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PT2249 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
PT2249100Yes

PT2249 is an infrared remote control encoder IC manufactured by Princeton Technology.

The PT2249 is an infrared remote control encoder IC manufactured by Princeton Technology.

Specifications:

  • Supply Voltage: 2.2V to 5.5V
  • Operating Current: 1.5mA (typical at 3V)
  • Standby Current: <1μA
  • Oscillator Frequency: 455kHz (external resonator required)
  • Output Type: Open-drain
  • Package: SOP-16, DIP-16
  • Transmission Code: 12-bit address, 4-bit data
  • Modulation Frequency: 38kHz (typical)

Descriptions:

The PT2249 is a low-power CMOS remote control encoder IC designed for infrared (IR) transmission. It encodes a 12-bit address and 4-bit data into a modulated signal for IR remote control applications. The IC supports multiple key inputs and features a power-saving standby mode.

Features:

  • Low Power Consumption: Suitable for battery-operated devices.
  • Multiple Key Inputs: Supports up to 12 address and 4 data inputs.
  • Built-in Oscillator: Requires an external 455kHz resonator.
  • Modulated Output: Generates a 38kHz carrier signal for IR transmission.
  • Standby Mode: Reduces power consumption when inactive.
  • Wide Operating Voltage: Compatible with 2.2V to 5.5V power supplies.

This IC is commonly used in consumer electronics such as TVs, air conditioners, and other remote-controlled devices.

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