RPM7137-H9R Rohm Semiconductor, RPM7137-H9R Datasheet - Page 22

• 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

• Vcc and Ground Pattern Designing
• Holder Grounding
The Remote Control Receiver Module is highly sensitive in order to receive an infrared signal that
is far away. Although a sufficient countermeasure against power ripples is taken, the user should
take a further countermeasure in preparation for unforeseen malfunctions.
«Good example»
Noise is reduced as
much as possible within
the digital block loop.
Fig. 22 Shield
Digital
GND
V
block
DD
Noise
Fig. 23 Countermeasure against Line Noise
Be sure to connect the holder to the ground pattern.
RPM7100-Hx Series Holderless Model
The Remote Control Receiver Module is highly
sensitive. In order to protect the influence of external
noise, ground the casing.
The installation of a grounded metal shield in the
direction of external noise is effective to avoid the
influence of the external noise.
Receiver Module
Remote Control
GND
GND
V
V
20
CC
CC
Noise
Precautions for Designing Receiver Side
There is little influence because
the common impedance is low.
Increase the occupied ground
area to lower the common
impedance.