Title :
An integrated GaAs 1.25 GHz clock frequency FM-CW direct digital synthesizer
Author :
Caglio, N. ; Degouy, J.-L. ; Meignant, D. ; Rousseau, P. ; Leroux, B.
Abstract :
An integrated GaAs FM-CW direct digital synthesizer (DDS) has been developed using Philips Microwave Limeil (PML) standard ER07AD technology. The DDS is composed of two successive functional blocks: a double phase accumulator which produces the right synchronizing sequences and a digital to analog sine converter (DASC) which generates the linear chirp waveform. The double phase accumulator has been implemented with five chips while the DASC is monolithic. The maximum measured clock frequency on the phase accumulator is 1.25 GHz and the power consumption is 320 mW. For the DASC, the maximum measured clock frequency is 1.5 GHz and the associated consumption is 600 mW.<>
Keywords :
FM radar; III-V semiconductors; MESFET integrated circuits; digital-analogue conversion; direct digital synthesis; field effect logic circuits; gallium arsenide; waveform generators; 1.25 GHz; 1.5 GHz; 320 mW; 600 mW; ER07AD technology; FM-CW direct digital synthesizer; GaAs; III-V semiconductor; MESFET; digital to analog sine converter; double phase accumulator; linear chirp waveform; monolithic; power consumption; radar; Analog-digital conversion; Chirp; Clocks; Frequency measurement; Frequency synchronization; Gallium arsenide; Microwave technology; Semiconductor device measurement; Standards development; Synthesizers;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1993. Technical Digest 1993., 15th Annual
Conference_Location :
San Jose, CA, USA
Print_ISBN :
0-7803-1393-3
DOI :
10.1109/GAAS.1993.394477
