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HS0038A2.
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Description
The HS0038A2. - series are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated output signal can directly be decoded by a microprocessor. HS0038A2. is the standard IR remote control receiver series, supporting all major transmission codes.
GND VS OUT
94 8691
Features
D Photo detector and preamplifier in one package D Internal filter for PCM frequency D Improved shielding against electrical field
disturbance
D Low power consumption D High immunity against ambient light D Continuous data transmission possible
(800 bit/s)
D TTL and CMOS compatibility D Output active low
D Suitable burst length 10 cycles/burst
Block Diagram
2 Input Control Circuit VS
30 kW 3 OUT
PIN AGC Band Pass Demodulator 1
GND
16108
Document Number 82110 Rev. 3, 10-Mar-00
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HS0038A2.
Vishay Telefunken Absolute Maximum Ratings
Tamb = 25_C Parameter Supply Voltage Supply Current Output Voltage Output Current Junction Temperature Storage Temperature Range Operating Temperature Range Power Consumption Soldering Temperature Test Conditions (Pin 2) (Pin 2) (Pin 3) (Pin 3) Symbol VS IS VO IO Tj Tstg Tamb Ptot Tsd Value -0.3...6.0 5 -0.3...6.0 5 100 -25...+85 -25...+85 50 260 Unit V mA V mA C C C mW C
(Tamb 85 C) t 10 s, 1 mm from case
x
x
Basic Characteristics
Tamb = 25_C Parameter Supply Current ( y (Pin 2) ) Test Conditions VS = 5 V, Ev = 0 VS = 5 V, Ev = 40 klx, sunlight Transmission Distance Ev = 0, test signal see fig.7, IR diode TSAL6200, IF = 400 mA Output Voltage Low (Pin 3) IOSL = 0.5 mA,Ee = 0.7 mW/m2, f = fo Irradiance (38 kHz) Pulse width tolerance: tpi - 5/fo < tpo < tpi + 6/fo, test signal see fig.7 Irradiance tpi - 5/fo < tpo < tpi + 6/fo Directivity Angle of half transmission distance Symbol ISD ISH d VOSL Ee min Ee max 1/2 30 45 Min 0.8 Typ 1.1 1.4 35 Max 1.5 Unit mA mA m mV mW/m2 W/m2 deg
0.35
250 0.5
Application Circuit
100 W *) +5 V **) >10 kW optional
TSAL62..
3
1
16215
*) recommended to suppress power supply disturbances **) tolerated supply voltage range : 4.5 Vwww.vishay.de * FaxBack +1-408-970-5600 2 (7)
I I
2 HS0038A2.
4.7 mF *)
mC
GND
Document Number 82110 Rev. 3, 10-Mar-00
HS0038A2.
Vishay Telefunken Suitable Data Format
The circuit of the HS0038A2. is designed in that way that unexpected output pulses due to noise or disturbance signals are avoided. A bandpassfilter, an integrator stage and an automatic gain control are used to suppress such disturbances. The distinguishing mark between data signal and disturbance signal are carrier frequency, burst length and duty cycle. The data signal should fullfill the following condition: * Carrier frequency should be close to 38kHz. * Burst length should be 10 cycles/burst or longer. * After each burst which is between 10 cycles and 70 cycles a gap time of at least 14 cycles is neccessary. * For each burst which is longer than 1.8ms a corresponding gap time is necessary at some time in the data stream. This gap time should be at least 4 times longer than the burst. * Up to 800 short bursts per second can be received continuously. Some examples for suitable data format are: NEC Code (repetitive pulse), NEC Code (repetitive data), Toshiba Micom Format, Sharp Code When a disturbance signal is applied to the HS0038A2. it can still receive the data signal. However the sensitivity is reduced to that level that no unexpected pulses will occure. Some examples for such disturbance signals which are suppressed by the HS0038A2. are: * * * DC light (e.g. from tungsten bulb or sunlight) Continuous signal at 38kHz or at any other frequency Signals from fluorescent lamps with electronic ballast with low modulation (see Figure A or B).
0
5
10 time [ms]
15
20
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0
5
10 time [s]
15
20
Figure B: IR Signal from Fluorescent Lamp with high Modulation
Document Number 82110 Rev. 3, 10-Mar-00
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HS0038A2.
