Control 44: RF Encoder/Decoder

Control44 is a 4 bit address, 4 bit data encoder and decoder combined in a single IC. This device can operate in either Encode or Decode mode. It uses 1kbps differential Manchester bit balancing with preamble and checksum. CTR44 is specifically designed to be used in RF remote control applications. It is available in 20pin SSOP, 18pin SOIC and PDIP packages.

Features

Operating voltage (temperature):
3.0V-5.5V for standard version (-40?C to +125?C)
2.0V-5.5V for low voltage version (-40?C to +85?C)
Draws <2mA without external load
4 bit address and 4 bit data
16different remotes with 4 controls each
Single packetised transmission for fast activation
Maximum usuage of the range capability of an RF module
Adequate preamble to settle data slicer in the receiver .
Extra wake up preamble to allow for transmitter power up time requirements
Differential Manchester encoding of address, data and checksum
Synchronisation codes and checksum to reduce false triggering on noise
Suitable to be used with Narrow Band FM radio modules
Ceramic resonator or crystal oscillator up to 20MHz
Data rate up to 5.6kbps
Minimum external component requirement
4 wire, push button and latched push button modes
Custom address, data bit variations available subject to minimum order quantity