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Anadigics rolls out splitter for STB apps

Posted: 26 Apr 2005 ?? ?Print Version ?Bookmark and Share

Keywords:active splitter? anadigics? aps3604?

The new active splitter from Anadigics Inc. replaces discrete low-noise amplifier (LNA) and splitter circuitry, and provides three output paths supporting two- and three-tuner systems for signals up to 1.1GHz.

Designed for multiple-tuner television and STB applications, the APS3604 features high integration that reduces the component count and PCB space requirements for advanced televisions with features such as picture-in-picture and for multiple tuner STBs with personal video recording (PVR) and digital video recording (DVR) functionality.

"Our new active splitter eliminates front-end gain control at the tuner and extends the input frequency range above 1GHz to provide television and STB manufacturers with an integrated, high performance solution that reduces component count and PCB space requirements," explained Ron Michels, VP of Broadband Products at Anadigics.

The highly integrated 5-by-5mm APS3604 amplifies a balanced RF input signal in the 50MHz to 1.1GHz frequency range using highly linear, low noise amplification stages, and splits the signal into three balanced outputs. Independent gain control in each path eliminates the need for front-end gain control in tuners that follow the APS3604 in the receiver chain. The overall linearity of each tuner path is maintained across a wide gain control range, ensuring low distortion on each independently-controlled output signal. The company added that its new product provides an industry leading noise figure of 4.8dB at maximum gain and requires only a single 5V power supply.

The APS3604 is priced at $3.90 in quantities of 1,000 units. Samples are already available.



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