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Description: FM 接收机测试方法:
为了接收性能的比较及评价，作为规定测试方法。另外，ＦＭ ＭＰＸ 立体声接收机也适用于此测试方法
-FM receiver testing method : To compare the performance of the receiving and evaluation, as a required test. In addition, the FM stereo receiver MPX also apply to this test method
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Size: 30553 |
Author: 基本原则 |
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Description: 基于BH1414的立体声FM发射器程序,用8051控制,uV2开发环境-based on the stereo FM transmitter procedures, with 8,051 control, uV2 Development Environment
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Size: 38912 |
Author: 杨心怀 |
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Description: FM 接收机测试方法:
为了接收性能的比较及评价，作为规定测试方法。另外，ＦＭ ＭＰＸ 立体声接收机也适用于此测试方法
-FM receiver testing method : To compare the performance of the receiving and evaluation, as a required test. In addition, the FM stereo receiver MPX also apply to this test method
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Size: 30720 |
Author: 基本原则 |
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Description: 采用BH1417调频广播发射机是一种新型的广播信号发射机，特点是 (1) 采用了频率合成，频率稳定，可调
整范围宽。 (2) 采用了红外线遥控调整频率方便。 (3) 采用了高性能的立体声专用芯片，音质好，分离度高。 (4) 采用了宽带功放，整机的频率范围 30MHz---450MHz. 用途 ：广泛应用于学校的英语听力发射，和学校试验用信号源，也可用于组建大型会场的广播系统。设计要求采用单片机为控制平台能在88—108MHz范围内改变发射频率，并显示发射机的发射载波频率。发生距离不少于1公里。
-BH1417 FM radio transmitter used is a new kind of radio signal transmitter, characterized by (1) adopted a frequency synthesizer, frequency stability and adjustable range. (2) adjust the frequency of the infrared remote control convenience. (3) use of high-performance ASIC stereo, good sound quality, separation is high. (4) use of broadband power amplifier, whole frequency range of 30MHz-450MHz. Usage: widely used in school English Listening fired, and school test signal source, can also be used for the formation of large-scale broadcasting system in the venue. Design requirements for the control of the use of single-chip platform in the 88-108MHz frequency range of changes in the launch and display the launch carrier frequency transmitter. The occurrence of not less than 1 km distance.
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Size: 198656 |
Author: 王曦帆 |
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Description: AT89C2051控制BH1418FV调频立体声发射模块程序-AT89C2051 control BH1418FV FM stereo transmitter module procedures
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Size: 1024 |
Author: 陈荣 |
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Description: 5800C Fm芯片资料和驱动代码
技术特点：
*国内首颗采用CMOS工艺的调频收音机芯片；
*驱动能力强，可直接驱动耳机及放大器；
*功耗低，比国外先进方案还低1mA；
*频率覆盖从76M-108M的各国调频波段；
*高度集成度，所需外围器件数为零；
*强大的LOW-IF数字音频结构；
*强大的数字信号处理技术（DSP）,实现自动频率控制和自动增益控制；
*数字自适应噪声抑制
接受灵敏度高、音质出色、立体声效果优异；
*支持重低音，可调式电台搜寻、柔软静音和混音等功能；
*只需一个32.768K晶振作为参考时钟；
*支持I2C和SPI数字接口，支持I2S音频接口，可以配合所有多媒体处理芯片；
*可调去加重（50／75 us) ；
*模拟和数字音量控制；
*线性模拟输出电压；
*两线和三线控制接口模式；
*封装面积： 4×4mm，24-pin QFN-5800C Fm chip code data and drive
Technical characteristics:
* Domestic first CMOS process using the FM radio chip
* Drive ability, and can directly drive headphones and amplifier
* Low power consumption, advanced program than lower 1mA
* Frequency coverage from 76M-108M FM band of countries
* A high degree of integration, necessary to zero the number of peripheral devices
* LOW-IF powerful digital audio structure
* A powerful digital signal processing technology (DSP), automatic frequency control and AGC
* Digital Adaptive Noise Reduction
Acceptance of high sensitivity, excellent sound quality, excellent stereo sound effects
* To support the heavy bass, adjustable radio search, soft mute and blend functions
* Only one 32.768K crystal as a reference clock
* Support for I2C and SPI digital interface to support I2S audio interface will be in line with all the multimedia processing chip
* Adjustable de-emphasis (50/75 us)
* Analog and digital volu
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Size: 1367040 |
Author: 文社 |
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Description: 接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达到设计要求；音频功率放大器采用集成芯片LM386，电压放大倍数最大为200。-Receive part of ultra-large-scale AM/FM stereo radio IC CXA1238S as the main body, sensitivity, image rejection, signal to noise ratio and other performance indicators to meet the design requirements integrated audio power amplifier chip LM386, voltage up to 200 magnification.
