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Wideband VCO for Satcom
2 May 2012, Analogue, Mixed Signal, LSI
The new SMV5550B-LF VCO from Z-Communications generates frequencies between 5000 and 6000 MHz, covering the 1000 MHz bandwidth within 0 to 10 V of control. Even though the device covers a broad bandwidth, it comes in a compact package covering an area less than 64,5 mm² while exhibiting phase noise performance of -80 dBc/Hz, typically, at 10 kHz from the carrier.
The device delivers 3 ± 3 dBm into a 50 W load with a nominal 5 V supply and drawing typically 24 mA. In addition to its low noise performance, it also exhibits excellent second harmonic suppression of -35 dBc, typically, and provides better than 1,1:1 tuning linearity, making it well suited for satellite communication systems.
Load pulling is minimised to less than 10 MHz with a return loss of 20 dB in any phase while it pushes less than 20 MHz/V with a 5% change in the nominal supply. The VCO operates at a temperature range of -40°C to 85°C and is packaged in Z-Communications’ miniature SUB-L surface mount package measuring 7,62 x 7,62 x 2 mm. For more information contact Andrew Hutton, RF Design, +27 (0)21 555 8400, sales@rfdesign.co.za, www.rfdesign.co.za |
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