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INFRARED RECEIVER MODULE
● Description
1. The BRM-4070 is miniaturized infrared receivers
for remote control and other applic ations 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
disturbed ambient light applications and provides
protection against uncontrolled output pulses.
● Features
1. Photo detector and preamplifi er 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 cod e,RC5 code.
● Applications:
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
●Package Dimensions:
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.
Preamp Amp
PD
ABLC
Limiter
B.P.F
Integrator Comparator
GND
Vout
Vcc
Demodulator
Ver: 1.0 Page: 1of 5
6.70(.263)
7.2(.283)
4.55(.179)
2.55(.100)
0.4(.015)
5.28(.207)
4.69(.184)
4.55(.179)
30.5± 0.5(1.21)
4.0(.157)
2.55(1.00)
2.54(0.10)
5.38(.211)
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● Absolute Maximum Ratings(Ta=25℃)
● Electrical And Optical Characteristics(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
Ratings
Parameter Symbol Condition Min. Typ. Max. Unit
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 In the range of 45°cone 6 — — m
B.P.F Center Frequency fo — — 38 — KHz
Peak Wavelength λp — — 940 — nm
Half Angle θ — — 45 — deg
High Level Pulse Widt h TH
Specified by the output TH period
within a range from 10cm to the
arrival dista nce (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 dista nce (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
Ver:1.0 Page: 2of 5
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●Application Circuit
TLTH
Oscilloscope
Vout
5.0± 0.1V
Standard
Transmitter 100kΩ
Fig.2 Measuring Method
Measuring Method
20cm >10kΩ
+10uF
600us 600us
GND
Standard
Transmitter
Oscilloscope
D.U.T
Vout
Vout
Fig.3 Measuring System
Vcc
VL
Fig.1 Transmitter Wave Form
Transmitter Output
Infrared
Emitting
Diode
IRM
D.U.T Output Pulse
47uF
GND
Out
Vcc
47Ω
H
V
>10kΩuC
GND
+5V
θ
θ
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● Electrical And Optical Curves(Ta=25℃)
0.0
0.7
0.2
0.4
0.6
0.8
1.0
0.2
off
on
0.1
0.0
0.4
0.6
0.8 0.9 1.0 1.1
0
0
1.2 1.3
101100
off
on
100001000 (mW/cm ) 2
0.8
1.0
(mS)
750
0
0.2
0.6
0.4
0.8
1.0
(%)1.2
1050
850 950 1150 (nm)
100
-40
0
4
8
-20 020 40 60 80
12
16
20
(m)
-30
0.6
0.0
0.4
0.2
0.8
1.0
1.2
1.4
030 60
(° C)
(° C)
90
0.60.3
(mA)2.0
1.6
1.8
0.5
0.8
0.7
0.9
1.0
0.20.1 0.4
10020
90
60
80
70
50
40
30
Fig.4 Relative S pectral Sensitivity vs.
Wavelength
Fig.5 Relative Transmission Distance vs.
Direction
Relative Transmission Distance
Wavelength
Fig.6 Output Pulse Diagram Fig.7 Supply C urrent vs.
Relative Responsitibity
T ,T -Outpu t P ulse Length
=950nm,Optical Tes t S ignal,Fig.8
Irradiance Ambient Temperature
Supply Curren t
Fig.9 Arrival D istance Vs.
Ambient Temperature
Fig.8 Frequency Dependence of Responsivity
Rel. Responsitivity
Relative F requency Ambient Temperature
Transmission Distance
Ambient Temperature
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●Packaging Box Dimensions
● Packaging Bag Dimensions
Notes:
1、250pcs per bag, 2Kpcs per box.
2、All dimensions are in millimeters(inches).
3、Specifications are subject to chan ge without notice.
Ver: 1.0 Page: 5 of 5
