IS1U621 [SHARP]
Sensors for Remote Control; 传感器用于远程控制![IS1U621](http://pdffile.icpdf.com/pdf1/p00024/img/icpdf/IS1U621_125451_icpdf.jpg)
型号: | IS1U621 |
厂家: | ![]() |
描述: | Sensors for Remote Control |
文件: | 总5页 (文件大小:49K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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IS1U621/IS1U621L
Sensors for Remote Control
IS1U621/IS1U621L
(Unit : mm)
■ Features
■ Outline Dimensions
1. Compact
IS1U621
(Volume : About 1/8 compared with GP1U58X)
2. High sensitivity (Ultimate distance : MIN. 8 m)
3. B.P.F. (Band Pass Frequency) center frequency : (TYP. 38kHz)
3.5 3.5
3.4 3.4
2.9 3.6
■ Applications
1. Audio equipment
2. Cameras
+ 0.2
- 0.1
0.4
1.0
0.5
2.54
2.54
1
2
3
V
OUT
GND
1
2
3
V
*
Tolerance : ± 0.2 mm
CC
IS1U621L
3.5 3.5
3.4 3.4
2.9 3.6
(Ta=25˚C)
■ Absolute Maximum Ratings
Parameter
Supply voltage
*1Operating temperature
Symbol
VCC
Rating
0 to 6.0
- 10 to + 60
- 20 to + 70
260
Unit
V
Topr
Tstg
˚C
1
2
3
Storage temperature
*2Soldering temperature
˚C
Tsol
˚C
2.1
1.5
*1 No dew condensation is allowed.
±
1.0
15.2
*2 For 5 seconds at the position of 4.2 mm from the resin edge
1
2
3
V
OUT
GND
V
CC
*
Tolerance : ± 0.2 mm
4.2mm
3.1mm
Soldering area
Soldering area
■ Recommended Operating Conditions
Recommended
Parameter
Symbol
VCC
Unit
V
operating conditions
4.7 to 5.3
Operating supply voltage
“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,
data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”
IS1U621/IS1U621L
(Ta=25˚C, Vcc =+5V)
■ Electrical Characteristics
Parameter
Dissipation current
Symbol
ICC
Conditions
No input light, Output terminal OPEN
*3, Output terminal OPEN
*3, *4
MIN.
-
TYP.
MAX.
4.5
-
Unit
mA
V
2.8
High level output voltage
Low level output voltage
High level pulse width
Low level pulse width
B.P.F. center frequency
*5 Linear ultimate distance
VOH
VOL
T1
VCC
-
0.2
-
-
0.45
0.6
800
800
-
V
400
400
-
-
-
µ s
µ s
kHz
m
*3
T2
fO
-
38
-
L
Ee < 10 lx
8.0
-
*3 The burst wave as shown in the following figure shall be transmitted.
*4 Pull-up resistance : 2.2kΩ
*5 By SHARP transmitter
fo= 38kHz, Duty 50%
Transmission
signal
600µs
600µs
Output
T2
T1
■ Internal Block Diagram
Vout
Limiter
B.P.F.
Demodulator Integrator Comparator
Vcc
GND
IS1U621/IS1U621L
■ Performance
Using the transmitter shown in Fig. 1, the output signal of the light detecting unit is good enough to meet the following items in the standard optical system in Fig. 2.
(1) Linear reception distance characteristics
When L=0.2 to 8 m, Ee < 10 lx ( *6) and φ =0˚ in Fig. 2, the output signal shall meet the electrical characteristics in the attached list.
(2) Sensitivity angle reception distance characteristics
When L=0.2 to 5 m, Ee < 10 lx ( *6) and φ<= 30 ˚ in the direction X and θ =0˚ in the direction Y in Fig. 2,
the output signal shall meet the electrical characteristics in the attached list. Further, the electrical characteristics shall be met
when L=0.2 to 5 m, Ee < 10 lx (*6) and φ =0˚ in the direction X and θ<= 15˚ in the direction Y.
*6 It refers to detector face illuminance.
