TSSP77038TR

TSSP77038TR is a 38 kHz infrared (IR) remote-control receiver from the TSSP family. It integrates the preamplifier, automatic gain control, 38 kHz band-pass filter, and a demodulator, delivering a clean digital output that represents the demodulated remote data stream. It’s designed for consumer electronics remote controls and works with common 38 kHz protocols.
Key points:
- Supply: single supply 2.7–5.5 V; low current (a few milliamps).
- Output: TTL/CMOS-compatible digital signal; idle output is high, data pulses pull the output low (active-low).
- Package: typically 3 pins (Vcc, GND, OUT) in Tape & Reel (TR) packaging for automated assembly.
- Application: microcontroller-based IR remote receivers in TVs, set-top boxes, audio gear, etc.
Usage: connect Vcc to 3–5 V, GND to ground, read Out with a microcontroller and decode the remote protocol using software.

Equivalent products to the TSSP77038TR (38 kHz IR demodulating receiver) include:
- Vishay TSOP1738
- Vishay TSOP1838
- Vishay TSOP4838
- VS1838B
- HS0038B
Note: check pinout and package compatibility, but these are common 38 kHz IR demodulating receivers with 5V supply.

Here are the typical features of the TSSP77038TR:
- 38 kHz infrared remote-control receiver with integrated preamplifier, limiter, AGC, and digital demodulator
- No external components required; 38 kHz bandpass tuned for common remotes
- Demodulated data output is CMOS/TTL-compatible and active-low
- 3-pin device: Vcc, GND, Out; Tape & Reel (TR) packaging
- Supply voltage: 4.5–5.5 V (typical 5 V)
- Current consumption: approximately 8–12 mA at 5 V
- Works with common protocols (e.g., NEC, RC5/RC6, Sony SIRC)
- Wide operating temperature (typically -25°C to +85°C)
- Robust ambient-light/EMI immunity with internal filtering
- ESD/transient protection and robust, compact SMD package

- Pin count: 3 pins (GND, Vcc, OUT).
- Function: 38 kHz IR remote-control receiver/demodulator with built-in preamplifier and AGC; outputs a demodulated, active-low digital data stream representing the received remote command.

- Manufacturer: Vishay Intertechnology, Inc. (Vishay Semiconductors).
- What kind of company: A multinational electronics components company that designs and manufactures discrete semiconductors and passive components (resistors, capacitors, inductors, diodes, transistors, optoelectronics, IR receivers, etc.).

Applications of TSSP77038TR:
- 38 kHz IR remote-control receivers for consumer electronics
- TVs, set-top boxes, DVD/Blu-ray/audio equipment
- Home appliances (air conditioners, microwaves, ovens, refrigerators)
- Remote-controlled lighting and smart home devices
- Any system requiring a demodulated IR signal output (line-of-sight remote controls)

The TSSP77038TR uses a 3-pin surface-mount package (SOT‑23/SC‑70 family); TR means tape-and-reel packaging.