TSOP28..PM1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP2830PM1
TSOP2836PM1
TSOP2838PM1
TSOP2856PM1
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP2833PM1
TSOP2837PM1
TSOP2840PM1
fo
33 kHz
36.7 kHz
40 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 de-
coded by a microprocessor. The main benefit is the
reliable function even in disturbed ambient and the
protection against uncontrolled output pulses.
16115
Features
D
Photo detector and preamplifier in one package
D
Internal filter for PCM frequency
D
TTL and CMOS compatibility
D
Output active low
D
Improved shielding against electrical field
disturbance
D
Suitable burst length
≥6
cycles/burst
Special Features
D
Small size package
D
Enhanced immunity against all kinds of
disturbance light
D
No occurrence of disturbance pulses at the
output
D
Short settling time after power on (<200ms)
Block Diagram
2
Input
Control
Circuit
V
S
30 kW
1
OUT
PIN
AGC
Band
Pass
Demodu-
lator
3
GND
14318
Document Number 82059
Rev. 3, 10-Oct-00
www.vishay.com
1 (7)
TSOP28..PM1
Vishay Telefunken
Absolute Maximum Ratings
T
amb
= 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 1)
(Pin 1)
Symbol
V
S
I
S
V
O
I
O
T
j
T
stg
T
amb
P
tot
T
sd
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
(T
amb
x
85
°C)
t
x
10 s, 1 mm from case
Basic Characteristics
T
amb
= 25_C
Parameter
Supply
Su ly Current (Pin 2)
Supply Voltage (Pin 2)
Transmission Distance
Output Voltage Low (Pin 1)
Irradiance (30 – 40 kHz)
Irradiance (56 kHz)
Irradiance
Directivity
Test Conditions
V
S
= 5 V, E
v
= 0
V
S
= 5 V, E
v
= 40 klx, sunlight
E
v
= 0, test signal see fig.6,
IR diode TSAL6200, I
F
= 300 mA
I
OL
= 0.5 mA,E
e
= 0.7 mW/m
2
, f = f
o
Pulse width tolerance:
t
pii
– 4/f
o
< t
po
< t
pii
+ 6/f
o
,
test signal (see fig.6)
Angle of half transmission distance
Symbol
I
SD
I
SH
V
S
d
V
OL
E
e min
E
e min
E
e max
ϕ
1/2
30
±45
Min
0.9
4.5
35
250
0.5
0.7
Typ
1.2
1.2
Max
1.5
5.5
Unit
mA
mA
V
m
mV
mW/m
2
mW/m
2
W/m
2
deg
0.3
0.4
Application Circuit
100
W
*)
2
TSOP28..PM1
TSAL62..
1
4.7
mF
*)
>10 kW
optional
+ 5V **)
mC
3
GND
14319
*) recommended to suppress power supply disturbances
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2 (7)
Document Number 82059
Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay Telefunken
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).
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 Time
(longer than 14ms) at least each 90ms
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.
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
0
10
20
30
40
50
time [ms]
60
70
80
90
100
Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms
Signal Gap Time
0
2
4
6
8
10
time [ms]
12
14
16
18
20
Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms
Document Number 82059
Rev. 3, 10-Oct-00
www.vishay.com
3 (7)
TSOP28..PM1
Vishay Telefunken
Typical Characteristics
(T
amb
= 25_C unless otherwise specified)
1.0
/
e
E – Rel. Responsitivity
100.0
E
e min
– Threshold Irradiance (mW/m
2
)
0.8
f = f
o
10.0
10 kHz
1 kHz
1.0
0.6
0.4
0.2
0.0
0.7
0.8
0.9
1.0
1.1
1.2
1.3
e
E
min
f = f
0
"5%
Df
( 3 dB ) = f
0
/ 7
100 Hz
0.1
0.1
1.0
10.0
100.0
1000.0
DV
s RMS –
AC Voltage on DC Supply Voltage (mV)
94 9102
f / f
0
– Relative Frequency
96 12215
Figure 1. Frequency Dependence of Responsivity
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 ) : 1 0W/m2^1.4 klx
( Stand.illum.A,T = 2855 K )^8.2 klx
( Daylight, T = 5900 K )
Figure 4. 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
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
V
S
– Supply Voltage ( V )
Sensitivity in dark ambient
E
e min
– Threshold Irradiance (mW/m
2
)
14310
E – DC Irradiance (W/m
2
)
14312
E
e min
– Threshold Irradiance (mW/m
2
)
E
e
Figure 2. Sensitivity in Bright Ambient
Figure 5. Sensitivity vs. Supply Voltage
Optical Test Signal
E
e min
– Threshold Irradiance ( mW/m
2
)
2.0
f ( E ) = f
0
1.6
1.2
0.8
0.4
0.0
0.0
0.4
0.8
1.2
1.6
2.0
V
OL
T
on
T
off
V
O
V
OH
600
ms
T
D
*
T
rep
=100 ms
* T
rep
–T
D
> 15 ms is recommended for optimal function
Output Signal,
( see Fig.7 )
15808
600
ms
t
94 8147
E – Field Strength of Disturbance ( kV / m )
t
Figure 3. Sensitivity vs. Electric Field Disturbances
Figure 6. Output Function
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4 (7)
Document Number 82059
Rev. 3, 10-Oct-00
TSOP28..PM1
Vishay Telefunken
0.8
T
on
,T – Output Pulse Length (ms)
off
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
14314
T
on
I
s
– Supply Current ( mA )
T
off
l
= 950 nm,
optical test signal, fig.6
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
Supply current in dark ambient
1.0
10.0
100.0
1000.0 10000.0
14317
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
V
S
– Supply Voltage ( V )
E
e
– Irradiance (mW/m
2
)
Figure 7. Output Pulse Diagram
2.0
1.8
I
s
– Supply Current ( mA )
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–30 –15 0
15 30 45 60 75
T
amb
– Ambient Temperature (
°C
)
90
V
s
= 5 V
Figure 10. Supply Current vs. Supply Voltage
1.2
1.0
0.8
0.6
0.4
0.2
0
750
94 8408
S (
l
)
rel
– Relative Spectral Sensitivity
850
950
1050
1150
14315
l
– Wavelength ( nm )
Figure 8. Supply Current vs. Ambient Temperature
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
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0°
10°
20°
30°
E
e min
– Threshold Irradiance (mW/m
2
)
40°
1.0
0.9
0.8
0.7
50°
60°
70°
80°
0.6
96 12223p2
14316
T
amb
– Ambient Temperature (
°C
)
0.6
0.4
0.2
0
0.2
0.4
d
rel
– Relative Transmission Distance
Figure 9. Sensitivity vs. Ambient Temperature
Figure 12. Directivity
Document Number 82059
Rev. 3, 10-Oct-00
www.vishay.com
5 (7)
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