No abstract

A completely integrated single-chip phase locked loop based on a 0.2p.m gate length enhancement / depletion AlGaAs / CaAs / AIGaAs-HEMT technology has been designed and characterized. The chip contains a VCO with 34 CHz center frequency, a dynamic frequency divider by two, a static divider by eight, a phase detector, and a loop filter. The chip size is 2.0 x 1.5 mmz. The power consumption is 7.2 W at a supply voltage of -5.0 V. The locking range is approximately f 700 MHz.