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TSOP57356 Datasheet(PDF) 5 Page - Vishay Siliconix |
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TSOP57356 Datasheet(HTML) 5 Page - Vishay Siliconix |
5 / 11 page TSOP573.., TSOP575.. www.vishay.com Vishay Semiconductors Rev. 1.8, 13-Sep-17 5 Document Number: 82450 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 TSOP573.., TSOP575.. series is designed to suppress spurious output pulses due to noise or disturbance signals. The devices can distinguish data signals from noise due to differences in frequency, burst length, and envelope duty cycle. The data signal should be close to the device’s band-pass center frequency (e.g. 38 kHz) and fulfill the conditions in the table below. When a data signal is applied to the TSOP573.., TSOP575.. in the presence of a disturbance, the sensitivity of the receiver is automatically reduced by the AGC to insure that no spurious pulses are present at the receiver’s output. Some examples which are suppressed are: • DC light (e.g. from tungsten bulbs sunlight) • Continuous signals at any frequency • Strongly or weakly modulated patterns from fluorescent lamps with electronic ballasts (see Fig. 13 or Fig. 14) •2.4 GHz and 5 GHz Wi-Fi 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 long bursts (more than 10 carrier cycles) please see the datasheet for TSOP572.., TSOP574.. 010 15 20 Time (ms) 16920 5 010 15 20 Time (ms) 16921 5 TSOP573.. TSOP575.. Minimum burst length 6 cycles/burst 6 cycles/burst After each burst of length a minimum gap time is required of 6 to 35 cycles ≥ 10 cycles 6 to 24 cycles ≥ 10 cycles For bursts greater than a minimum gap time in the data stream is needed of 35 cycles > 6 x burst length 24 cycles > 25 ms Maximum number of continuous short bursts/second 2000 2000 MCIR code Preferred Yes XMP-1, XMP-2 code Preferred Yes Suppression of interference from fluorescent lamps Mild and complex disturbance patterns are suppressed (example: signal pattern of Fig. 13 and Fig. 14) Critical disturbance patterns are suppressed, e.g. highly dimmed LCDs |
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