TSOP75256TT Vishay, TSOP75256TT Datasheet - Page 5

• Manufacturer Part Number: TSOP75256TT
• Description: IR Sensor IC 56kHz, E3
• Manufacturer: Vishay

Specifications of TSOP75256TT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TSOP752.., TSOP754..
Vishay Semiconductors
SUITABLE DATA FORMAT
The TSOP752.., TSOP754.. 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.., TSOP754..
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
Note
For data formats with short bursts please see the datasheet for TSOP753..
www.vishay.com
5
Minimum burst length
After each burst of length
a minimum gap time is required of
For bursts greater than
a minimum gap time in the data stream is needed of
Maximum number of continuous short bursts/second
Recommended for NEC code
Recommended for RC5/RC6 code
Recommended for Sony code
Recommended for Thomson 56 kHz code
Recommended for Mitsubishi code (38 kHz, preburst 8 ms, 16 bit)
Recommended for Sharp code
Suppression of interference from fluorescent lamps
lamps with electronic ballasts (see fig. 14 or fig. 15)
IR Receiver Modules for Remote
Control Systems
Most common disturbance
signals are suppressed
> 4 x burst length
16920
16921
10 cycles/burst
10 to 70 cycles
 10 cycles
TSOP752..
70 cycles
1800
Fig. 14 - IR Signal from Fluorescent Lamp
Fig. 15 - IR Signal from Fluorescent Lamp
yes
yes
yes
yes
yes
yes
0
0
with High Modulation
with Low Modulation
5
5
Time (ms)
Time (ms)
10
10
Even extreme disturbance
signals are suppressed
> 10 x burst length
Document Number: 81806
15
15
10 cycles/burst
10 to 35 cycles
 10 cycles
TSOP754..
35 cycles
Rev. 1.6, 14-Feb-11
1500
yes
yes
yes
yes
no
no
20
20