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TSOP57456 Datasheet(PDF) 5 Page - Vishay Siliconix

Part # TSOP57456
Description  IR Receiver Modules for Remote Control Systems
Download  11 Pages
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

TSOP57456 Datasheet(HTML) 5 Page - Vishay Siliconix

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TSOP572.., TSOP574..
www.vishay.com
Vishay Semiconductors
Rev. 1.5, 20-Jun-12
5
Document Number: 82434
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
SUITABLE DATA FORMAT
The TSOP572.., TSOP574.. series is 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 TSOP572.., TSOP574..
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
lamps with electronic ballasts (see figure 12 or figure 13)
Fig. 13 - IR Signal from Fluorescent Lamp
with Low Modulation
Fig. 14 - IR Signal from Fluorescent Lamp
with High Modulation
Note
• For data formats with short bursts please see the datasheet for TSOP573..
010
15
20
Time (ms)
16920
5
010
15
20
Time (ms)
16921
5
TSOP572..
TSOP574..
Minimum burst length
10 cycles/burst
10 cycles/burst
After each burst of length
a minimum gap time is required of
10 to 70 cycles
≥ 10 cycles
10 to 42 cycles
≥ 10 cycles
For bursts greater than
a minimum gap time in the data stream is needed of
70 cycles
> 4 x burst length
42 cycles
> 10 x burst length
Maximum number of continuous short bursts/second
800
1300
Recommended for NEC code
Yes
Yes
Recommended for RC5/RC6 code
Yes
Yes
Recommended for Sony code
Yes
No
Recommended for Thomson 56 kHz code
Yes
Yes
Recommended for Mitsubishi code (38 kHz, preburst 8 ms, 16 bit)
Yes
Yes
Recommended for RCMM code
No
No
Suppression of interference from fluorescent lamps
Most common disturbance
signals are suppressed
Even extreme disturbance
signals are suppressed


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