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TSOP28..PM1
Vishay T elefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP2830PM1 30 kHz TSOP2833PM1 33 kHz
TSOP2836PM1 36 kHz TSOP2837PM1 36.7 kHz
TSOP2838PM1 38 kHz TSOP2840PM1 40 kHz
TSOP2856PM1 56 kHz
Description
The TSOP28..PM1 – 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. The main benefit is the
reliable function even in disturbed ambient and the
protection against uncontrolled output pulses.
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 ≥6 cycles/burst
Block Diagram
Input
PIN
AGC
Special Features
Small size package
Enhanced immunity against all kinds of
disturbance light
No occurrence of disturbance pulses at the
output
Short settling time after power on (<200s)
Control
Circuit
Band
Pass
Demodu-
lator
30 k
16115
2
V
S
1
OUT
3
GND
Document Number 82059
14318
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1 (7)Rev. 3, 10-Oct-00
TSOP28..PM1
Su ly Current (Pin 2)
4/f
6/f
Vishay Telefunken
Absolute Maximum Ratings
T
= 25_C
amb
Parameter Test Conditions Symbol Value Unit
Supply Voltage (Pin 2) V
Supply Current (Pin 2) I
Output Voltage (Pin 1) V
Output Current (Pin 1) I
Junction Temperature T
Storage Temperature Range T
Operating Temperature Range T
Power Consumption (T
Soldering Temperature t 10 s, 1 mm from case T
Basic Characteristics
T
= 25_C
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Supply Current (Pin 2) VS = 5 V, Ev = 0 I
VS = 5 V, Ev = 40 klx, sunlight I
Supply Voltage (Pin 2) V
Transmission Distance Ev = 0, test signal see fig.6,
IR diode TSAL6200, IF = 300 mA
Output Voltage Low (Pin 1) IOL = 0.5 mA,Ee = 0.7 mW/m2, f = f
Irradiance (30 – 40 kHz) Pulse width tolerance:
Irradiance (56 kHz)
tpi –
test signal (see fig.6)
Irradiance E
Directivity Angle of half transmission distance ϕ
< tpo < tpi +
o
85 C) P
amb
o
,
o
SD
SH
S
d 35 m
V
OL
E
e min
E
e min
e max
1/2
S
S
O
O
j
stg
amb
tot
sd
–0.3...6.0 V
5 mA
–0.3...6.0 V
5 mA
100 C
–25...+85 C
–25...+85 C
50 mW
260 C
0.9 1.2 1.5 mA
1.2 mA
4.5 5.5 V
250 mV
0.3 0.5 mW/m
0.4 0.7 mW/m
30 W/m
±45 deg
2
2
2
Application Circuit
TSAL62..
14319
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2 (7)
TSOP28..PM1
2
4.7 F *)
100 *)
>10 k
+5V **)
optional
1
C
3
GND
*) recommended to suppress power supply disturbances
Document Number 82059
Rev. 3, 10-Oct-00
Suitable Data Format
The circuit of the TSOP28..PM1 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 ( not
suppressed) and disturbance signal (supressed) are
carrier frequency, burst length and Signal Gap Time
(see diagram below).
TSOP28..PM1
Vishay Telefunken
Some examples for suitable data format are:
NEC Code (repetitive pulse), NEC Code (repetitive
data), Toshiba Micom Format, Sharp Code, RC5
Code, RECS–80 Code, R–2000 Code.
When a disturbance signal is applied to the
TSOP28..PM1 it can still receive the data signal.
However the sensitivity is reduced to that level that no
unexpected pulses will occure.
The data signal should fullfill the following condition:
• Carrier frequency should be close to center
frequency of the bandpass (e.g. 38kHz).
• Burst length should be 6 cycles/burst or longer.
• After each burst a gap time of at least 10 cycles is
neccessary.
• The data format should not make a continuous
signal transmission. There must be a Signal Gap T ime
(longer than 14ms) at least each 90ms
0 102030405060708090100
Some examples for such disturbance signals which
are suppressed by the TSOP28..PM1 are:
• DC light (e.g. from tungsten bulb or sunlight),
• Continuous signal at 38kHz or at any other
frequency,
• Signals from fluorescent lamps.
