Photo Modules for PCM Remote Control Systemspicprojects.org.uk/projects/sirc/TSOP2238.pdf · Photo...
Transcript of Photo Modules for PCM Remote Control Systemspicprojects.org.uk/projects/sirc/TSOP2238.pdf · Photo...
TSOP22..Vishay Telefunken
1 (7)Rev. 4, 30-Mar-01www.vishay.comDocument Number 82095
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies Type fo Type fo
TSOP2230 30 kHz TSOP2233 33 kHz
TSOP2236 36 kHz TSOP2237 36.7 kHz
TSOP2238 38 kHz TSOP2240 40 kHz
TSOP2256 56 kHz
DescriptionThe TSOP22.. – series are miniaturized receivers forinfrared remote control systems. PIN diode andpreamplifier are assembled on lead frame, the epoxypackage is designed as IR filter. The demodulated output signal can directly bedecoded by a microprocessor. The main benefit is thereliable function even in disturbed ambient and theprotection against uncontrolled output pulses. 14 500
Features
� Photo detector and preamplifier in one package
� Internal filter for PCM frequency
� TTL and CMOS compatibility
� Output active low
� Improved shielding against electrical field disturbance
� Suitable burst length ≥10 cycles/burst
Special Features
� Small size package
� High immunity against disturbance light
� No occurrence of disturbance pulses at the output
� Short settling time after power on (<200�s)
� Contiunous data transmission possible ( 800 bursts/s)
Block Diagram
14318
PIN
Input
AGC
ControlCircuit
BandPass
Demodu-lator
30 k�
3
2
1
VS
OUT
GND
TSOP22..Vishay Telefunken
Rev. 4, 30-Mar-01www.vishay.com Document Number 820952 (7)
Absolute Maximum RatingsTamb = 25�C
Parameter Test Conditions Symbol Value UnitSupply Voltage (Pin 2) VS –0.3...6.0 VSupply Current (Pin 2) IS 5 mAOutput Voltage (Pin 1) VO –0.3...6.0 VOutput Current (Pin 1) IO 5 mAJunction Temperature Tj 100 �CStorage Temperature Range Tstg –25...+85 �COperating Temperature Range Tamb –25...+85 �CPower Consumption (Tamb � 85 �C) Ptot 50 mWSoldering Temperature t � 10 s, 1 mm from case Tsd 260 �C
Basic CharacteristicsTamb = 25�C
Parameter Test Conditions Symbol Min Typ Max Unit
Supply Current (Pin 2)VS = 5 V, Ev = 0 ISD 0.8 1.1 1.5 mA
Supply Current (Pin 2)VS = 5 V, Ev = 40 klx, sunlight ISH 1.4 mA
Supply Voltage (Pin 2) VS 4.5 5.5 V
Transmission Distance Ev = 0, test signal see fig.7, IR diode TSAL6200, IF = 250 mA
d 35 m
Output Voltage Low (Pin 1) IOL = 0.5 mA,Ee = 0.7 mW/m2, f = fo VOL 250 mV
Irradiance (30 – 40 kHz) Pulse width tolerance: tpi – 5/fo < tpo< tpi + 6/fo, test signal see fig.7
Ee min 0.2 0.4 mW/m2
Irradiance (56 kHz) Pulse width tolerance: tpi – 5/fo < tpo< tpi + 6/fo, test signal see fig.7
Ee min 0.3 0.5 mW/m2
Irradiance Ee max 30 W/m2
Directivity Angle of half transmission distance ϕ1/2 ±45 deg
Application Circuit
16133
TSAL62..
TSOP22..2
1
3
4.7 �F *)
�C
>10 k�optional
100 � *) +5V
*) recommended to suppress power supply disturbances
GND
**)
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
TSOP22..Vishay Telefunken
3 (7)Rev. 4, 30-Mar-01www.vishay.comDocument Number 82095
Suitable Data FormatThe circuit of the TSOP22... is designed in that waythat unexpected output pulses due to noise ordisturbance signals are avoided. A bandpassfilter, anintegrator stage and an automatic gain control areused to suppress such disturbances. The distinguishing mark between data signal anddisturbance signal are carrier frequency, burst lengthand duty cycle.
The data signal should fullfill the following condition:
• Carrier frequency should be close to centerfrequency of the bandpass (e.g. 38kHz).
• Burst length should be 10 cycles/burst or longer.
• After each burst which is between 10 cycles and 70cycles a gap time of at least 14 cycles is neccessary.
• For each burst which is longer than 1.8ms acorresponding gap time is necessary at some time inthe data stream. This gap time should be at least 4times longer than the burst.
• Up to 800 short bursts per second can be receivedcontinuously.
Some examples for suitable data format are:NEC Code, Toshiba Micom Format, Sharp Code, RC5Code, RC6 Code, R–2000 Code.
When a disturbance signal is applied to the TSOP22...it can still receive the data signal. However thesensitivity is reduced to that level that no unexpectedpulses will occure.
