Single-chip down converter using silicon technology

Designers of Ku-band digital satellite (DVB-S) receivers can now solve down-converter design in the Low Noise Block (LNB) with one silicon-based IC, for improved reliability and lower cost compared to existing discrete solutions using gallium arsenide (GaAs) components.

The TFF1004HN from NXP Semiconductors is the first integrated silicon solution on the market. It includes the pre-amplifier, mixer, buffer amplifier and PLL synthesiser, which are normally implemented using discrete GaAs components and a dielectric resonator oscillator. The TFF1004HN also guarantees stability of the local oscillator. This delivers an additional cost saving as well as enabling faster and easier design by eliminating the need for manual alignment.

The TFF1004HN supports RF input frequencies between 10.7GHz and 12.7GHz. The selectable Local Oscillator (LO) operating at 9.75GHz or 10.6GHz ensures compliance with European and Asian standards.

The HVQFN24 package measures only 4mm x 4mm x 0.85mm, delivering the industry’s smallest LNB chipset when combined with the complete NXP LNB solution comprising the UAF3000TS bias controller for supply and band/polarisation switching and the BFU725F second-stage LNA microwave transistor.

 

FEATURES Fully RF tested 9dB noise figure 32dB conversion gain Automatic supply-voltage detection: 3.3V or 5V

APPLICATIONS Ku-band DVB-S receivers for: Satellite television receivers Remote broadcast equipment

 

 

Development board TFF1004HN is available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

NXP Semiconductors: TFF1004HN