• Continuous IR signal (e.g. 1ms burst, 2ms pause)
Signal Gap Time
time [ms]
Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms
Signal Gap Time
0 2 4 6 8101214161820
time [ms]
Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms
Document Number 82059
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3 (7)Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay Telefunken
T ypical Characteristics (T
amb
1.0
0.8
0.6
0.4
e
0.2
E / E – Rel. Responsitivity
e min
f = f0"5%
Df ( 3dB ) = f0/7
0.0
94 9102
0.7 0.8 0.9 1.0 1.1
f/f0 – Relative Frequency
1.2
Figure 1. Frequency Dependence of Responsivity
4.5
2
e min
E – Threshold Irradiance (mW/m )
Correlation with ambient light sources
4.0
(Disturbance effect) :10W/m2^1.4klx
(Stand.illum.A,T=2855K)^8.2klx
3.5
3.0
(Daylight,T= 5900 K )
2.5
2.0
1.5
Ambient, l = 950 nm
1.0
0.5
0
0.01 0.10 1.00 10.00 100.00
E – DC Irradiance (W/m2)14310
= 25_C unless otherwise specified)
100.0
2
f = f
o
1.3
10.0
1.0
e min
E – Threshold Irradiance (mW/m )
0.1
0.1 1.0 10.0 100.0 1000.0
96 12215
DV
AC Voltage on DC Supply Voltage (mV)
sRMS –
Figure 4. Sensitivity vs. Supply Voltage Disturbances
1.0
2
E – Threshold Irradiance (mW/m )
e min
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Sensitivity in dark ambient
0
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
VS – Supply Voltage ( V )14312
10 kHz
1 kHz
100 Hz
Figure 2. Sensitivity in Bright Ambient
2
2.0
f(E)=f
0
1.6
1.2
0.8
0.4
e min
E – Threshold Irradiance ( mW/m )
0.0
0.0 0.4 0.8 1.2 1.6
94 8147
E – Field Strength of Disturbance ( kV/m )
Figure 3. Sensitivity vs. Electric Field Disturbances
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4 (7)
2.0
Figure 5. Sensitivity vs. Supply Voltage
Optical Test Signal
E
e
600 ms
TD*
T
=100 ms
* T
V
O
V
OH
V
OL
> 15 ms is recommended for optimal function
rep–TD
Output Signal, ( see Fig.7 )
rep
T
on
Figure 6. Output Function
600 ms
T
off
t
15808
t
Document Number 82059
Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay Telefunken
0.8
T
0.7
on
0.6
0.5
T
off
0.4
0.3
0.2
0.1
on off
T ,T – Output Pulse Length (ms)
= 950 nm,
optical test signal, fig.6
0
0.1 1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance (mW/m2)14314
Figure 7. Output Pulse Diagram
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
s
I – Supply Current ( mA )
0.4
0.2
0
–30–150 153045607590
T
– Ambient Temperature ( °C )14315
amb
Vs = 5 V
1.7
1.6
Supply current in dark ambient
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
s
I – Supply Current ( mA )
0.7
0.6
0.5
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
VS – Supply Voltage ( V )14317
Figure 10. Supply Current vs. Supply Voltage
1.2
1.0
0.8
0.6
0.4
rel
0.2
S ( ) – Relative Spectral Sensitivity
0
750 850 950 1050
94 8408
– Wavelength ( nm )
1150
Figure 8. Supply Current vs. Ambient Temperature
1.0
2
0.9
0.8
Sensitivity in dark ambient
0.7
0.6
0.5
0.4
0.3
0.2
0.1
e min
E – Threshold Irradiance (mW/m )
0
–30–150 153045607590
T
– Ambient Temperature ( °C )14316
amb
Figure 9. Sensitivity vs. Ambient Temperature
Document Number 82059
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0°
10° 20°
30°
40°
1.0
50°
60°
70°
80°
0.6
96 12223p2
0.9
0.8
0.7
0.4 0.2 0 0.2 0.4
0.6
d
– Relative Transmission Distance
rel
Figure 12. Directivity
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5 (7)Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay Telefunken
Dimensions in mm
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6 (7)
15839
Document Number 82059
Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay T elefunken
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. V arious 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 V ishay-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.
Document Number 82059
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
www.vishay.com
7 (7)Rev. 3, 10-Oct-00
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