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New Line of Synthesizers
GED completed development of a family of both phase-locked and direct digital synthesizers. Phase-locked synthesizers feature low noise signals
up to 8 GHz. Direct digital synthesizers (DDS) feature high resolution (less than 1 Hz step size). Both families can be customized to meet your specific requirements.
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Basics
Frequency synthesis is the generation of a frequency or frequencies which are exact multiples of a reference frequency. Usually the reference frequency is very precise
and the synthesized frequencies are selectable over some range of whole-numbered multiples of a submultiple of the reference; that is the reference frequency is given by:
ƒOUT = nƒREF ⁄ M
where n and M are integers, n varies from Nmin to Nmax and M is constant. The reference frequency, ƒREF, is typically a
precision frequency source such as a crystal oscillator or a rubidium reference.
Synthesizer Types
There are basically three different types of synthesizers: direct, indirect and direct digital synthesis (DDS). Direct synthesis is when the reference signal is manipulated
by summing and multiplying with mixers, dividers and multipliers. Indirect synthesis is when a voltage controlled oscillator is phase locked to a reference. DDS is when a signal is
digitally constructed and processed through an digital-to-analog converter. GED offers all three types of synthesizers.
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320 South Pacific St.
San Marcos, CA 92078
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| Phone: | (760) 591-4170
(760) 591-4095 |
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| Fax: | (760) 591-4164 |
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| Email: | info@gedlm.com |
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