BRIGHT LED ELECTRONICS CORP. BRM-1020-NS SINCE 1981 INFRARED RECEIVER MODULE ● Description 1. The BRM-1020-NS is miniaturized infrared receiver ●Package Dimensions: for remote control and other applications requiring improved ambient light rejection. 2. The separate PIN diode and preamplifier IC are 6.5(.256) assembled on a single lead frame. 2.5(.098) 3.25(.128) 4. This module has excellent performance even in disturbed ambient light applications and provides 3.5(.138) 7.4(.291) 7.5(.295) 3. The epoxy package contains a special IR filter. 1.8(.071) 3.0(.118) protection against uncontrolled output pulses. ● Features 1. Photo detector and preamplifier in one package . 2. Internal filter for PCM frequency. 3. High immunity against ambient light. 4. Improved shielding against electric field disturbance. 5. 3.0V or 5.0V supply voltage; low power consumption. 6. TTL and CMOS compatibility. 7. Suitable transmission code: NEC code,RC5 code. 18.5(.728) ± 0.25 3.2(.126) 0.5(.020) 2.54(.10) ● Applications: 0.4(.016) 2.54(.10) 2.0(.079) 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. 1. It can be used for TVs、VTRs、audio equipment air conditioners、 car stereo radio、toys、 home computers and all other equipment requiring remote control. ● BLOCK DIAGRAM Vcc Preamp Amp Vout Limiter B.P.F Demodulator Integrator PD Comparator GND ABLC REV: 1.0 Page: 1of 4 BRIGHT LED ELECTRONICS CORP. BRM-1020-NS SINCE 1981 Absolute Maximum Ratings(Ta=25℃) Parameter Symbol Ratings Unit Notice Supply Voltage Vcc 2.7~5.5 V — Operating Temperature Topr -30~+65 ℃ — Storage Temperature Tstg -40~+85 ℃ — Soldering Temperature Tsol 260 ℃ 4mm from mold body less than 5 sec Electrical And Optical Characteristics(Ta=25℃) Parameter Ratings Min. Typ. Max. Unit Symbol Condition Supply Voltage Vcc DC voltage 2.7 — 5.5 V Supply Current Icc No signal input — — 1.5 mA At the ray axis 12 — — Reception Distance L m In the range of 45°cone 6 — — B.P.F Center Frequency fo — — 38 — KHz Peak Wavelength λp — — 940 — nm Half Angle θ — — 45 — deg TH Specified by the output TH period within a range from 10cm to the arrival distance (average value of 50 pulses) 400 — 800 µS Low Level Pulse Width TL Specified by the output TL period within a range from 10cm to the arrival distance (average value of 50 pulses) 400 — 800 µS High Level Output Voltage VH 10cm over the ray axis 4.5 — — V Low Level Output Voltage VL 10cm over the ray axis — — 0.5 V High Level Pulse Width REV: 1.0 Page: 2of 4 BRIGHT LED ELECTRONICS CORP. BRM-1020-NS SINCE 1981 Application Circuit 47Ω IRM Infrared Emitting Diode +5V Vcc Out >10kΩ 47uF uC GND GND Fig.1 Transmitter Wave Form Transmitter Output D.U.T Output Pulse VH TL TH VL 600us 600us Fig.3 Measuring System Fig.2 Measuring Method Measuring Method 20cm >10kΩ 5.0± 0.1V + 10uF Standard Transmitter 100kΩ Standard Transmitter Vout Oscilloscope θ θ Vcc D.U.T GND Vout Vout Oscilloscope REV: 1.0 Page: 3 of 4 BRIGHT LED ELECTRONICS CORP. BRM-1020-NS SINCE 1981 Electrical And Optical Curves(Ta=25℃) Fig.5 Relative Transmission Distance vs. Direction Fig.4 Relative Spectral Sensitivity vs. Wavelength (%) 1.2 0 10 20 30 Relative Responsitibity 1.0 0.8 1.0 40 0.6 0.9 50 0.4 0.8 60 0.2 0.7 70 80 90 0 750 850 0.5 1150 (nm) 1050 950 Fig.6 Output Pulse Diagram (mS) 1.0 0.3 0.1 0.2 0.4 0.6 Relative Transmission Distance Wavelength (mA) 2.0 Fig.7 Supply Current vs. Ambient Temperature 1.8 1.6 on 1.4 Supply Current Ton ,Toff -Output Pulse Length 0.8 0.6 off 0.4 0.2 1.2 1.0 0.8 0.6 0.4 =950nm,Optical Test Signal,Fig.8 0.2 0.0 0.1 1 10 100 1000 10000 (mW/cm ) 0.0 2 -30 90 (° C) 60 Fig.9 Arrival Distance Vs. Ambient Temperature Fig.8 Frequency Dependence of Responsivity (m) 1.0 20 16 Transmission Distance 0.8 0.6 Rel. Responsitivity 30 0 Ambient Temperature Irradiance 0.4 0.2 0 12 8 4 0 0.0 0.7 0 0.8 0.9 1.0 1.1 Relative Frequency 1.2 1.3 -40 -20 0 20 40 60 80 100 (° C) Ambient Temperature REV: 1.0 Page: 4 of 4