登录
首页 » Asm » volcontrol

volcontrol

于 2007-12-30 发布 文件大小:23KB
0 243
下载积分: 1 下载次数: 97

代码说明:

  近段时间闲来无事做了一款AV和HI-FI两用的前级,采用音量音调处理芯片PT2322完成音量音调的处理,支持六声道音量0~15分贝可调,高中低音支持-7db~+7db可调,总音量支持0~79分贝可调,步进为2分贝每次,并且具有静音、3D和直通功能,不论是在听音乐还是在看电影两不误;采用pt2323实现音源输入选择和2声道转换成6声道的功能,支持四组普通立体声输入和一组DVD六声道输入,并且能够将四组立体声其中的任何一组转换成六声道,即使是用VCD看普通碟片时也能欣赏到有如DVD一样的环绕音效。由于PT2323和PT2322支持I2C总线控制,利用89c51对其进行控制,PCB板连线方便,控制简单。本板除了以上功能外,还特留有一个输出口,用来控制后面所接的功率放大模块的电源的关断,以实现遥控开关机,静音时也将功率放大模块的电源模块关断,以实现节能的目的。本电路还有一个重要特点,整个电路采用单5V电源供电,接口简单,连线方便,便入摩机用。人对电路操作主要有两种方式,一是通过键盘来进行控制,二是通过配有的红处的遥控接收头来控制,遥控器可选市面上很容易买到的由TC9148型的遥控器即可。本人提供少量PCB板,供爱好音响和单片机的同行做实验, 如有需要也可提供全套散件或成品板。 (err)

文件列表:

volcontrol.doc

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • chuankou_MFC
    通过MFC实现上位机与下位机的串口通讯,可自配置。(Through MFC to achieve the host computer and the next bit machine serial communication, self configuration.)
    2016-07-21 21:26:17下载
    积分:1
  • 电子时钟
    stm32f103c8t6、ds1302的电子时钟电路+程序设计(Electronic clock circuit + program design of stm32f103c8t6 and DS1302)
    2020-07-13 15:08:51下载
    积分:1
  • bootloader-2017-9-26-old
    说明:  该工程是基于LPC1857单片机开发的数控程序,包含了SDRAM、EMMC驱动代码,还在单片机上移植了UCOSIII系统,并在此基础上移植了FATFS文件系统、LWIP1.4.1网络协议栈。该工程是实际项目中的源码,稳定性绝对有保障,供大家参考。(The project is based on LPC1857 microcontroller development of CNC program, including SDRAM and EMMC driver code, and also transplanted UCOSIII system on MCU. On this basis, FATFS file system and LWIP1.4.1 network protocol stack were transplanted. The project is the source of the actual project, the stability is absolutely guaranteed for everyone's reference.)
    2018-01-03 14:57:08下载
    积分:1
  • ESP8266_TCP
    涵盖一些模块在stm32f4下的代码,有dht11,ds18b20,mq-7等模块的代码,还有一些通讯的代码,如:usart iic等(It covers the code of some modules under stm32f4, such as dht11, ds18b20, mq-7, and some communication codes, such as USART iic, etc.)
    2018-11-28 11:01:20下载
    积分:1
  • modbus软件实战 ModbusMaster
    说明:  modbus软件开发实战,适用于各种工业控制(Modbus software development practice, suitable for various industrial control)
    2020-06-20 05:00:01下载
    积分:1
  • DS18B20_LCD1602_C51
    读取DS18B20进行温度测量以后的结果并在1602液晶上显示。 基于DS18B20的温度控制器。温度控制范围在20~30℃,当温度大于30度时,停止加热,小风扇通电开始降温,绿灯亮。温度低于20度时,小风扇停止通电,开始加热。红灯亮。全过程有LCD数字温度显示。(Read DS18B20 temperature measurement after the results of the 1602 LCD display. Based on DS18B20 temperature controller. Temperature control range of 20 to 30 ℃, when the temperature is greater than 30 degrees, stop heating, small fan is energized to start cooling the green light. When the temperature is below 20 degrees, a small fan is stopped is energized, the heating is started. Red light. The whole process of LCD digital temperature display.)
    2013-03-08 10:13:36下载
    积分:1
  • CPP
    Basic manual for programming in c++
    2013-12-05 07:56:28下载
    积分:1
  • STM32F030C8T6-FreeRTOS
    这是FreeRTOS移植到STM32F0系列单片机的实例,已经验证成功,成功的驱动了LED,24L01,SPI,ADC等等外设。源码已经测试通过无误。(This is FreeRTOS transplanted to STM32F0 MCU instance, has been verified successfully, the success of driven LED, 24L01, SPI, ADC and so on peripherals. Source code has been tested correctly.)
    2015-12-19 21:44:33下载
    积分:1
  • 13054738835032
    显示器功能 加快程序开发初学者的进步脚步。让他们了解简单的显示程序的写法(Monitor function to accelerate the pace of progress in program development for beginners. So that they understand the simple display program wording)
    2013-10-29 22:36:50下载
    积分:1
  • AD_DMA
    研华数据采集的一个的demo文件,很好用,可以作为里程看,也可以作为现场采集数据的一个简单程序(Advantech data acquisition a demo file, very easy to use, you can see as mileage, can also be used as the data collected at the scene of a simple progra)
    2020-09-10 11:08:01下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载