Not for New Design - Replaced by New TSOP752..W, TSOP754..W (#82496)

TSOP752..W, TSOP754..W

www.vishay.com

Vishay Semiconductors

Rev. 1.7, 16-Aug-12

5

Document Number: 81598

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

SUITABLE DATA FORMAT

The TSOP752..W, TSOP754..W 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 TSOP752..W,

TSOP754..W 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 14 or figure 15)

Fig. 14 - IR Signal from Fluorescent Lamp

with Low Modulation

Fig. 15 - IR Signal from Fluorescent Lamp

with High Modulation

Note

• For data formats with short bursts please see the datasheet for TSOP753..

010

15

20

Time (ms)

16920

5

010

15

20

Time (ms)

16921

5

TSOP752..W

TSOP754..W

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 35 cycles

≥ 10 cycles

For bursts greater than

a minimum gap time in the data stream is needed of

70 cycles

> 4 x burst length

35 cycles

> 10 x burst length

Maximum number of continuous short bursts/second

1800

1500

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

no

Recommended for Sharp code

yes

yes

Suppression of interference from fluorescent lamps

Most common disturbance

signals are suppressed

Even extreme disturbance

signals are suppressed