Overview

This IR demodulator from Vishay is a general-purpose receiver for IR-based remote-control projects. It is optimized for data rates up to 4000 bits/s and bursts as short as six cycles, and the detector’s epoxy package serves as an infrared filter that helps eliminate noise from visible light sources. The operating voltage range is broad enough for 5 V and 3.3 V logic, and unlike some receiver modules, the TSOP34156 allows for continuous reception. The module’s output signal can be directly connected to a microcontroller; no additional external components are required.

For a similar IR detector that is tuned for a 38 kHz carrier frequency, see the Vishay TSOP38438.

Modulated IR detector comparison

Part TSOP34156 TSOP38438 TSSP58P38 TSSP58038
Intended function IR remote control brightness/proximity sensing predictable modulated IR presence sensing
Modulation frequency 56 kHz 38 kHz 38 kHz 38 kHz
Gain (sensitivity) automatic but inaccessible automatic, predictable fixed high gain
Output binary (data) analog (pulse width) binary (on/off)
Update rate a few kHz a few Hz a few kHz

Specifications

  • Operating Voltage: 2.7 V to 5.5 V
  • Carrier Frequency: 56 kHz
  • Max data rate: 4000 bps
  • Package: Through-hole with 0.1″ lead spacing

See the resources tab for the TSOP341 datasheet.


Resources

File downloads

TSOP34156 datasheet (470k pdf)

(PL-837)

SKU PL-837
Brand Pololu

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