Optic receiver module
KSM-90 LM
The KSM-90 LM consist of a PIN Photodiode of high
speed and a preamplifier IC in the package as an receiver
for Infrared remote control systems
DIMENSIONS
Features
Wide angle design
Supply-voltage range : 4.5V to 5.5V
Shielded against electrical field disturbance
Enhanced immunity against ambient light disturbances
Available for carrier frequencies between 32.7KHz to 56.9KHz
TTL and CMOS compatible
Applications
Audio & Video Applications (TV, VTR, Audio, DVDP, CDP)
Home Appliances (Air conditioner, Computer, Camcoder)
Wireless Toys
Remote Control Equipment
Maximum Ratings
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Soldering Temperature
Symbol
Vcc
Topr
Tstg
Tsol
Ratings
6.0
-10 ~ +60
-20 ~ +75
260
(Max 5 sec)
[Ta=25℃]
Unit
V
℃
℃
℃
B.P.F Center Frequency
Model No.
KSM-901LM
KSM-902LM
KSM-903LM
KSM-904LM
KSM-905LM
B.P.F Center Frequency(kHz)
40.0
36.7
37.9
32.7
56.9
[Ta=25℃, Vcc=5.0V]
Max.
Unit
5.5
V
mA
2.5
nm
-
kHz
-
-
m
-
-
V
0.5
700
700
V
㎲
㎲
Electro-Optical Characteristics
Parameter
Recommended Supply Voltage
Current Consumption
Peak Wavelength
*1
B.P.F Center Frequency
Transmission Distance
High level Output voltage
Low level Output voltage
*1
*1
*1
Symbol
Vcc
Icc
λp
fo
L
V
OH
V
OL
T
WH
T
WL
Condition
No signal input
Min.
4.5
-
-
-
15
12
4.5
-
500
Typ.
5
1.2
940
37.9
-
-
5.0
0.1
600
250±50lx
30cm over
the ray axis
0˚
±30˚
High level Output Pulse Width *1
Low level Output Pulse Width *1
Output Form
Burst wave=600㎲
Period = 1.2
ms
500
600
Active Low Output
*1. It specifies the maxmum distance between emitter and detector that the output wave form satisfies the standard under the conditions
below against the standard transmitter.
1) Measuring place
: Indoor without extreme reflection of light
high frequency lightning
3) Standard transmitter : Burst wave of standard transmitter shall be arranged to 50mVP-P under the measuring circuit
2) Ambient light source : Detecting surface illumination shall be irradiate 200±50lx under ordinary white fluorescence lamp without
1/2
Optic receiver module
KSM-90□ LM
■
Measuring Method
[Ta=25℃]
Output Pulse Width
Transmitter output
Carrier Frequency(fo)
Duty50%
Remocon output pulse
Standard Transmitter
Test Method of Transmission Distance
+5V
600us 600us
Standard
Tansmitter
10㏀
Vout
Transmitter
10㏀
10㎌
Vout
Arrival Distance : L
OSC
Vcc
GND
:
Indicates horizontal and
vertical directions
T
WL
V
H
T
HL
25Cm
V
I
■
Typical Characteristics Curve
[Ta=25℃]
Relative reception distance Vs.
Supply voltage
Relative reception distance
120
[%]
100
80
60
40
20
0
4.5
5.0
5.5
Relative reception distance Vs.
Ambient temperature
120
[%]
100
80
60
40
20
0
Radiant pattern
Relative reception distance
20
˚
40
˚
60
˚
0
˚
-20
˚
-40˚
-60
˚
80
˚
0
100
˚
100
-10
0
10
20
30
40
50
-80
˚
50
50
-100
˚
100
[V]
[
℃
]
Supply voltage Vcc
Ambient temperature Ta
Relative Sensitivity (%)
■
Standard Application Circuit with R-C Decoupling
Filter
R
Transmitter
Receiver
Module
Vcc
Vout
GND
*1 Recommended Circuit Description
1) Transmitter(IRED) drive current
: IFP = 300mA
P-P
~ 600mA
P-P
2) R-C Decoupling Filter with Lower Cut-off Frequency
: R=100Ω , C=47㎌
: 10㏀ over
⇒
fc = 1/2π RC = 33.9Hz
3) External pull-up resistor(optional)
Vcc
C
Rp
micom
GND
2/2
京公网安备 11010802033920号
EEWORLD
