RPM7138-V4R Rohm Semiconductor, RPM7138-V4R Datasheet - Page 5

• Manufacturer Part Number: RPM7138-V4R
• Description: Infrared Receivers REMOTE CTRL 37.9KHZ
• Manufacturer: Rohm Semiconductor

Specifications of RPM7138-V4R

• Carrier Frequency: 37.9 KHz
• Transmission Distance: 15 m
• Viewing Angle: 45 deg, 35 deg
• High Level Pulse Width: 800 us
• Low Level Pulse Width: 800 us
• Minimum High Level Output Voltage: 4.5 V
• Output Current: 2 mA
• Operating Voltage: 4.5 V to 5.5 V
• Supply Current: 0.95 mA
• Maximum Operating Temperature: + 75 C
• Minimum Operating Temperature: - 10 C
• Package / Case: RSIP-A3
• Sensing Distance: 15m
• B.p.f. Center Frequency: 37.9kHz
• Voltage - Supply: 4.2 V ~ 5.5 V
• Current - Supply: 1.5mA
• Orientation: Side View
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Photo Link Module
Please use the receiver with shield case or shield plate as an EMI noise measures.
(Shield case and shield plate are required to be grounded.)
Because internal or external noise (CRT, fluorescent tube, motor, LCD backlight) of the receiver may cause malfunction
like a reduced effective distance.
(In the case of internal and external noise are strong, please use RPM7138-HxR series with holder.)
(1) All characteristics of the receiver in this specification are specified by supplying burst wave form (Fig.1) with ROHM
(2) When the receiver will be used as the wire-less remote controller, please use the signal method the signal format
(3) Please set up transmitter’s carrier frequency as same as the receiver’s f
(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.
(6) Noise environment (Light noise from inverter Lamp, and other kind of Lamps, Power ripple, electromagnetic noise from
(7) The receiver may not work properly if receiving signal judgment is done by single pulse due to the
(8) Emitting unit (remote control transmitter) has to be considered about its emitting device function, characteristics and
(9) Please connect ‘Holder’ on to the ‘Ground (GND)’ of PCB. If the holder is not connected to the GND, there is a
(10) Do not supply unnecessary stress to lead.
(11) Please pay careful attention to the lens.
(12) In order to prevent products from ESD, human body and solder iron, etc. are required to be grounded.
How to use the receiver without holder
Notes
If in case of other burst wave form will be used, please check these spec. Carefully under the evaluations.
which refer to “Measures to prevent malfunctioning of IR remote-controlled electric home appliances”. (Published July
1987 by Association of Electric Home Appliances)
If using other signal method, signal format, (ex: signal format which not including the leader signal) the receiver might
have chances to miss-function.
occurred.
Therefore, please understand that the receiver cannot cover all characteristics, in case of using it out-door.
power circuit, and etc) may cause a reduced effective distance.
surrounding / environmental noises.
To prevent such misjudgment, please make sure that the receiver is set up to work only when receiving
series of coded signal.
characteristics of the receiver.
possibility of worsening the characteristics of product.
It might have a chance to miss-function when the lens get dust or dirty. And also please do not touch the lens.
standard transmitter (Fig.2 ).
0
frequency. Otherwise error might be
T1
RPM7138-R series
T1≠T2
T2
Rev.B
5/7