News

16 February 2009

 

Anadigics launches NIM reference design for home gateway subsystems

Anadigics Inc of Warren, NJ, USA has introduced a cable television NIM (network interface module) reference design that incorporates its AIT1042 integrated RF tuner (launched last October) and STMicroelectronics’ ST0297E QAM demodulator with A/D converter, offering a cost-effective turnkey tuner-demodulator subsystem that eliminates complicated RF front-end design issues.

Jointly developed by Anadigics and STMicroelectronics, the design enables OEMs to deploy the latest RF tuner and QAM demodulator technologies via a ready-to-implement solution that reduces the footprint, cost and development time typically required to bring new cable TV set-top boxes and home gateway products to market, says Anadigics.

The full-NIM reference design is engineered to offer a complete and highly optimized hardware-and-software solution that allows cable products to be quickly field tested, qualified, and brought to mass production. The platform comes with full design support, including circuit schematics, printed circuit board layout, bill of materials, and core software.

Set-top box makers can either build on the design or customize it to meet their specific requirements, applying the reference design directly to their main PCB for a ‘tuner-on-board’ solution. Manufacturers of canned tuners can use the higher levels of integration offered by the design to reduce the number of discrete components in a full-NIM tuner/demod solution. The reference design meets or exceeds the requirements of cable operators in Japan, China, Europe, and other regions employing ITU-T J.83 Annex A/C and DVB-C bit streams.

The AIT1042 is developed for use in CATV and HDTV tuners, set-top boxes and PC TV tuner cards. The highly integrated design minimizes board layout sensitivities, reduces the amount of external circuitry required for a complete receiver solution, and condenses board layout space. The RF tuner device includes an upconverter with RF gain control, a downconverter, a digital IF amplifier with gain control, a dual phase-locked loop (PLL) synthesizer, and a voltage-controlled oscillator (VCO) with integrated tank circuits, all in a single 7mm x 7mm x 1mm surface-mount package.

“China, Japan, and other markets require a small, competitive, high-performance solution for CATV set-top boxes,” says senior product marketing manager Ray Aubert. “This reference design satisfies that need.”

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