PT2262 Remote Control Decoder IC DIP-18

Description

PT2262 Remote Control Decoder IC DIP-18 The PT2262 is a CMOS-based remote control encoder designed to generate serial coded waveforms for wireless transmission. Its primary function is to encode the logic states set on its address and data pins into a specialized digital stream. This encoded signal is then output via the DOUT pin, ready to be modulated onto a carrier frequency for RF (Radio Frequency) or IR (Infrared) transmission, forming the foundation of a one-way wireless communication link. The encoder creates a “Code Word” consisting of up to 12 “Address/Data” bits followed by a synchronization bit. Each bit’s waveform (representing a logic ‘0’, ‘1’, or floating ‘f’) is defined by a specific pattern of pulses based on the chip’s internal oscillator timing. For reliable transmission, the PT2262 automatically transmits each complete Code Word four times in succession, creating a robust “Code Frame” that helps the paired receiver (PT2272) correctly decode the signal amidst potential interference. Operation is initiated by pulling the active-low /TE (Transmit Enable) pin to ground. The chip remains in a low-power stand-by mode until this occurs. The encoding process and waveform synthesis happen in real-time at the moment of transmission, using the pin states present when /TE is activated. An external single resistor connected between the OSC1 and OSC2 pins sets the chip’s fundamental operating frequency, which is crucial for synchronizing the encoder with its corresponding decoder. Features: Utilizes CMOS Technology. Low Power Consumption. Very High Noise Immunity. Up to 12 Tri-State Code Address Pins. Up to 6 Data Pins. Wide Operating Voltage Range (Vcc = 4V ~ 15V). Single Resistor Oscillator. Supports Latch or Momentary Output Type. Available in DIP and SOP packages. Specifications: Parameter Symbol Condition Min. Typ. Max. Unit Absolute Maximum Ratings Supply Voltage: Vcc -0.3 16.0 V Operating Temperature: Topr -40 +85 °C Storage Temperature: Tstg -65 150 °C DC Electrical Characteristics Supply Voltage: Vcc 4 15 V Stand-by Current: ISB Vcc=12V, Pins Open 0.1 1 Pinout Diagram: Footprint Diagram: Applications: Car Security System. Garage Door Controller. Remote Control Fan. Home Security/Automation System. Remote Control Toys. Remote Control for Industrial Use. Package Contents: 1x PT2262 Remote Control Decoder IC DIP-18 Datasheet

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