TSOP4138 Vishay, TSOP4138 Datasheet - Page 5

• Manufacturer Part Number: TSOP4138
• Description: Infrared Receivers 4.5-5.5V 38kHz
• Manufacturer: Vishay

Specifications of TSOP4138

• Carrier Frequency: 38 KHz
• Supply Current: 0.85 mA
• Beam Angle: 45 deg
• Data Transmission Rate: 4000 bits/s
• Mounting Style: Through Hole
• Transmission Distance: 45 m
• Viewing Angle: 45 deg
• Output Current: 5 mA
• Operating Voltage: 2.7 V to 5.5 V
• Power Dissipation: 10 mW
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Transmission Range: 45m
• Directivity: 45°
• Supply Voltage Range: 2.7V To 5.5V
• Opto Case Style: Through Hole
• Operating Temperature Range: -25°C To +85°C
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• Mounting: Through Hole
• Pin Count: 3
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

SUITABLE DATA FORMAT
These products are 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 IR receiver 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
• Modulated noise from fluorescent lamps with electronic
Note
• For data formats with long bursts (more than 10 carrier cycles) please see the datasheet for TSOP22.., TSOP48.., TSOP24.., TSOP44..
Document Number: 82135
Rev. 2.8, 04-Feb-11
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 RECS-80 code
Recommended for RCMM code
Recommended for r-step code
Recommended for XMP code
Suppression of interference from fluorescent lamps
ballasts (see figure 14 or figure 15)
IR Receiver Modules for Remote
TSOP21.., TSOP23.., TSOP41.., TSOP43..
Control Systems
supressed (example: signal pattern
Common disturbance signals are
TSOP41.., TSOP21..
> 1.1 x burst length
6 cycles/burst
6 to 70 cycles
 10 cycles
70 cycles
of fig. 14)
2000
yes
yes
yes
yes
yes
yes
yes
16921
16920
Fig. 14 - IR Signal from Fluorescent Lamp
Fig. 15 - IR Signal from Fluorescent Lamp
0
0
with High Modulation
with Low Modulation
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Vishay Semiconductors
suppressed (examples: signal pattern of
Even critical disturbance signals are
Time (ms)
Time (ms)
10
10
TSOP43.., TSOP23..
fig. 14 and fig. 15)
> 6 x burst length
6 cycles/burst
6 to 35 cycles
 10 cycles
35 cycles
15
15
2000
yes
yes
yes
yes
yes
yes
no
www.vishay.com
20
20
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