TSOP593..TR1, TSOP595..TR1

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Vishay Semiconductors

Rev. 1.6, 14-Apr-2021

6

Document Number: 82790

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SUITABLE DATA FORMAT

This 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 product 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 pattern from fluorescent

lamps with electronic ballasts (see Fig. 14 or Fig. 15)

Fig. 14 - IR Disturbance from Fluorescent Lamp

With Low Modulation

Fig. 15 - IR Disturbance from Fluorescent Lamp

With High Modulation

Note

• For data formats with long bursts please see the datasheet for TSOP592..TR1, TSOP594..TR1

16920

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Axis Title

Time (ms)

16921

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-60

-40

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Axis Title

Time (ms)

TSOP593..TR1

TSOP595..TR1

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 patterns of Fig. 14 and Fig. 15)

Critical disturbance

patterns are suppressed,

e.g. highly dimmed LCDs