Datasheet TSOP22, TSOP24, TSOP48, TSOP44 (Vishay) - 5

HerstellerVishay
BeschreibungIR Receiver Modules for Remote Control Systems
Seiten / Seite7 / 5 — TSOP22.., TSOP24.., TSOP48.., TSOP44.. SUITABLE DATA FORMAT. TSOP22.., …
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DokumentenspracheEnglisch

TSOP22.., TSOP24.., TSOP48.., TSOP44.. SUITABLE DATA FORMAT. TSOP22.., TSOP48.. TSOP24.., TSOP44.. Note

TSOP22.., TSOP24.., TSOP48.., TSOP44. SUITABLE DATA FORMAT TSOP22.., TSOP48. TSOP24.., TSOP44. Note

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TSOP22.., TSOP24.., TSOP48.., TSOP44..
www.vishay.com Vishay Semiconductors
SUITABLE DATA FORMAT
Axis Title This series is designed to suppress spurious output pulses 7 10000 due to noise or disturbance signals. The devices can distinguish data signals from noise due to differences in 6 frequency, burst length, and envelope duty cycle. The data 5 signal should be close to the device’s band-pass center 1000 itude frequency (e.g. 38 kHz) and fulfill the conditions in the table pl 4 m ne ne below. ine A 3 1st li When a data signal is applied to the product in the 2nd li 2nd l ignal presence of a disturbance, the sensitivity of the receiver S 100 2 IR is automatically reduced by the AGC to insure that no spurious pulses are present at the receiver’s output. Some 1 examples which are suppressed are: 0 10 • DC light (e.g. from tungsten bulbs sunlight) 0 5 10 15 20 • Continuous signals at any frequency 16920 Time (ms) • Strongly or weakly modulated patterns from fluorescent Fig. 13 - IR Disturbance from Fluorescent Lamp lamps with electronic ballasts (see Fig. 13 or Fig. 14). With Low Modulation • 2.4 GHz and 5 GHz Wi-Fi Axis Title 40 10000 20 1000 itude 0 pl ine m ne ne A 1st li 2nd l 2nd li -20 ignal S 100 IR -40 -60 10 0 5 10 15 20 16921 Time (ms) Fig. 14 - IR Disturbance from Fluorescent Lamp With High Modulation
TSOP22.., TSOP48.. TSOP24.., TSOP44..
Minimum burst length 10 cycles/burst 10 cycles/burst After each burst of length 10 to 70 cycles 10 to 35 cycles a minimum gap time is required of ≥ 12 cycles ≥ 12 cycles For bursts greater than 70 cycles 35 cycles a minimum gap time in the data stream is needed of > 4 x burst length > 10 x burst length Maximum number of continuous short bursts/second 800 1300 NEC code Yes Preferred RC5/RC6 code Yes Preferred Thomson 56 kHz code Yes Preferred Sharp code Yes Preferred Mild disturbance patterns Complex and critical disturbance patterns Suppression of interference from fluorescent lamps are suppressed (example: are suppressed (example: signal pattern signal pattern of Fig. 13) of Fig. 14 or highly dimmed LCDs)
Note
• For data formats with short bursts please see the datasheet of TSOP23.., TSOP43.. Rev. 1.8, 26-Sep-2018
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