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EVLA Synthesizers

Explore the L30x and L301 synthesizers with cutting-edge specifications, exceptional phase noise performance, and innovative software integration for efficient manufacturability and servicing. These modules provide reliable frequency control in the 10-20 GHz range, equipped with dual DDS daughter cards and MIC block integration. Enhance your RF systems with these bargain-priced reference sources.

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EVLA Synthesizers

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  1. EVLA Synthesizers Terry Cotter LO/IF Group Leader

  2. Local Oscillators 2 – 12-20 GHz per antenna 4 – 10-15 GHz per antenna Identical “Mother Boards” Daughter cards

  3. Module Features • Emphasis on Manufacturability • Emphasis on servicing • Labview to Calibrate / Troubleshoot

  4. L30x Synthesizer L30x Synthesizer showing Daughter Cards and MIB

  5. Dual DDS Daughter Card

  6. L301 L301 Main Features • 12 – 20 GHz EM YIG (18W @ 20 GHZ) • 256 MHz Step • 128 MHz IF • 512 / 128 Mhz Reference • Phase Noise –115 dBc @100 kHz @ 14 Ghz • ~13 fs 100 kHz to 1 Mhz

  7. L301 Block

  8. L301 Phase Noise

  9. L301 Integrations • 100 KHz – 1 Mhz • 0.124 deg • 21 fs • -110 dBc @ 100 KHz • 16 GHz • “Bargain” reference source

  10. L302 • 10.8 – 14.8 GHz PM YIG (3W @ 10 GHz) • Dual Loop • Continuous Tuning (DDS Resolution) • 128 MHz Reference • Phase Noise –104 @ 100 kHz @ 12 GHz • 38 fs (100 kHz to 1 MHz)

  11. L302 Block

  12. L302 Phase Noise

  13. L302 Integrations • 100KHz - 1MHz • 0.172 deg • 37 fS • -97 dBc @ 100 KHz • 12.9 GHz • “Bargain” reference source

  14. Software • Common Tasks • “Smart” Image Loading • Cal factors stored in synth EEPROM

  15. Phase v. TempL302’s v. 128 ref

  16. Integrated Module • Cost reduction ~$3 - $4K in quantity • Integrated RF “Output” module. • Sampling Mixer v. Comb gen / Mixer • Ability to monitor actual frequencies of DDS and Microwave in L302. • Ability to monitor frequency to >= 18 GHz in L301. (Prescaler not spec’d, but probably functional)

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