调谐器

一种用于电视调谐器的宽带CMOS低噪声放大器设计

A Wide-Band CMOS Low-Noise Amplifier for TV Tuner Applications

低噪声UHF电子调谐器

A Low Noise UHF Electronic Tuner

我们根据需要直接利用PC，研制了一个基于PC的数字调谐器测试系统。

We design a measurement system based on PC in PC directly .

用于数字电视调谐器的宽带CMOSVCO设计

A Wideband CMOS VCO for Digital TV Tuners

UHF调谐器可变电容器设计计算

Design and Calculation of Variable Capacitor for UHF Tuners

UHF机械调谐器调谐电容片形的程序设计

Programming for The Design of The Shape of UHF Tuning Capacitor Piece of Mechanical Type

硬件上利用接口驱动电路实现PC并口与数字调谐器的I2C总线的连接。

The system connect IIC bus of digital tuner and parallel port of PC with interface circuit .

我发现一事实，尽管这调谐器包含一个解调器，但是可从调谐器得到I和Q输出。

I found out that despite the fact that the tuner includes a demodulator , the I and Q outputs are available from the tuner .

DVB-T调谐器及宽带锁相环的研制

Investigations on Tuner and Broadband PLL of DVB - T

大液晶显示屏幕是十全十美的，让大家观看高清晰度电影，从它的内置式高清晰度电视调谐器或hddvd驱动器。

The big LCD screen is perfect for you to watch the high definition movies from its built-in HDTV tuner or HD-DVD drive .

制作的UHF电子调谐器噪声系数为5.3分贝，自动增益控制能力达50分贝以上。

The noise figure of the tuner is 5.3 dB , and the dynamic range of AGC control is more than 50 dB .

设计了一种适用于DVB-C标准的高频调谐器中的CMOS可变增益放大器。

CMOS variable gain amplifier ( VGA ) is designed , which is suitable for the turner of digital video broadcasting-cable ( DVB-C ) .

ST公司的STV0399是一种用于数字卫星高频头的单芯片零中频解调和解码芯片，它包含零中频的调谐器、多规格解调和前向纠错单元。

STV 0399 of ST Microelectronics with zero-IF tuner , demodulation of various specification and Forward Error Correction ( FEC ), is a kind of single-chip zero-IF demodulator and decoder for digital satellite tuner .

调谐器6路接头（HCU端）

Modulator 6-way connector ( hcu end )

用0·25μm标准CMOS工艺实现了单次变频数字有线电视调谐器中的频率合成器.它集成了频率合成器中除LC调谐网络和有源滤波器外的其他模块。

A prototype PLL frequency synthesizer for a single-conversion digital cable TV tuner is integrated in a standard 0.25 μ m CMOS process , except for the LC tanks and active loop filter .

信道解调器通过I2C总线对调谐器进行控制，对接收信号增益的放大通过AGC来调节，CPU通过SPI与信道解调器进行通讯，控制前端接收模块的运行状况。

Demodulator controls the tuner by I 2C bus and magnifies the signal through AGC and CPU communicates with demodulator by SPI interface and control front receiving part .

本文叙述采用双栅砷化镓场效应晶体管和高优值硅外延变容二极管实现UHF电子调谐器低噪声化的有关设计和实验结果。

This paper reports the design and experiments of the low noise UHF electronic tuner consisting of a low noise dual-gate FET and a high merit silicon epitaxial varactor .

设计和实现了构成系统的主要单元：单片零中频调谐器、基于FPGA通用DSP的节目过滤器、QAM调制器、正交数字中频调制器、捷变型RF调制器、主控单元等部分的硬件电路；

The main parts of the system are designed and implemented , such as : Single Zero IF Tuner , Program Filter based FPGA and DSP , QAM Modulator , Digital Quadrature IF Modulate , and Adjacent Channel Modulator .

详细说明了接收机前端调谐器、DSP部分、数字基带处理模块及主处理器的设计方法，对系统方案的设计作了总结，并且预想了HDRadio系统在国内的发展前景。

Finally , it explained the design process of receiver digital tuner , DSP , digital base band signal processing module and CPU , summarized the design of this scheme , and made prospects of development of HD Radio system in China .

第五章给出滤波器的版图与仿真结果。本文提出的6阶有源RC低通滤波器适用于零中频结构的CMMB调谐器。

Chapter 5 presents the layout of the proposed filter and the simulation results . A 6th order Active RC low pass filter ( LPF ) for direct conversion architecture for CMMB tuner is presented in this thesis .

注明模具的形象，该xc3028的单芯片模拟和数字电视调谐器显示完全集成的射频到基带功能块。

Annotated die image of the XC3028 single-chip analog and digital TV tuner showing the fully integrated RF-to-baseband functional blocks .

介绍了DVB-T接收系统中调谐器的原理，主要讨论了DVB-T接收系统的调谐器选用，包括两款典型调谐器的性能对比，以及调谐器的具体应用。

This paper introduces the principle of tuner in DVB-T receiver system , and mainly discussed is the selection and implementation scheme of tuner for DVB-T receiver , including the comparison of two typical types and the application of tuners .

m标准CMOS工艺设计了适用于DVB-C标准的高频调谐器中的可变增益放大器，运用Mentor公司的Eldo工具对电路进行了仿真，仿真结果达到低功耗、低噪声、宽增益范围的设计要求。

VGA is designed for tuners , using 0.18 CMOS process , suitable for digital video broadcasting-cable ( DVB-C ), and simulated by Mentor 's simulation tool of analog circuits-Eldo . Finally results are suited for the requirements of low power , low noise , wide gain-range .

讨论了数字电视调谐器本振相位噪声，在分析直接数字频率合成器（DDS）的原理及特点的基础上，提出了一种DDS与锁相环（PLL）混合电路用于调谐器本振的方法。

This paper discussed the phase noise of a digital TV tuner local oscillator . Based on the analysis of direct digital synthesizer ( DDS ) theory and feature , it presented a method to design the tuner local oscillator using DDS hybrid PLL ( phase lock loop ) circuit .

接收到的DVB-T信号经调谐器进行下变频处理后输出中频信号，再进行COFDM（编码正交频分复用）解调，得到的TS码流信号通过USB控制器送入PC机中进行软件解码播放。

By the tuner , the DVB-T signal received has been converted to the IF signal , and then demodulated by the COFDM demodulation chip . In the end , the USB controller sends the TS ( transport stream ) to the PC where it is decoded by the software .

一种新的短波自适应天线调谐器的设计

Design of a Novel Automatic Antenna Tuning Coupler in HF Communication

高性能数字电视调谐器本振的设计与实现

Design and Implementation for High Performance Digital TV Tuner Local Oscillator

双调谐器多画面数字电视机的微机控制技术

The microcomputer control technique for double tuner multi-picture digital TV set

电子调谐器在视频点播系统机顶盒中的应用

Application of electronic tuner in topset of video on demand system

天线调谐器阻抗匹配网络与调谐算法研究

Research of Impedance Matching Network and Tuning Algorithm of Antenna Tuner