To offer all RF tuner circuits in a single small package, ANADIGICS, Inc. today announced the launch of the AIT1032.

 

The device, according to the company, is a fully integrated, 1 GHz tuner that enables crystal-clear video in CATV set-top boxes, DVRs, PC TV tuner cards, and other tuner-on-board applications.

 

It provides two 45 MHz IF outputs where one is for digital signals and another is for analog signals, company officials say. With an adjustable IF amplifier stage having 45dB of gain control range, the digital output offers 78dB conversion gain, they say. The analog output provides 65dB conversion gain via a fixed IF output amplifier. With 35dB of gain control range, the single RF input to the device contains a low noise amplifier. Reducing component count and getting rid of any post-assembly manual adjustments, the device provides on-chip oscillator tank circuits. The AIT1032 is optimized to avoid interference in MoCA-enabled applications, according to ANADIGICS.

 

The device also is designed to provide the low noise and low distortion performance required for superb video quality by incorporating the upconverter, downconverter, VCO, synthesizer, RF and IF amplifier, and RF and IF gain control functions into a single package, according to the company. The modern CATV systems combine digital and analog channel lineups together using a densely loaded spectrum. These CATV systems need devices such as AIT1032 for improved functioning, according to the product’s developer.

 

The AIT1032 is available with a full reference design and operates from a single +5V supply. The device is available now at a price of $4.31 in quantities of 5,000 units and offered in a 7mm-by-7mm-by-1 mm 48-pin surface mount package.

 

Ron Michels, senior vice president and general manager of ANADIGICS’ Broadband Business, said, “ANADIGICS’ AIT1032 is a complete RF tuner solution which employs such a high degree of integration that it significantly reduces the amount of external circuitry required, while at the same time providing a robust, high-performance solution that minimizes sensitivity to board layout variations. As the industry moves toward a fully digital video delivery, the performance of this double conversion tuner will enable set-top box designers to make the transition from analog to digital architectures without dramatically changing their product designs.”