GENERAL DESCRIPTION
The ADF7012 is a low power FSK/GFSK/OOK/GOOK/ASK UHF transmitter designed for short-range devices (SRDs). The output power, output channels, deviation frequency, and mod ulation type are programmable by using four, 32-bit registers. The fractional-N PLL and VCO with external inductor enable the user to select any frequency in the 75 MHz to 1 GHz band. The fast lock times of the fractional-N PLL make the ADF7012 suitable in fast frequency hopping systems. The fine frequency
deviations available and PLL phase noise performance facilitates narrow-band operation.

FEATURES
Single-chip, low power UHF transmitter
75 MHz to 1 GHz frequency operation
Multichannel operation using fractional-N PLL
2.3 V to 3.6 V operation
On-board regulator
Programmable output power
   −16 dBm to +14 dBm, 0.4 dB steps
Data rates: dc to 179.2 kbps
Low current consumption
   868 MHz, 10 dBm, 21 mA
   433 MHz, 10 dBm, 17 mA
   315 MHz, 0 dBm, 10 mA
Programmable low battery voltage indicator
24-lead TSSOP