FEATURES
I Wide operating voltage 2 – 6 volts I Low standby power consumption I On-chip R/C oscillator, no crystal required I Four time transmission with polarity checking I Maximum of 4,194,304 combinations encoding capability I Minimize external components I Easy interface with RF, Ultrasonic or Infrared transmission media I Bonding option available to maximize encoding capacity with 4 possible addressing states. (0, 1, open and 4th state) GENERAL DESCRIPTION
The VD5026/7/8 are encoder / decoder chip set fabricated with low-power high performance CMOS LSI technology. The VD5026 is an encoder and VD5027/8 are decoders, which are designed to be used together for application in various digital code transmitter – receive systems. The VD5026 will encode twelve bits of information and serially transmit this information upon receipt of a transmit enable, TE (active low) signal. Twelve inputs may be encoded in (i) two state addressing mode (0, 1), (ii) three state addressing mode (0, 1, open), (iii) four state addressing mode (0, 1, open and 4th state) allowing 2 (4096), 3 (531,441), 4 (4,194,304) different codes respectively.
