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Full machine-readable index: https://core-electronics.com.au/llms.txt # Vishay TSOP38438 IR Receiver Module, 38kHz **Type:** Product page · **SKU:** POLOLU-2471 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/vishay-tsop38438-ir-receiver-module-38khz.html ([markdown](https://core-electronics.com.au/vishay-tsop38438-ir-receiver-module-38khz.html.md)) The Vishay TSOP38438 is a general-purpose modulated IR receiver for IR-based remote-control projects. It features a wide operating voltage range of 2.5 V... ## Pricing - **Price:** $6.65 (inc GST) — $6.05 AUD, exc GST - **Quantity discounts:** 10+ $5.80 (exc GST) · 25+ $5.62 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 17 and Aug 18. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-2471:1` (comma-separated SKU:qty pairs) and share the link. 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Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This IR demodulator from Vishay is a general-purpose receiver for IR-based remote-control projects. It is intended as detector for data formats that are modulated at 38 kHz and have at least 10 cycles/burst; popular IR-codes that meet these requirements are NEC, Sharp, and r-step (our [Mini IR Remote Control](https://core-electronics.com.au/catalog/product/view/sku/POLOLU-2777) uses NEC encoding, so it works well with the TSOP38438). The module’s output signal can be directly connected to a microcontroller; no additional external components are required. See the [TSOP38438 datasheet](https://core-electronics.com.au/attachments/localcontent/tsop384_1317485093f.pdf) (132k pdf) for more information. For a similar IR detector that is tuned for a 56 kHz carrier frequency, see the [Vishay TSOP34156](https://core-electronics.com.au/vishay-tsop34156-ir-detector-module-56khz.html). **Modulated IR detector comparison** | Part | [TSOP34156](https://core-electronics.com.au/vishay-tsop34156-ir-detector-module-56khz.html) | TSOP38438 | [TSSP58P38](https://core-electronics.com.au/vishay-tssp58p38-ir-detector-module-38khz-automatic-gain-3-pack.html) | [TSSP58038](https://core-electronics.com.au/vishay-tssp58038-ir-detector-module-38khz-fixed-gain-3-pack.html) | |---|---|---|---|---| | 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:** 2.5 V to 5.5 V - **Carrier Frequency:** 38 kHz - **Package:** Through-hole with 0.1" lead spacing See the [TSOP384 datasheet](https://core-electronics.com.au/attachments/localcontent/tsop384_1317485093f.pdf) (132k pdf) for more detailed specifications. **People often buy this product together with:** | [![Vishay TSOP34156 IR Receiver Module, 56kHz](https://core-electronics.com.au/attachments/localcontent/0J5067_3312331d49.jpg)](https://core-electronics.com.au/vishay-tsop34156-ir-detector-module-56khz.html) | [Vishay TSOP34156 IR Receiver Module, 56kHz](https://core-electronics.com.au/vishay-tsop34156-ir-detector-module-56khz.html) | |---|---| | [![Mini IR Remote Control](https://core-electronics.com.au/attachments/localcontent/0J8553_2984b48601.jpg)](https://core-electronics.com.au/catalog/product/view/sku/POLOLU-2777) | [Mini IR Remote Control](https://core-electronics.com.au/catalog/product/view/sku/POLOLU-2777) | |---|---| | [![FEETECH FS90-FB Micro Servo with Position Feedback](https://core-electronics.com.au/attachments/localcontent/0J9681_58940d04c0.jpg)](https://core-electronics.com.au/feetech-fs90-fb-micro-servo-with-position-feedback.html) | [FEETECH FS90-FB Micro Servo with Position Feedback](https://core-electronics.com.au/feetech-fs90-fb-micro-servo-with-position-feedback.html) | |---|---| **File downloads** - **[TSOP384xx IR receiver datasheet](https://core-electronics.com.au/attachments/localcontent/tsop384_1317485093f.pdf) (132k pdf)** Datasheet for the Vishay TSOP382 and TSOP384 lines of IR receiver modules for remote control systems. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_7642.jpg)