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TSOP59138 Datasheet(PDF) 5 Page - Vishay Siliconix |
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TSOP59138 Datasheet(HTML) 5 Page - Vishay Siliconix |
5 / 8 page www.vishay.com Document Number: 81399 162 Rev. 1.3, 18-Jul-08 New TSOP591.. Vishay Semiconductors IR Receiver Modules for Remote Control Systems SUITABLE DATA FORMAT The TSOP591.. 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 TSOP591.. 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 • Modulated IR signals from common fluorescent lamps (example of noise pattern is shown in figure 15) Fig. 15 - IR Signal from Fluorescent Lamp with Low Modulation Note For data formats with long bursts (10 carrier cycles or longer) we recommend the TSOP592.. because of the better noise suppression. 010 15 20 Time (ms) 16920 IR Signal from Fluorescent Lamp with Low Modulation 5 TSOP591.. Minimum burst length 6 cycles/burst After each burst of length a minimum gap time is required of 6 to 70 cycles ≥ 10 cycles For bursts greater than a minimum gap time in the data stream is needed of 70 cycles > 1.1 x burst length Maximum number of continuous short bursts/second 2000 Compatible to NEC code yes Compatible to RC5/RC6 code yes Compatible to RCMM code yes Compatible to RECS-80 code yes Compatible to r-Step and r-Map data format yes Compatible to XMP data format yes Suppression of interference from fluorescent lamps Most common disturbance signals are suppressed |
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