Vishay Telefunken Typical Characteristics (Tamb = 25_C unless otherwise specified)
Ee min - Threshold Irradiance ( mW/m2 ) 1.0 / E - Rel. Responsitivity e 0.8 2.0 f ( E ) = f0 1.6 1.2 0.8 0.4 0.0 0.7
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0.6
0.4 0.2 0.0 0.8 0.9 1.0 1.1 1.2 1.3 f / f0 - Relative Frequency
Df ( 3 dB ) = f0 / 10
f = f0
"5%
eE min
0.0
94 8147
0.4
0.8
1.2
1.6
2.0
E - Field Strength of Disturbance ( kV / m )
Figure 1. Frequency Dependence of Responsivity
1.0 0.9 tpo - Output Pulse Length (ms) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1
96 12110
Figure 4. Sensitivity vs. Electric Field Disturbances
10 f = f0 1 kHz
Input burst duration
Ee min - Threshold Irradiance ( mW/m2 )
10 kHz 1
l = 950 nm, optical test signal, fig.7
100 Hz
1.0
10.0
100.0 1000.0 10000.0 mW/m2 )
94 9106
0.1 0.01
0.1
1
10
100
1000
Ee - Irradiance (
DVs RMS - AC Voltage on DC Supply Voltage ( mV )
Figure 2. Sensitivity in Dark Ambient
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0.01 0.10 1.00 10.00 100.00 Ambient, l = 950 nm Correlation with ambient light sources ( Disturbance effect ) : 10W/m2 ( Stand.illum.A, T = 2855 K )^8.2 klx ( Daylight, T = 5900 K )
Figure 5. Sensitivity vs. Supply Voltage Disturbances
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -30 -15 0 15 30 45 60 75 90 Sensitivity in dark ambient
E e min - Threshold Irradiance (mW/m2 )
^1.4klx
E e min - Threshold Irradiance (mW/m2 )
96 12111
E - DC Irradiance (W/m2)
96 12112
Tamb - Ambient Temperature ( C )
Figure 3. Sensitivity in Bright Ambient
Figure 6. Sensitivity vs. Ambient Temperature
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Document Number 82110 Rev. 3, 10-Mar-00
HS0038A2.
Vishay Telefunken
Optical Test Signal Ee
(IR diode TSAL6200, IF = 0.4 A, 30 pulses, f = f0, T = 10 ms)
1.0 T on ,T - Output Pulse Length (ms) off 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1.0
l = 950 nm, optical test signal, fig.8
Ton
t tpi * * tpi
w
T 10/fo is recommended for optimal function
16110
Toff
VO VOH VOL
Output Signal
1) 2)
7/f0 < td < 15/f0 tpo = tpi 6/f0 t tpo2
)
"
10.0
100.0 1000.0 10000.0
td1 )
96 12114
Ee - Irradiance (mW/m2)
Figure 7. Output Function
Ee Optical Test Signal S ( l ) rel - Relative Spectral Sensitivity 1.2 1.0 0.8 0.6 0.4 0.2
Figure 10. Output Pulse Diagram
600 ms T = 60 ms
600 ms
t
94 8134
VO VOH VOL
Output Signal, ( see Fig.10 )
0 750 Ton Toff t
94 8408
850
950
1050
1150
l - Wavelength ( nm )
Figure 8. Output Function
0.8 0.7 Envelope Duty Cycle 0.6 0.5 0.4 0.3 0.2
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0 10 20 30
40 1.0 0.9 0.8 0.7 50 60 70 80 0.6
95 11339p2
0.1 0 10
16153
20
30
40
50
60
70
80
90
Burstlength [number of cycles/burst]
0.6 0.4 0.2 0 0.2 0.4 drel - Relative Transmission Distance
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
Figure 12. Vertical Directivity y
Document Number 82110 Rev. 3, 10-Mar-00
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HS0038A2.
Vishay Telefunken
0 10 20 30
40 1.0 0.9 0.8 0.7 50 60 70 80 0.6
95 11340p2
0.6 0.4 0.2 0 0.2 0.4 drel - Relative Transmission Distance
Figure 13. Horizontal Directivity x
Dimensions in mm
96 12116
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Document Number 82110 Rev. 3, 10-Mar-00
HS0038A2.
Vishay Telefunken Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs ). The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA ) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
Document Number 82110 Rev. 3, 10-Mar-00
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