TSOP362 Vishay, TSOP362 Datasheet - Page 5

• Manufacturer Part Number: TSOP362
• Description: Ir Receiver Modules For Remote Control Systems
• Manufacturer: Vishay

Suitable Data Format
The circuit of the TSOP362.. is designed so that unex-
pected output pulses due to noise or disturbance sig-
nals are avoided. A bandpass filter, an integrator
stage and an automatic gain control are used to sup-
press such disturbances.
The distinguishing mark between data signal and dis-
turbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fulfill the following conditions:
• Carrier frequency should be close to center fre-
quency of the bandpass (e.g. 38 kHz).
• 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 neces-
sary.
• For each burst which is longer than 1.8 ms a corre-
sponding gap time is necessary at some time in the
data stream. This gap time should be at least 6 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 (repetitive pulse), NEC Code (repetitive data),
Toshiba Micom Format, Sharp Code, RC5 Code,
RC6 Code, R-2000 Code, Sony Code.
When a disturbance signal is applied to the
TSOP362.. it can still receive the data signal. How-
ever the sensitivity is reduced to that level that no
unexpected pulses will occur.
Some examples for such disturbance signals which
are suppressed by the TSOP362.. are:
• DC light (e.g. from tungsten bulb or sunlight)
Document Number 82187
Rev. 1.8, 06-Mar-07
17185
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Figure 13. Sensitivity vs. Supply Voltage
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
S
- Supply Voltage (V)
• Continuous signal at 38 kHz or at any other fre-
quency
• Signals from fluorescent lamps with electronic bal-
last with high or low modulation
(see Figure 14 or 15).
Figure 15. IR Signal from Fluorescent Lamp with high Modulation
Figure 14. IR Signal from Fluorescent Lamp with low Modulation
16921
16920
0
0
IR Signal from fluorescent
lamp with high modulation
IR Signal from fluorescent
lamp with low modulation
10
5
Vishay Semiconductors
Time (ms)
Time (ms)
10
10
TSOP362..
15
15
www.vishay.com
20
20
267