TSOP38230 Vishay, TSOP38230 Datasheet - Page 5

• Manufacturer Part Number: TSOP38230
• Description: IR SENSOR IC 30KHZ, -e3
• Manufacturer: Vishay

TSOP382.., TSOP384..
Vishay Semiconductors
SUITABLE DATA FORMAT
The TSOP382.., TSOP384.. series are designed to suppress
spurious output pulses due to noise or disturbance signals.
Data and disturbance signals can be distinguished by the
devices according to carrier frequency, burst length and
envelope duty cycle. The data signal should be close to the
band-pass center frequency (e.g. 38 kHz) and fulfill the
conditions in the table below.
When a data signal is applied to the TSOP382.., TSOP384..
in the presence of a disturbance signal, the sensitivity of the
receiver is reduced to insure that no spurious pulses are
present at the output. Some examples of disturbance signals
which are suppressed are:
• DC light (e.g. from tungsten bulb or sunlight)
• Continuous signals at any frequency
• Strongly or weakly modulated noise from fluorescent
Note
For data formats with short bursts please see the datasheet for TSOP381.., TSOP383..
www.vishay.com
144
Minimum burst length
After each burst of length
a minimum gap time is required of
For bursts greater than
a minimum gap time in the data stream is needed of
Maximum number of continuous short bursts/second
Compatible to NEC code
Compatible to RC5/RC6 code
Compatible to Sony code
Compatible to Thomson 56 kHz code
Compatible to Mitsubishi code (38 kHz, preburst 8 ms, 16 bit)
Compatible to Sharp code
Suppression of interference from fluorescent lamps
lamps with electronic ballasts (see figure 15 or figure 16)
Remote Control Systems
IR Receiver Modules for
Most common disturbance
signals are suppressed
16921
16920
> 4 x burst length
10 cycles/burst
10 to 70 cycles
TSOP382..
≥ 10 cycles
70 cycles
0
0
Fig. 15 - IR Signal from Fluorescent Lamp
Fig. 16 - IR Signal from Fluorescent Lamp
1800
yes
yes
yes
yes
yes
yes
Lamp with High Modulation
IR Signal from Fluorescent
IR Signal from Fluorescent
Lamp with Low Modulation
10
5
with High Modulation
with Low Modulation
Time (ms)
Time (ms)
10
10
Even extreme disturbance
signals are suppressed
> 10 x burst length
Document Number: 81733
10 cycles/burst
10 to 35 cycles
15
15
≥ 10 cycles
TSOP384..
35 cycles
1500
Rev. 1.2, 02-Jun-08
yes
yes
yes
yes
no
no
20
20