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cpldtodds
- dds信号发生器程序设计，框图，基于CPLD控制的DDS数字频率合成器设计-dds signal generator program design, block diagram, the CPLD based on DDS Digital Frequency Synthesizer Design
MC145159PLL
- 基于MC145159的PLL频率合成器设计与实现 介绍了锁相环路频率合成器的基本原理,分析了集成锁相环芯片M C 145159的工作特性,给出了集成锁相环芯片M C 145159的一个应用实例,为高频频率合成器的设计提供了一个较好的思路.测试结果证明了设计的合理性与实用性,系统频率稳定度优于10-7.-MC145159 PLL frequency synthesizer design and realization of PLL frequency synthesizer the basic
A.spur-free.fractional-N.pll
- A new PLL topology and a new simplified linear model are presented. The new fractional-N synthesizer presents no reference spurs and lowers the overall phase noise, thanks to the presence of a SampleJHold block. With a new simulation methodology it i
dual.band.GMSK.transmitte
- This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and digital-to-analog converter (DAC) circuit elemen
Driving_Buzzer_by_PWM
- The purpose of this document is to present how to use the Timer for the generation of a PWM signal tunable in frequency and duty cycle. As an application example, this document is based on a basic “music” synthesizer through an external buzzer. Examp
DDSdevelop
- 此为使用DDS直接数字频率合成器之设计报告,作者相当的详细介绍DDS之原理以及使用Altera之FPGA做设计,供使用者参考.-This is the use of DDS Direct Digital Synthesizer Design report, the authors considerable detail on the principle of DDS and the use of Altera
111
- 数字鉴相器,数字锁相环频率合成系统FPGA的实现,很有借鉴价值-Digital phase detector, digital PLL frequency synthesizer system FPGA realization of referential value
Aidio
- 摘要：应用CXA1019S芯片完成接收机混频、中放、解调等的设计，并用芯片BU2614以PLL 频率合成的方法产生稳定的本振和控制输入调谐回路的谐振频率，从而实现电调谐。单片机采用 MCS-51系列对频率合成器BU2614进行控制，加上键盘、显示和存储器电路，可实现多种程控搜 索、电台存储等功能。-Abstract: The complete receiver chip CXA1019S mixer, amplifier, demodulator, such as design, a
FPGAFrequencySynthesizer
- FPGA实现的直接数字频率合成器，本文基于DDS的基本原理,利用Altera公司的FPGA芯片FLEX10系列器件完成了一个DDS系统的设计。 -FPGA digtal Frequency Synthesizer
sji
- 频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中，它可以作为干扰信号发生器；在测试设备中，可作为标准信号源，因此频率合成器被人们称为许多电子系统的“心脏”。直接数字频率合成（DDS——Digital Direct Frequency Synthesis）技术是一种全新的频率合成方法，是频率合成技术的一次革命。本文主要分析了DDS的基本原理及其输出频谱特点，并采用VHDL语言在FPGA上实现。对于DDS的输出频谱，一个较大的缺点是：输出杂散较大。针对这一缺点本文使用了两个方法
MC145159ofPLLDesign
- MC145159的PLL频率合成器设计与实现-MC145159 of PLL Frequency Synthesizer Design and Implementation
Direct_Digital_Synthesizer_AD9852_and_application_
- 直接数字频率合成器AD9852的原理及应用-Direct Digital Synthesizer AD9852 and application of the principle
Schematic_Radioi_Airplan_FMwithSynthesizer
- Schematic_Radioi_Airplan_FM with Synthesizer
dds9851
- 本文主要介绍的是采用直接数字频率合成的短波信号发生器，它主要以微电脑控制部分、直接数字频率合成（DDS）部分、数字锁相环频率合成部分、背光液晶显示部分、功率放大部分等组成。该软件系统采用菜单形式进行操作，操作方便明了，增加了很多功能。它通过启动DDS后，把内存缓存区的数据送到DDS后输出相应的频率，并把数据转换为BCD码，送到液晶显示器进行显示。该系统输出稳定度、精度极高，适用于当代的尖端的通信系统和精密的高精度仪器。-This paper describes the use of direct
AD9910
- AD9910说明书。AD9910是一款内置14 bit DAC的直接数字频率合成器（DDS），支持高达1 GSPS的采样速率。AD9910采用高级DDS专利技术，在不牺牲性能的前提下可极大降低功耗。DDS/DAC组合构成数字可编程的高频模拟输出频率合成器，能够在高达400 MHz的频率下生成频率捷变正弦波形。-AD9910 manual. AD9910 is a built-in 14 bit DAC for direct digital frequency synthesizer (DDS),
ADF4118
- 该频率合成器ADF4116可用于家庭 实施本地振荡器的上变频和下变频 各款无线接收器和发射器。-The ADF4116 frequency synthesizer can be used for domestic implementation of the local oscillator in the upconversion and downconversion sections of wireless receivers and transmitters.
ad9852
- ad9852 CMOS 300 MSPS Complete DDS synthesyserher. IBIS model. AD9852 digital synthesizer is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter to form a digitally programm
AD9852_Schematic
- AD9852 CMOS 300 MSPS Complete DDS synthesizer. Complete SCHEMATICS. AD9852 digital synthesizer is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter to form a digitally pr
ad9954ysv
- AD9954: 400 MSPS, 14-Bit, 1.8 V CMOS, Direct Digital Synthesizer. IBIS model. The AD9954 is a direct digital synthesizer (DDS) that uses advanced technology, coupled with an internal high speed, high performance DAC to form a complete, digitally p
Fast-Switching-PLL-Synthesizer
- A 10μs Fast Switching PLL Synthesizer for a GSM/EDGE Base-Station.介绍快速跳频锁相环的非常好的一篇文章！-A 10μs Fast Switching PLL Synthesizer for a GSM/EDGE Base-Station.A very good article on the fast frequency hopping phase-locked loop is introduced!