Accession Number : AD0707425

Title :   SPECTRAL DIGITAL FREQUENCY SYNTHESIZER,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Lohrmann,Dieter R. ; Sills,Arthur R.

Report Date : APR 1970

Pagination or Media Count : 40

Abstract : A new type of digital frequency synthesizer for communications transceivers in the VHF range from 30...76 MHz, providing 920 channels with 50 kHz spacing was designed, breadboarded, tested, and packaged. Wide use of integrated circuits was made. With this new principle, very low power consumption is achieved, typically 40 mW for the synthesizer (excluding the variable frequency oscillator and buffer amplifier). Dimensions (excluding frequency control knobs):1 in. X 1 1/4in. X 1 1/2 in. The circuit makes wide use of complementary FET-integrated circuits. The technology used for packaging is Thick Film. (Author)

Descriptors :   (*FREQUENCY SYNTHESIZERS, DIGITAL SYSTEMS), (*TRANSMITTER RECEIVERS, FREQUENCY SYNTHESIZERS), VERY HIGH FREQUENCY, INTEGRATED CIRCUITS

Subject Categories : Electrical and Electronic Equipment
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE