TSOP48..SS1BS12
Vishay Telefunken
1 (7)Rev. 3, 29-Mar-01 www.vishay.com
Document Number 82122
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP4830SS1BS12 30 kHz TSOP4833SS1BS12 33 kHz
TSOP4836SS1BS12 36 kHz TSOP4837SS1BS12 36.7 kHz
TSOP4838SS1BS12 38 kHz TSOP4840SS1BS12 40 kHz
TSOP4856SS1BS12 56 kHz
Description
The TSOP48..SS1BS12 – series are miniaturized re-
ceivers 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 . TSOP48..SS1BS12 is the
standard IR remote control receiver series, supporting
all major transmission codes. 14 500
Features
D
Photo detector and preamplifier in one package
D
Internal filter for PCM frequency
D
Improved shielding against electrical field
disturbance
D
TTL and CMOS compatibility
D
Output active low
D
Low power consumption
D
High immunity against ambient light
D
Continuous data transmission possible
(800 bit/s)
D
Suitable burst length 10 cycles/burst
Block Diagram
9612226
PIN
Input
AGC
Control
Circuit
Band
Pass Demodu-
lator
30 k
W
2
3
1
VS
OUT
GND
TSOP48..SS1BS12
Vishay Telefunken
Rev. 3, 29-Mar-01
www.vishay.com Document Number 82122
2 (7)
Absolute Maximum Ratings
Tamb = 25
_
CParameter Test Conditions Symbol Value Unit
Supply Voltage (Pin 2) VS–0.3...6.0 V
Supply Current (Pin 2) IS5 mA
Output Voltage (Pin 1) VO–0.3...6.0 V
Output Current (Pin 1) IO5 mA
Junction Temperature Tj100
°
C
Storage Temperature Range Tstg –25...+85
°
C
Operating Temperature Range Tamb –25...+85
°
C
Power Consumption (Tamb
x
85
°
C) Ptot 50 mW
Soldering Temperature t
x
10 s, 1 mm from case Tsd 260
°
C
Basic Characteristics
Tamb = 25
_
C
Parameter Test Conditions Symbol Min Typ Max Unit
Supply Current (Pin 3) VS = 5 V, Ev = 0 ISD 0.8 1.1 1.5 mA
y()
VS = 5 V, Ev = 40 klx, sunlight ISH 1.4 mA
Transmission Distance Ev = 0, test signal see fig.7,
IR diode TSAL6200, IF = 250 mA d 35 m
Supply Voltage VS 4.5 5.5 V
Output Voltage Low (Pin 3) IOSL = 0.5 mA,Ee = 0.7 mW/m2VOSL 250 mV
Irradiance (56 kHz) Pulse width tolerance: tpi – 5/fo <
tpo < tpi + 6/fo, test signal see fig.7 Ee min 0.3 0.6 mW/m2
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 tpi – 5/fo < tpo < tpi + 6/foEe max 30 W/m2
Directivity Angle of half transmission distance ϕ1/2 ±45 deg
Application Circuit
16250
TSAL62..
TSOP48..SS1BS12
3
1
2
4.7
m
F *)
m
C
>10 k
W
optional
100
W
*) +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.
**)
TSOP48..SS1BS12
Vishay Telefunken
3 (7)Rev. 3, 29-Mar-01 www.vishay.com
Document Number 82122
Suitable Data Format
The circuit of the TSOP48..SS1BS12 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 center
frequency of the bandpass (e.g. 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 necessary.
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, Toshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, R–2000 Code.
When a disturbance signal is applied to the
TSOP48..SS1BS12 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 TSOP48..SS1BS12 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 high or low modulation (see Figure A or
Figure 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
TSOP48..SS1BS12
Vishay Telefunken
Rev. 3, 29-Mar-01
www.vishay.com Document Number 82122
4 (7)
Typical Characteristics (Tamb = 25
_
C unless otherwise specified)
0.7 0.8 0.9 1.0 1.1
E / E – Rel. Responsitivity
e min
f/f0 – Relative Frequency
1.3
94 8143
0.0
0.2
0.4
0.6
0.8
1.0
e
1.2
f = f0
"
5%
D
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
po
t – Output Pulse Length (ms)
Input burst duration
l
= 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 min
E – Threshold Irradiance (mW/m )
2
Correlation with ambient light sources
(Disturbance effect):10W/m2
^
1.4klx
(Stand.illum.A,T=2855K)
^
8.2klx
(Daylight,T=5900K)
Ambient,
l
= 950 nm
Figure 3. Sensitivity in Bright Ambient
0.0 0.4 0.8 1.2 1.6
0.0
0.4
0.8
1.2
2.0
E – Field Strength of Disturbance ( kV/m )
2.0
94 8147
1.6
E – Threshold Irradiance ( mW/m )
e min 2
f(E)=f0
Figure 4. Sensitivity vs. Electric Field Disturbances
0.01 0.1 1 10 100
0.1
1
10
1000
94 9106
D
VsRMS AC Voltage on DC Supply Voltage (mV)
E – Threshold Irradiance ( mW/m )
e min 2
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 min
E – Threshold Irradiance (mW/m )
2
Sensitivity in dark ambient
Figure 6. Sensitivity vs. Ambient Temperature
TSOP48..SS1BS12
Vishay Telefunken
5 (7)Rev. 3, 29-Mar-01 www.vishay.com
Document Number 82122
Ee
T
tpi *
t
* tpi
w
10/fo is recommended for optimal function
VO
VOH
VOL t
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/f0
2 ) tpo = tpi
"
6/f0
Figure 7. Output Function
Ee
t
VO
VOH
VOL t
600
m
s 600
m
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
Envelope Duty Cycle
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 – Output Pulse Length (ms)
Ton
l
= 950 nm,
optical test signal, fig.8
Toff
Figure 10. Output Pulse Diagram
750 850 950 1050
0
0.2
0.4
0.6
0.8
1.2
S ( ) – Relative Spectral Sensitivity
rel
l
– Wavelength ( nm )
1150
94 8408
1.0
l
Figure 11. Relative Spectral Sensitivity vs. Wavelength
96 12223p2
0.4 0.2 0 0.2 0.4 0.6
0.6
0.9
0°30°
10°20°
40°
50°
60°
70°
80°
1.0
0.8
0.7
drel – Relative Transmission Distance
Figure 12. Directivity
TSOP48..SS1BS12
Vishay Telefunken
Rev. 3, 29-Mar-01
www.vishay.com Document Number 82122
6 (7)
Dimensions in mm
16003
TSOP48..SS1BS12
Vishay Telefunken
7 (7)Rev. 3, 29-Mar-01 www.vishay.com
Document Number 82122
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