Satellite tuner circuit

Abstract

The invention relates to a package structure of a down-conversion chip and a satellite tuner circuit. The package structure includes: a lead frame, including a bare chip layout area and a plurality of pins, and the plurality of pins surround the bare chip layout area Setting: a first die and a second die, the first die includes a downconversion device, the second die includes a FET structure, and the FET structure is connected to the first die for The signal amplified by the second die is input to the first die, the gate of the FET structure is connected to one of the pins, and this pin is used as a radio frequency signal input lead of the down-conversion chip package structure foot. The down-conversion chip structure can reduce circuit area, improve circuit integration, thereby reducing cost, increase gain, reduce noise, and improve circuit performance.

Description

technical field [0001] The invention relates to the field of packaging technology, in particular to a down-conversion chip packaging structure and a tuner circuit. Background technique [0002] With the rapid development of information technology and the rapid development of integrated circuits, the most important and core low-noise down-conversion technology in integrated circuits has also been greatly developed. With the rapid development of satellite technology in recent years, Ku-band satellite TV can be seen everywhere and plays an increasingly important role in people's daily entertainment life. People are increasingly inseparable from the variety of satellite TV. [0003] The low-noise down-conversion is located at the front end of the receiver and at the back end of the low-noise amplifier. Its main function is to modulate the RF signal to the intermediate frequency. It plays a vital role in extracting useful signals from the RF signal and improving the performance o...

AI Technical Summary

Problems solved by technology

In the application of the traditional AT3566 package structure in the Ku-band satellite TV tuner, not only need to use three low-noise amplifier chips AT101 and one AT3566 chip, but also need to design peripheral circuits for vertical polarization and horizontal polarization respectively. The peripheral circuit of the secondary low-noise amplifier is designed, and the peripheral circuit of the AT3566 chip is relatively complicated, which greatly increases the design cost and design time, and greatly increases the area of ​​the receiver, hindering the miniaturization of the integrated circuit. come many disadvantages

Images