VISHAY TSOP48XG1 Technical data
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TSOP48..XG1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP4830XG1 30 kHz TSOP4833XG1 33 kHz
TSOP4836XG1 36 kHz TSOP4837XG1 36.7 kHz
TSOP4838XG1 38 kHz TSOP4840XG1 40 kHz
TSOP4856XG1 56 kHz
Description
The TSOP48..XG1 – 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. TSOP48..XG1 is the
standard IR remote control receiver series, supporting
all major transmission codes.
16 082
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
Block Diagram
Input
PIN
AGC
9612226
Control
Circuit
Band
Pass
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
3
30 k
W
1
Demodu-
lator
2
V
S
OUT
GND
Document Number 82130
www.vishay.com
1 (7)Rev. 3, 29-Mar-01
TSOP48..XG1
y()
i o
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
x 85 °C) P
amb
Soldering Temperature t x 10 s, 1 mm from case T
S
S
O
O
j
stg
amb
tot
sd
Basic Characteristics
T
= 25_C
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Supply Current (Pin 3) VS = 5 V, Ev = 0 I
VS = 5 V, Ev = 40 klx, sunlight I
Transmission Distance Ev = 0, test signal see fig.7,
IR diode TSAL6200, I
= 250 mA
F
Supply Voltage VS 4.5 5.5 V
Output Voltage Low (Pin 3) I
= 0.5 mA,Ee = 0.7 mW/m
OSL
2
Irradiance (56 kHz) Pulse width tolerance: tpi – 5/fo < E
Irradiance (30–40 kHz)
Irradiance tpi – 5/fo < tpo < tpi + 6/f
tpo < tpi + 6/fo, test signal see fig.7
o
Directivity Angle of half transmission distance ϕ
SD
SH
d 35 m
V
OSL
e min
E
e min
E
e max
1/2
–0.3...6.0 V
5 mA
–0.3...6.0 V
5 mA
100
–25...+85
–25...+85
50 mW
260
0.8 1.1 1.5 mA
1.4 mA
250 mV
0.3 0.6 mW/m
0.2 0.4 mW/m
30 W/m
±45 deg
°
C
°
C
°
C
°
C
2
2
2
Application Circuit
100 W *)
3
1
4.7 mF *)
>10 k
W
optional
m
C
TSOP48..XG1
TSAL62..
**)
16257
2
*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
www.vishay.com
2 (7)
+5V
GND
Document Number 82130
Rev. 3, 29-Mar-01
Suitable Data Format
The circuit of the TSOP48..XG1 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 .
TSOP48..XG1
Vishay Telefunken
Some examples for suitable data format are:
NEC Code, T oshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, R–2000 Code.
When a disturbance signal is applied to the
TSOP48..XG1 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..XG1 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
Document Number 82130
www.vishay.com
3 (7)Rev. 3, 29-Mar-01
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