INFRARED RECEIVER MODULE
Description
The MIM-3xx7K8 is miniaturized infrared receivers for
remote control and other applications 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.
MIM-3xx7K8
Features
l
l
l
l
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Photo detector and preamplifier in one package
Internal filter for PCM frequency
High immunity against ambient light
Improved shielding against electric field disturbance
3.0-Volt supply voltage; low power consumption
TTL and CMOS compatibility
MIM-3xx7K8 Series Models
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MIM-3337K8 32.7KHz
MIM-3377K8 36.7KHz
MIM-3387K8 37.9KHz
MIM-3407K8 40.0KHz
MIM-3567K8 56.7KHz
BLOCK DIAGRAM
VS
Input
CGA &
filter
Demodulator
μ
C
Oscillator
AGC / ATC & digital
control
GND
REV: A1
Unity Opto Technology Co., Ltd.
12/09/2003
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INFRARED RECEIVER MODULE
Absolute Maximum Ratings
Item
Supply voltage
Supply Current
Operating temperature
Storage temperature
Soldering temperature
Junction Temperature
Symbol
Vs
Is
T
opr
T
stg
T
sd
T
j
Ratings
-0.3 ~ 6.0
2.5
-25 ~ + 85
-25 ~ + 85
260
100
Unit
V
mA
o
o
o
o
MIM-3xx7K8
@ Ta=25
o
C
Remark
C
C
C
C
t≦5 s, 1mm from case
Electro-optical characteristics (Vcc=3.0V)
Parameter
Supply Voltage
Current consumption
Response wavelength
Output form
H level output voltage
L level output voltage
H level output pulse width
L level output pulse width
Distance between emitter & detector
Half angle
V
0
h
V
0
l
Twh
Twl
L
1
∆θ
500
500
10.0
±45
Symbol
Vs
Icc
λp
Min.
2.7
Typ.
3.0
1.1
940
Max.
5.5
2.5
Unit
V
mA
nm
Remarks
Under no signal
- - - - - active low output - - - - -
2.8
3.0
0.2
0.4
800
800
V
V
µs
µs
m
deg
Note 1
Horizonal direction
Test Method
A. Standard Transmitter
ON/OFF pulse width satisfied from 25 cm to detection limit
carrier frequency f
0
duty 50%
600µs
600µs
600µs
Fig 1. Burst Wave
25cm
+5.0V
10kΩ
10µF
10kΩ
Transmitter
Duty 50%
V
out
GND
Oscilloscope
Fig 2. Standard Transmitter Measurement circuit
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Unity Opto Technology Co., Ltd.
12/09/2003
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INFRARED RECEIVER MODULE
B. Detection Length Test
MIM-3xx7K8
θ
Transmitter output
V
out
θ
D.U.T
L
θ:
indicates horizontal and vertical directions
C . Pulse Width Test
Transmitter output
600µs 600µs
DUT output pulse
Twl
Twh
V
0
h
V
0
l
Application Circuit
100Ω*)
Vcc (+3V)
>10kΩ
optional
3
MIM-3xx7K8
MIE-544A2
4.7μF *)
1
2
μC
GND
*) recommended to suppress power supply disturbances
REV: A1
Unity Opto Technology Co., Ltd.
12/09/2003
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INFRARED RECEIVER MODULE
Dimensions in mm
MIM-3xx7K8
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INFRARED RECEIVER MODULE
CHARACTERISTIC CURVES (T
A
=25
o
C)
900
MIM-3xx7K8
Supply Current Icc (mA)
1.4
1.2
1.0
0.8
0.6
Output Pulse Width
800
700
Burst length * 600µs, cycle =
1.2ms tpw: Average value of
output from start of signal input
to 60th pulse
600
500
Input Level V
IN
(mV
P-P
)
400
2
3
4
5
6
7
8
0.1
1
10
100
1000
Supply Voltage Vcc (V)
SUPPLY VOLTAGE vs. SUPPLY CURRENT
Input Level (mV
p-p
)
INPUT LEVEL vs.OUTPUT PULSE WIDTH
Relative Spectral Sensitivity
0∘
15∘
30∘
1
1.0
0.8
45∘
60∘
0.6
75∘
0.4
0.8
0.6
0.4
0.2
0
750
850
950
1050
1150
0.2
0 0.1
0.3
0.5
λ
- Wavelength (nm)
RELATIVE SPECTRAL SENSITIVITY vs
WAVELENGTH
RELATIVE TRANIMISSION
1
Rel. Responsitivity
0.8
0.6
0.4
0.2
0
0.7
0.8
0.9
1
1.1
1.2
1.3
f=fo±5%
Δf(3dB)
= fo/7
f/fo - Relative Frequency
FREQUENCY DEPENDENCE OF
RESPONSIVITY
REV: A1
Unity Opto Technology Co., Ltd.
12/09/2003
5/6
单片机
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