HT6P20B2T3 Datasheet, PDF (1/12 Pages) Holtek Semiconductor Inc – 2 Encoder with ASK Transmitter

HT6P20B2T3/D2T3/F2T3
2²⁴ Encoder with ASK Transmitter
Features
· Complete UHF transmitter
· Frequency range 300MHz to 450MHz
· ASK modulation
· Output Power to 10dBm
· Low external part count
· Low voltage operation (down to 2.0V)
· 2²⁴ maximum address and data codes
· Data active: D0~D4
Applications
· Burglar alarm system
· Smoke and fire alarm system
· Garage door controllers
· Car door controllers
· Security systems
· Cordless telephones
· Other remote control systems
General Description
The HT6P20x2T3 is a CMOS LSI encoder designed for remote control system applications. It
encodes 24 bits of information and then serially transmits it via the PAOUT pin upon receipt of
transmission enable (DATA pins: D0~D4) signals. In addition, the device offers various packaging for
flexible combination of address/data so as to meet the needs of various applications. Its address/data is
transmitted together with the anti-code bits using an RF transmission medium upon receipt of a trigger
signal.
The device is a high performance, easy to use, single chip ASK Transmitter IC for remote wireless
applications in the 300 to 450MHz frequency band. This transmitter IC is a true ²data-in, antenna-out²
monolithic device and offers high performance in terms of power delivery and operating temperature.
Regarding power, the device is capable of delivering up to 10 dBm into a 50W load, which enables a
small form factor transmitter to operate near the maximum limit of transmission regulations. As for
temperature, the device can operate from -40°C to 85°C whose range is wider than SAW operation
range. Being easy to use, the device only needs a reference frequency (RF carrier frequency divided by
32 times) generated from a crystal with a few additional external parts to create a complete versatile
transmitter. The device operates with ASK/OOK (Amplitude Shift Keying/On-Off Keyed) UHF
receiver types from wide-band super-regenerative radios to narrow-band, high performance
super-heterodyne receivers.
Rev. 1.00
1
September 13, 2010