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Rs 35.00 Rs 29.66
  • Photo detector and preamplifier in one package
  • Internal filter for PCM frequency
  • Improved shielding against electrical field disturbance
  • TTL and CMOS compatibility
  • Output active low
  • Low power consumption
  • High immunity against ambient light
  • Continuous data transmission possible (1200 bit/s)
  • Suitable burst length ≥10 cycles/burst

TSOP 1738

TSOP1738 is a infrared receiver tuned to receive IR of frequency 38 kHz only. It is perfect for making obstacle sensors and to read signals from most IR remotes (TV, AC, Home Theatre Remotes, etc). When used as a receiver in distance sensors, it provides better performance as it allows better reception and protection from ambient light compared to other IR receivers. It can be used to read signals of most IR Remotes.

The TSOP1738 IR sensor module consists of a PIN diode and a pre amplifier which are embedded into a single package. The output of TSOP is active low and it gives +5V in off state. When IR waves, from a source, with a centre frequency of 38 kHz incident on it, its output goes low. Lights coming from sunlight, fluorescent lamps etc. may cause disturbance to it and result in undesirable output even when the source is not transmitting IR signals. A bandpass filter, an integrator stage and an automatic gain control are used to suppress such disturbances.  TSOP module has an inbuilt control circuit for amplifying the coded pulses from the IR transmitter.

The sensor can be used for Proximity detection application along with an IR led in robotics and security systems. It receives IR signal at 38khz frequency.

Package Includes:

  • 1 x TSOP 1738 

Specifications

Supply Voltage 5V
Power consumption 0.4 to 1.0 mA
Min Radiation 0.35 mW/m2 type
Angle of detection 90 degrees
Dimensions of the casing  12.5 x 10 x 5.8 (mm)
Weight  5 grams
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How do I know if tsop1738 is working?

Give power supply to pin 2 with the help of resistor and ground pin 1. Set your multimeter in voltage range at 20V. Now put positive terminal of your multimeter on pin 3 of TSOP1738 and ground the another end of multimeter. Now whenever you press any button on remote you will see variation in multimeter reading.

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