September 2002 Newsletter. ELVA-1.

ELVA-1 Millimetre Wave Division Newsletter 09/2002

Contents:

1. Ku-band Digitally Controlled MER-VCO series Synthesizer
2. Digital Driver Unit with Linearization for Solid State Voltage Controlled Attenuators VCVA series

Ku-band Digitally Controlled MER-VCO series Synthesizer

With new MER-VCO series Synthesizer, ELVA-1 Millimeter Wave Division widens the instrumentation product range for a series of digitally controlled synthesizers. The MER-VCO series Synthesizer has TTL-logic 13bit frequency control word that allows 100KHz step size for output frequency.
The synthesizer unit is compact enough and could be installed as external component within a case of other instrumentation equipment.

ELVA-1 can build MER-VCO series Synthesizer for any custom frequency from 4GHz to 26GHz. Customers who need upper frequencies can be provided with ELVA's IMPATT Active Frequency Multipliers (see http://www.elva-1.com/products/microwave/IMPATT-26-150.html ) to deliver frequencies from 26GHz to 150GHz.

See MER-VCO series Synthesizer specs and phase noise oscillogram at http://www.elva-1.com/products/measurement/kb-s.html

Digital Driver Unit with Linearization for Solid State Voltage Controlled Attenuators VCVA series

An analogue driver unit for VCVA, announced at our June Newsletter, got its digital "twin".

Main Features

0-50dB, covered in 255 steps
8bit input control code allows 255 steps of attenuation, one character per attenuation setting
<100 盜 switching time
Built-in capability of linearization of attenuation
Precisely calibrated for VCVA when shipped

ELVA's Digital Driver Unit DVC-RS232 series intended for PC-based control on the Voltage-Controlled Variable Attenuators VCVA series through RS-232 serial port. The main feature of the driver is its built-in linearization capabilities of attenuation. The 12bit internal code allows DVC-RS232 logic chipset to linearize an attenuation curve with attenuation accuracy not worse than 0.1dB. Each driver is precisely calibrated with an each specific VCVA, and they both are shipped as whole unit.

See DVC-RS232 specs and linearization plot at http://www.elva-1.com/products/microwave/dvc-232.html page.
For more info on ELVA's Voltage-Controlled Variable Attenuators VCVA series please visit http://www.elva-1.com/products/microwave/att.html page.

For more info and specs requests please email sales@elva-1.com

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