Description Package Dimensions
The MIM-R1AA38 series are 37.9 KHZ miniaturized
infrared receivers for remote control and other
appplications requiring improved ambient light rejection.
The separate PIN diode and preamplifier IC are
assembled on a single leadframe.
The epoxy package contains a special IR filter.
This module has excellent performance even in disturbed
ambient light applications and provides protection
against uncontrolled output pulses.
Features
l Photo detector and preamplifier in one package
l Internal filter for PCM frequency
l High immunity against ambient light
l Improved shielding against electric field disturbance
l 5-Volt supply voltage; low power consumption
l TTL and CMOS compatibility
MIM-R1AA38
9.2±0.5
Unit: mm
CENTER OF SENSOR
BLOCK DIAGRAM
GND
Vcc
Vout
TRAP BPF
0.65
Notes :
1. Tolerance is ± 0.25 mm (.010") unless otherwise noted.
2. Lead spacing is measured where the leads emerge from the package.
0.8max.
0.5±0.050
V
TRIMMING
GND
S
Unity Opto Technology Co., Ltd.
P1
Absolute Maximum Ratings
Item Symbol Ratings Unit Remark
Supply voltage V
Operating temperature T
Storage temperature T
Soldering temperature T
5.8 V
-10 ~ + 60 °C
-20 ~ + 75 °C
260 °C Maximum 5 seconds
Electro-optical characteristics (VCC=5V)
Parameter Symbol Min. Typ. Max. Unit Remarks
Current consumption Icc 5.0 mA Under no signal
Response wavelength p 940 nm
Tuning frequency
f
0
37.9
KH
Z
Output form - - - - - active low output - - - - -
H level output voltage V0h 4.2 V
L level output voltage V0l 0.5 V
H level output pulse width Twh 400 800
L level output pulse width Twl 400 800
Distance between emitter &detector
L 10.0 m Note 1
s
s
Half angle ±16 ±55 deg Horizonal direction
Test Method
A. Standard Transmitter
ON/OFF pulse width satisfied from 20 cm to detection limit
carrier frequency f
duty 50%
Unity Opto Technology Co., Ltd.
0
600µs
Fig 1.Burst Wave
20cm
10kΩ
Transmitter
Duty 50%
Ω
10k
Fig 2.Standard Transmitter Measurement circuit
+5v
V
Oscilloscope
P2