Product Review
Wideband PLLs promise enhanced noise and spurious performance
Janine Love2/6/2012 6:46 PM EST
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Hittite Microwave Corporation has released two SMT packaged wideband phase-locked-Loop (PLL) with integrated voltage controlled oscillators (VCOs), the HMC833LP6GE and the HMC834LP6GE . These devices provide phase noise and spurious performance for high performance cellular/4GWiMax infrastructure, repeaters and femtocells, communications test equipment, CATV equipment, very high data rate radios, phased array and DDS replacement applications.
The HMC833LP6GE has low noise, wide band, fractional-N PLL with an integrated VCO with a fundamental frequency of 1500 MHz to 3000 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler. According to the manufacturer, such features allow the HMC833LP6GE to generate frequencies from 25 MHz to 6000 MHz. The HMC834LP6GE is a low noise, wide band, fractional-N PLL that features an integrated VCO with a fundamental frequency of 2800 MHz - 4200 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler. Combined, they allow the HMC834LP6GE to generate frequencies from 45 MHz to 1050 MHz, from 1400 MHz to 2100 MHz, from 2800 MHz to 4200 MHz, and from 5600 MHz to 8400 MHz.
The two devices offer phase noise and spurious performance across all frequencies to minimize blocker effects and improve receiver sensitivity and transmitter spectral purity. The noise floor of less than -170 dBc/Hz suits multiple applications: LO for RF mixers, a clock source for high-frequency data-converters, or a tunable reference source for ultra-low spurious applications. The HMC833LP6GE and the HMC834LP6GE also feature 9 dB of programmable RF output power control (3 dB steps) and an output mute function with over 40 dB of isolation across the entire operating frequency range. An “Exact Frequency Mode” enables users to generate output frequencies with 0 Hz frequency error.
The HMC833LP6GE and the HMC834LP6GE are assembled in 6 x 6 mm plastic leadless surface mount packages and support operation over the -40 °C to +85 °C temperature range. The HMC1060LP3E is housed in a 3 x 3 mm plastic leadless surface mount package.
More information:
HMC833LP6GE
HMC834LP6GE
The HMC833LP6GE has low noise, wide band, fractional-N PLL with an integrated VCO with a fundamental frequency of 1500 MHz to 3000 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler. According to the manufacturer, such features allow the HMC833LP6GE to generate frequencies from 25 MHz to 6000 MHz. The HMC834LP6GE is a low noise, wide band, fractional-N PLL that features an integrated VCO with a fundamental frequency of 2800 MHz - 4200 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler. Combined, they allow the HMC834LP6GE to generate frequencies from 45 MHz to 1050 MHz, from 1400 MHz to 2100 MHz, from 2800 MHz to 4200 MHz, and from 5600 MHz to 8400 MHz.
The two devices offer phase noise and spurious performance across all frequencies to minimize blocker effects and improve receiver sensitivity and transmitter spectral purity. The noise floor of less than -170 dBc/Hz suits multiple applications: LO for RF mixers, a clock source for high-frequency data-converters, or a tunable reference source for ultra-low spurious applications. The HMC833LP6GE and the HMC834LP6GE also feature 9 dB of programmable RF output power control (3 dB steps) and an output mute function with over 40 dB of isolation across the entire operating frequency range. An “Exact Frequency Mode” enables users to generate output frequencies with 0 Hz frequency error.
The HMC833LP6GE and the HMC834LP6GE are assembled in 6 x 6 mm plastic leadless surface mount packages and support operation over the -40 °C to +85 °C temperature range. The HMC1060LP3E is housed in a 3 x 3 mm plastic leadless surface mount package.
More information:
HMC833LP6GE
HMC834LP6GE
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