be grounded. FElectrical, optical characteristics curves 558 Communication ICs RPM6900 Series FExternal dimensions (Units: mm) 559 |
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