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TH72031
868/915MHz FSK Transmitter
Features
! Fully integrated PLL-stabilized VCO ! Frequency range from 850 MHz to 930 MHz ! Single-ended RF output ! FSK through crystal pulling allows modulation
from DC to 40 kbit/s ! High FSK deviation possible for wideband data
transmission ! Wide power supply range from 1.95 V to 5.5 V ! Very low standby current ! On-chip low voltage detector
! High over-all frequency accuracy ! FSK deviation and center frequency independ-
ently adjustable ! Adjustable output power range from
-12 dBm to +9.5 dBm ! Adjustable current consumption from
5.1 mA to 13.