RPM7137-H9R Rohm Semiconductor, RPM7137-H9R Datasheet - Page 25

• Manufacturer Part Number: RPM7137-H9R
• Description: Infrared Receivers REMOTE CTRL 36.7KHZ
• Manufacturer: Rohm Semiconductor

Specifications of RPM7137-H9R

• Carrier Frequency: 36.7 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: 36.7kHz
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 1.5mA
• Orientation: Top View
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3) Subcarrier
Remote Control Receiver Module
• Coincidence of Subcarrier
• Constant Duty of Subcarrier
Make sure that the duty of the subcarrier is constant. The discontinuance of the duty may cause
a receiving output pulse split and result in a receiving error.
Make sure that the subcarrier coincides with the center frequency of the Remote Control
Receiver Module, or otherwise the effective distance may be shorter or the Remote Control
Receiver Module may fail to receive the signal.
«Bad Example»
Transmission
waveform
(Good)
Transmission
waveform
(Bad)
Receiving
output
waveform
Transmission
Receiving
The noise cannot be discriminated from the signal.
Receiving is OK
Pulse split
Fig. 27 Single Transmission Pulse
Fig. 28 Duty Discontinuance Period
Noise pulse
23
Pulse split
Measures for Preventing Malfunction
The set will respond to a noise
pulse in the case of the edge
discrimination of a single pulse.