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Size: 1024 |
Author: 李伟 |
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Description: 汽车音响FM收音模块。车载收音机LC72130驱动，-Car Stereo FM radio module. Car Radio LC72130-driven,
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Size: 6144 |
Author: kafukafu |
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Description: The RDA5802/03 is a single-chip broadcast FM stereo radio tuner with fully integrated synthesizer, IF selectivity and MPX decoder.
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Size: 615424 |
Author: sirkevin |
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Description: 这是数控调频发射器的汇编程序，可在80.0到109.9MHz范围内任意设置发射频率，可预置11个频道，具有单声道/立体声控制-This is the FM transmitter NC compilation process can be within the scope of 80.0 to 109.9MHz frequency arbitrarily set to launch, can preset 11 channels, with Mono/Stereo control ......
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Size: 5120 |
Author: 何渊乾 |
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Description: Low-power FM stereo radio for handheld applications
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Size: 19619840 |
Author: jinfeel, park |
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Description: SP3767HN Fm stereo radio
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Size: 391168 |
Author: erraca |
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Description: 单工无线呼叫系统分发射和接收两大部分。发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达到设计要求；音频功率放大器采用集成芯片LM386，电压放大倍数最大为200。采用PT2262/2272编码/解码电路实现了数据传输业务以及对台号的选择等功能；音频输入和数据输入可自动转换；AT89S52作为整个系统的控制部分，程序设计采用C语言在KEIL51的编译器上编程实现；显示采用128×64点阵型液晶显示。经测试，整机功能齐全，各项性能指标符合系统要求，接收波形稳定，无明显失真。-The simplex wireless-calling system consists of two parts: transmit part and receive part.The transmit part adopts the phase-locked loop pattern of frequency synthesizing technology and uses the MC145152 and MC12022 chips to compose the phase-locked loop.It locks the frequency of the carrier-wave at 35MHz.The stabilization of the carrier-wave can be 4×10-5,the accuracy can be 3×10-5.The frequency modulation and the confection of the carrier-wave are realized by the capacity-changing diode V149 and the integration voltage-control oscillator MC1648 chip.The end power amplifier uses the audion 2SC1970 to make it work in the third magnifying state,it improves the efficiency of the magnifier and the power of the output reaches the design demand.The receive part uses the super cosmically AM/FM dimensional sound stereo radio reception integration chip CXA1238S as the main part.The sensitivity、the mirror-control restrain、the SNR and every capability index all reach the design demand.The audio
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Size: 626688 |
Author: 周宇 |
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Description: Generator for FM stereo encoder
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Size: 787456 |
Author: Wat |
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Description: 调频立体声发射器QN8000的底层接口程序。-FM stereo transmitter QN8000 the bottom interface program.
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Size: 152576 |
Author: yhs |
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Description: 调频立体声基带信号
产生和测试模型
文件名：ch5example5.mdl-FM stereo baseband signal generator and test the model file name: ch5example5.mdl
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Size: 4096 |
Author: lyjustc |
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Description: 调频立体声接收机模型 对相应的立体声解码过程进行建模和仿真。设左右声道的信号分别为1000Hz和2000Hz的单频测试信号。 -FM stereo receiver model for the corresponding stereo decoding process modeling and simulation. Set left and right channel signals were 1000Hz and 2000Hz single frequency test signal.
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Size: 5120 |
Author: ln |
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Description: 本调频收音机主要由FM/AM收音机芯片CXA1019、PLL且频率合成器BU2614和单片机AT98C51组成。收音机以单片机AT98C51为控制核心, 实现全频搜索、指定频率范围搜索和手动搜索电台 本收音机还使用了数字电位器(X9511)控制音量。采用液晶显示器显示载频和时钟等信息, 大幅度降低了系统的功耗。整机实现3V 电源工作, 采用E2PROM(AT24C04)存储电台, 还增加了立体声解码功能。-Mainly by the FM radio FM/AM radio IC CXA1019, PLL and frequency synthesizer BU2614 and SCM AT98C51 composition. AT98C51 microcontroller for the control of the radio to the core, to achieve full frequency search, specify the frequency range of search and manual search radio station the radio also uses a digital potentiometer (X9511) to control the volume. Carrier frequency with LCD display and clock and other information, significantly reducing system power consumption. Machine to achieve 3V supply, the use of E2PROM (AT24C04) storage station, also increased the stereo decoding.
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Size: 320512 |
Author: 梁蛟龙 |
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Description: 是FM调频立体声的调制解调的matlab仿真代码，实现了对双声道语音的调制和解调，非simulink方式，完完全全的matlab代码-This is for FM stereo radio signal modulation and de-modulation code. it is not for matlab simulink, it is completely matlab code, you can follow it and for understanding FM stereo signal generate very well.
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Size: 1105920 |
Author: 袁斌 |
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Description: FM Stereo modulator FPGA
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Size: 2054144 |
Author: Dusit
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