Some examples for such disturbance signals whichare suppressed by the TSOP22... are:
• DC light (e.g. from tungsten bulb or sunlight)
• Continuous signal at 38kHz or at any otherfrequency
• Signals from fluorescent lamps with electronicballast with high or low modulation (see Figure A orFigure B).
0 5 10 15 20
time [ms]
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0 5 10 15 20
time [s]
Figure B: IR Signal from Fluorescent Lamp with high Modulation
TSOP22..Vishay Telefunken
Rev. 4, 30-Mar-01www.vishay.com Document Number 820954 (7)
Typical Characteristics (Tamb = 25�C unless otherwise specified)
0.7 0.8 0.9 1.0 1.1
E
/
E
– R
el. R
espo
nsiti
vity
e m
in
f / f 0 – Relative Frequency
1.3
94 8143
0.0
0.2
0.4
0.6
0.8
1.0
e
1.2
f = f0�5%�f ( 3dB ) = f0/10
Figure 1. Frequency Dependence of Responsivity
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1 1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance ( mW/m2 )96 12110
pot –
Out
put P
ulse
Len
gth
(ms)
Input burst duration
� = 950 nm, optical test signal, fig.7
Figure 2. Sensitivity in Dark Ambient
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.01 0.10 1.00 10.00 100.00
E – DC Irradiance (W/m2)96 12111
e m
inE
–
Thr
esho
ld I
rrad
ianc
e (m
W/m
)
2 Correlation with ambient light sources(Disturbance effect ) :10W/m2�1.4klx(Stand.illum.A,T=2855 K)�8.2klx
(Daylight,T=5900 K)
Ambient, � = 950 nm
Figure 3. Sensitivity in Bright Ambient
0.0 0.4 0.8 1.2 1.60.0
0.4
0.8
1.2
2.0
E – Field Strength of Disturbance ( kV /m )
2.0
94 8147
1.6
E
–
Thr
esho
ld Ir
radi
ance
( m
W/m
)
e m
in2
f (E )= f0
Figure 4. Sensitivity vs. Electric Field Disturbances
0.01 0.1 1 10 1000.1
1
10
1000
94 9106 �Vs RMS – AC Voltage on DC Supply Voltage (mV)
E
–
Thr
esho
ld Ir
radi
ance
( m
W/m
)
e m
in2
f = f0
10 kHz
100 Hz
1 kHz
Figure 5. Sensitivity vs. Supply Voltage Disturbances
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
–30 –15 0 15 30 45 60 75 90
Tamb – Ambient Temperature ( °C )96 12112
e m
inE
–
Thr
esho
ld I
rrad
ianc
e (m
W/m
)
2
Sensitivity in dark ambient
Figure 6. Sensitivity vs. Ambient Temperature
TSOP22..Vishay Telefunken
5 (7)Rev. 4, 30-Mar-01www.vishay.comDocument Number 82095
Ee
T
tpi *
t
* tpi � 10/fo is recommended for optimal function
VO
VOH
VOLt
16110
Optical Test Signal(IR diode TSAL6200, IF = 0.4 A, 30 pulses, f = f0, T = 10 ms)
Output Signal
td1 ) tpo2
)
1 ) 7/f0 < td < 15/f02 ) tpo = tpi � 6/f0
Figure 7.
Ee
t
VO
VOH
VOLt
600 �s 600 �s
T = 60 ms
Ton Toff
94 8134
Optical Test Signal
Output Signal, ( see Fig.10 )
Figure 8. Output Function
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
10 20 30 40 50 60 70 80 90
Burstlength [number of cycles/burst]16156
Env
elop
e D
uty
Cyc
le
f = 38 kHz
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1 1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance (mW/m2)96 12114
on
off
T
,T
–
Out
put P
ulse
Len
gth
(ms)
Ton
� = 950 nm, optical test signal, fig.8
Toff
Figure 10. Output Pulse Diagram
750 850 950 10500
0.2
0.4
0.6
0.8
1.2
S (
)
– R
elat
ive
Spe
ctra
l Sen
sitiv
ityre
l
� – Wavelength ( nm )
1150
94 8408
1.0�
Figure 11. Relative Spectral Sensitivity vs. Wavelength
96 12223p2
0.4 0.2 0 0.2 0.4 0.60.6
0.9
0°30°
10° 20°
40°
50°
60°
70°
80°
1.0
0.8
0.7
drel – Relative Transmission Distance
Figure 12. Directivity
TSOP22..Vishay Telefunken
Rev. 4, 30-Mar-01www.vishay.com Document Number 820956 (7)
Dimensions in mm
13655
TSOP22..Vishay Telefunken
7 (7)Rev. 4, 30-Mar-01www.vishay.comDocument Number 82095
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 asozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs andforbid their use within the next ten years. Various national and international initiatives are pressing for an earlier banon these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use ofODSs 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 EnvironmentalProtection 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 depletingsubstances 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 applicationby 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 orindirectly, 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, GermanyTelephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
This datasheet has been downloaded from:
www.DatasheetCatalog.com
Datasheets for electronic components.