The Vishay TSOP34156 is a general-purpose modulated IR receiver for IR-based remote-control projects. It features a wide operating voltage range and allows for relatively high data rates; this particular unit is tuned for a 56 kHz carrier frequency.
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This IR demodulator from Vishay is a general-purpose receiver for IR-based remote-control projects. It is optimised 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.
| 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) | analogue (pulse width) | binary (on/off) | |
| Update rate | a few kHz | a few Hz | a few kHz | |
See the resources tab for the TSOP341 datasheet.
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