General Description
The HT16x2Tx/HT12x2Tx are a series of encoders which include a 300M~450MHz ASK transmitter for remote control system applications. These highly integrated devices are true “switch-in, antenna-out” monolithic devices. They are capable of encoding information consisting of N address bits and 16- N data bits. Each address/data input can be set to one of two logic states. The programmed addresses/data is transmitted together with the header bits via RF upon receipt of a trigger signal. The capability to select a DATA trigger on the HT16x2Tx/HT12x2Tx further enhances the application flexibility of the 216 series of encoders.

FEATUREs
● Operating voltage: 2V ~ 3.6V
● Low standby current: 1µA (typ.) at VDD=3V
● Data trigger function
● Provides 2 compound Data trigger pins
● Minimum four transmission words
● Integrated oscillator – no external resistor
● Positive polarity data codes
● Integrated complete UHF transmitter
● Frequency range 300MHz to 450MHz
● Support ASK/OOK modulation
● Output power up to 10dBm
● Minimal external components
● 20-pin SSOP

APPLICATIONs
● Burglar alarm systems
● Smoke and fre alarm systems
● Personal alarm system
● Car/Garage door controllers
● Home/offce/car security systems
● Cordless telephones
● Other remote control systems