AMICCOM is an IC design company in Asia that also specializes in SRD (short-range wireless communications) and satellite communications LNB RF IC design companies. Shengke Electronics released a new generation of satellite communication products in January 2013, named A7533. A7833 is a Single LNB satellite receiver chip, suitable for satellite frequency-reducing receivers, and has completed mass production procedures and supply.
A7833 is a new generation of Ku-band satellite frequency-reduction receiving chip, supporting 9.75GHz and 10.6GHz frequency bands. And built-in 22KHz detector (Tone Detector), polarity voltage detector (Polarity Voltage Detector), and can directly drive the pHENT bias. The A7833 also integrates the DC / DC Buck power management function. It can work directly with the voltage (11V ~ 21V) output from the set-top box. The average operating current (excluding pHENT power consumption) is about 42mA, and no additional Power chip.
Shengke's reference design requires only 32 parts. Crystal selects 25MHz to support the 9.75GHz and 10.6GHz bands. Overall, using A7833 can provide customers with time-saving / low-cost production plans.
Availability and packaging
The A7833 is available in a 4 mm x 4 mm QFN-24 package, and Shengke and its authorized agents are now available. Welcome to contact authorized agents to obtain IC samples and evaluation modules and start development work.
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