GENERAL DESCRIPTION
The UAA2068AHL BiCMOS device integrates a 950 MHz VCO, a frequency doubler, main and reference dividers and a phase comparator, to implement a phase-locked loop for DECT channel frequencies. The 1.9 GHz signal is buffered and switched, in TX mode, to drive the transmit power amplifier (CGY20xx series) or, in RX mode, to be used as an LO signal for the receiver mixer IC (UAA3540TS).

FEATURES
• Economical integrated solution for frequency generation in DECT cordless telephones
• Integrated low phase noise 950 MHz VCO with frequency doubler
• Local Oscillator (LO) drive (−14 dBm) for RF mixer circuit
• Dedicated DECT PLL synthesizer
• 3-line serial interface bus
• 3 dBm output preamplifier with an integrated switch
• Low current consumption from 3 V supply
• Compatible with Philips Semiconductors ABC baseband chip (PCD509x series).

APPLICATIONS
• 1880 to 1920 MHz DECT cordless telephones.