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| BRIGHT LED ELECTRONICS CORP. SINCE 1981 BRM-1420 INFRARED RECEIVER MODULE Description 1. The BRM-1420 is miniaturized infrared receiver for remote control and other applications requiring improved ambient light rejection. 2. The separate PIN diode and preamplifier IC are assembled on a single lead frame. 3. The epoxy package contains a special IR filter. 4. This module has excellent performance even in 7.98(.314) 7.06(.279) 4.5(.177) 7.4(.291) 3.7(.146) 4.65(.183) 3.45 Package Dimensions: disturbed ambient light applications and provides protection against uncontrolled output pulses. Features 1. 2. 3. 4. 5. 6. 7. Photo detector and preamplifier in one package . Internal filter for PCM frequency. High immunity against ambient light. Improved shielding against electric field disturbance. 3.0V or 5.0V supply voltage; low power consumption. TTL and CMOS compatibility. Suitable transmission code: NEC code,RC5 code. 2.54 2.54 2.5(.098) 0.50(.02) 0.4(.016) 8. This product doesn't contain restriction substance, comply ROHS standard Applications: 1. It can be used for TVsVTRsaudio equipment air conditioners car stereo radiotoys home computers and all other equipment requiring remote control. NOTES: 1.All dimensions are in millimeters (inches). 2.Tolerance is 0.10mm (0.004'') unless otherwise specified. 3.Specifications are subject to change without notice. BLOCK DIAGRAM 5.42(.213) Vcc Vout B.P.F PD ABLC Demodulator Preamp Amp Limiter Integrator Comparator GND Ver.2.0 Page 1 of 5 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BRM-1420 Absolute Maximum Ratings(Ta=25) Parameter Supply Voltage Operating Temperature Storage Temperature Soldering Temperature Symbol Vcc Topr Tstg Tsol Ratings 2.7~5.5 -30~+65 -40~+85 260 Unit V Notice -- -- -- 4mm from mold body less than 5 sec Electrical And Optical Characteristics(Ta=25) Parameter Supply Voltage Supply Current Symbol Vcc Icc Condition DC voltage No signal input At the ray axis Min. 2.7 -- 12 6 -- -- -- Ratings Typ. Max. -- -- -- -- 36.7 940 45 5.5 1.5 -- Unit V mA Reception Distance B.P.F Center Frequency Peak Wavelength Half Angle L In the range of 45cone fo p -- -- -- Specified by the output TH period within a range from 10cm to the arrival distance (average value of 50 pulses) Specified by the output TL period within a range from 10cm to the arrival distance (average value of 50 pulses) 10cm over the ray axis 10cm over the ray axis -- -- -- -- m KHz nm deg High Level Pulse Width TH 400 -- 800 S Low Level Pulse Width TL VH VL 400 -- 800 S V V High Level Output Voltage Low Level Output Voltage 4.5 -- -- -- -- 0.5 Ver.2.0 Page 2 of 5 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BRM-1420 Application Circuit 47 Infrared Emitting Diode IRM Vcc Out GND 47uF >10k uC GND +5V Fig.1 Transmitter Wave Form Transmitter Output D.U.T Output Pulse VH TL TH VL 600us 600us Fig.2 Measuring Method Measuring Method 20cm >10k 5.0 0.1V Fig.3 Measuring System + 10uF Standard Transmitter Standard Transmitter Vcc D.U.T GND Vout 100k Vout Oscilloscope Vout Oscilloscope Ver.2.0 Page 3 of 5 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BRM-1420 Electrical And Optical Curves(Ta=25) Fig.5 Relative Transmission Distance vs. Direction 0 10 20 30 1.0 Fig.4 Relative Spectral Sensitivity vs. (%) 1.2 Wavelength Relative Responsitibity 0.8 1.0 40 0.6 0.9 0.8 50 60 70 0.4 0.2 0.7 80 90 0 750 850 950 1050 1150 (nm) 0.5 0.3 0.1 0.2 0.4 0.6 Wavelength Relative Transmission Distance (mS) 1.0 Fig.6 Output Pulse Diagram (mA) 2.0 1.8 Fig.7 Supply Current vs. Ambient Temperature 0.8 on 1.6 1.4 Ton ,Toff -Output Pulse Length Supply Current 10000 (mW/cm ) 2 0.6 off 1.2 1.0 0.8 0.6 0.4 0.4 0.2 =950nm,Optical Test Signal,Fig.8 0.2 0.0 0.1 0.0 -30 0 30 60 1 10 100 1000 90 ( C) Irradiance Ambient Temperature Fig.8 Frequency Dependence of Responsivity 1.0 (m) 20 Fig.9 Arrival Distance Vs. Ambient Temperature 0.8 16 Transmission Distance 0 0.6 12 Rel. Responsitivity 0.4 8 0.2 0 4 0.0 0.7 0 0.8 0.9 1.0 1.1 1.2 1.3 -40 -20 0 20 40 60 80 100 ( C) Relative Frequency Ambient Temperature Ver.2.0 Page 4of 5 BRIGHT LED ELECTRONICS CORP. SINCE 1981 BRM-1420 Packaging Box Dimensions Packaging Bag Dimensions Notes: 1250pcs per bag, 3Kpcs per box. 2All dimensions are in millimeters(inches). 3Specifications are subject to change without notice. Ver.2.0 Page 5of 5 |
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