20cm
10kΩ
+ 5V
Transmitter (GL521 used)
Duty 50%
f
o = 38kHz
Vout
Oscilloscope
Fig. 1 Transmitter
In the above figure, the transmitter should be set so that the output Vout can be 40mVP -
.
P
However, the PD49PI to be used here should be of the short-circuit current ISC =2.6 µ A at Ev=100 lx.
(Ev is an illuminance by CIE standard light source A (tungsten lamp).)
Direction Y
Direction X
External disturbing light
detector face illuminance : Ee
θ, φ
θ, φ
Vout
Reception distance : L
Transmitter
φ : Direction X
θ : Direction Y
Fig. 2 Standard optical system
IS1U621/IS1U621L
Fig. 1 B.P.F. Frequency Characteristics (TYP.)
Fig. 2 Sensitivity Angle (Direction X)
Characteristics (TYP.) for Reference
-
20˚
-
10˚
0˚
10˚
20˚
- 30˚
30˚
- 40˚
- 50˚
40˚
50˚
50
- 60˚
- 70˚
60˚
70˚
- 80˚
- 90˚
80˚
90˚
18 22 26 30 34 38 42 46 50 54 58
Carrier frequency (kHz)
0
Angular displacement φ
Fig. 3 Sensitivity Angle (Direction Y)
Characteristics (TYP.) for Reference
Fig. 4 Relative Reception Distance vs. Ambient
Temperature (TYP.) for Reference
120
- 20˚
- 10˚
0˚
10˚
20˚
100
80
- 30˚
30˚
- 40˚
- 50˚
40˚
50˚
60
50
40
20
0
SHARP
standard transmitter
Unit
- 60˚
- 70˚
60˚
70˚
Relative comparison with reception
distance at VCC=5V,φ =0˚ , Ee <10 lx
and Ta=25 ˚C taken as 100%
- 80˚
- 90˚
80˚
90˚
- 40 - 20
0
20
40
60
80
100
0
Ambient temperature Ta (˚C)
Angular displacement φ
Fig. 5 AEHA (Japan Association of Electrical Home Appliances)
Code Pulse Width Characteristics (1st Bit) (TYP.) for Reference
700
(Conditions)
Low level pulse width
600
500
400
300
Unit
AEHA code generating transmitter
VCC =5V, Ta=RT, φ =0˚ , Ee < 10 lx
200
High level pulse width
1st bit
100
0
T= 430µs
0
1
2
3
4
5
6
7
8
9
10
Reception distance (m)
IS1U621/IS1U621L
Fig. 6 Spectral Sensitivity for Reference
100
Ta=25˚C
90
80
70
60
50
40
30
20
10
0
500
600
700
800
900
1000
1100
Wavelength λ (nm)
■ Precautions for Operation
(1) Use the light emitting unit (remote control transmitter), in consideration of performance, characteristics, operating conditions of
light emitting device and the characteristics of the light detecting unit.
(2) Pay attention to a malfunction of the light detecting unit when the surface is stained with dust and refuse.
Care must be taken not to touch the light detector surface.
• Conduct cleaning as follows.
(3) Cleaning
Solvent dip cleaning : Solvent temperature of 45 ˚C max., dipping time : Within 3 minutes
Ultrasonic cleaning : Elements are affected differently depending on the size of cleaning bath, ultrasonic output, time,
size of PWB and mounting method of elements.
Conduct trial cleaning on actual operating conditions in advance to make sure that no problem results.
• Use the following solvents only.
Solvents: Ethyl alcohol, methyl alcohol or isopropyl alcohol
(4) To avoid the electrostatic breakdown of IC, handle the unit under the condition of grounding with human body, soldering iron, etc.
(5) Do not apply unnecessary force to the terminal.
(6) Example of recommended external circuit (mount outer mounting parts near the sensor as much as possible.)
R1
Ve
VCC
+
(Circuit constant)
R1 = 47 Ω ± 5%
C1 = 47µ F
C1
IS1U621
GND
Vout
GND
Vout
C2
C2 = 1 000pF
Connect capacitor C2 between Vout and GND terminals as shown above
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