LQ-SYN6288TTS语音合成原理图
杰理AC6928A蓝牙、插卡单声道音箱方案原理图.PDF
Ｂ、单声道、带过热保护功能音频功放
R4 10K
2、蓝牙匹配电路参数以调试结果为准 3、为保证产品的安全可靠性，电池必须用带保护板的电池。
频偏偏差：±10PPM以内 电容：晶振匹配电容位置请预留
Y1 OSCI
24MHZ OSCO
Ｃ、宽工作电压范围2.5V—7V D、超低EMI，高效率，音质优
DACVDD
ADC12/PR1
VCOM
RTCVDD
DACVSS
VBAT
VDDIO
PWMH2H/ADC9/AUX0R/PB5
20 19 18 17 16 15 14 13 12 11
OSCO OSCI GND BT_RF BTAVDD AD_KEY C16 MUTE RTCVDD C17 VBAT PP/LED C4
２、8W输出功率设置： A、８W功率输出的条件:
MUTE C5 105
U1 1 SD 2 BYP
HX8358 VOP 8 GND 7
SPL1 1
+
NC
NC
4 3
C1
C2
VDD=6V，RL=2Ω，Po=8W，THD+N≤10% B、８W功率输出设置:
VBAT R1 33K
3 MODE 4 IN
VDD 6 VON 5
B
TF卡电路
13
12
+3.3V
TF1
4R7 R25
SD_CMD
SD_CLK
SD_DAT R16 3K
1 2 3 4 5 6 7 8 9
DAT2 DAT3 CMD VDD CLK VSS DAT0 DAT1 SW DECT
TI杯电子设计正文1
TI杯电子设计正文1所用TI公司（德州仪器Texas Instruments）元器件清单：TMS320LF2407AOPA2340PATPS5430DDATPS5433IDRTLC5510SN74LVC4245and location. Which can be controlled through the keyboard with laser targeting, and can automatically control the laser guns to automatic shooting. Experiments show that the system has basically reached the requirements of the design.KEY WORDS :automatic shooting distinguish capacity1. 方案设计1.1 总体方案论证与比较1.1.1核心控制电路的论证与选择方案一：FPGA系统实现采用数字电路系统进行逻辑分析，其具有多进程，实时性高，响应触发信号快等优点，可以由目前比较主流的FPGA实现。
通过VHDL语言编程，配置FPGA内部逻辑门资源可以实现该设计的逻辑要求关系。
但使用FPGA具有编程复杂和电路复杂的缺点。
方案二：DSP技术实现该方案基于TMS320LF2407A设计，运用DSP技术，通过摄像头采集光源进行图像分析。
其为TI公司(德州仪器Texas Instruments)推出的一款定点DSP控制器。
其负责整个系统的控制，包括按键扫描，LCD显示驱动，外置DAC，ADC驱动，大量数据处理等。
它采用了高性能静态CMOS技术，减小了控制器的功耗；40MIPS的执行速度提高了控制器的实时控制能力；集成了32KB的Flash程序存储器，高达1.5KB的数据/程序RAM，544B双口RAM（DRAM）和2KB的单口RAM（SARAM）。
蓝牙音响设计原理图参考
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MTK原理图
手机原理图分析一、手机基本电路框图：二、基带CPU（MT6226）内部框图：1、组成部分：z DSP：主要完成对语音信号的编解码、信道编码、加密、交织处理等；z ARM7：主要是对外部Memory接口、用户接口（LCD、键盘、触摸等）、语音接口、射频接口、电源管理等的命令控制，使各部分协调工作。
2、基带部分语音编码过程（DSP）：GSM标准规定时隙宽为0.577ms，8个时隙为一帧，帧周期为0.577×8＝4.615ms。
因此，用示波器观测GSM移动电话机收发信息，会看到周期为4.615ms、宽0.577ms的突发脉冲。
基带部分电路包括信道编/译码、加密/解密、TDMA帧形成/信道分离及基准时钟电路，它还包括话音/译码、码速适配器等电路。
来自送话器的话音信号经过8kHz抽样及A/D转换，变成13bit均匀量化的104kbit/s数据流，再由话音编码器进行RPE－LTP编码。
编码输入为每20ms一段，经话音编码压缩后变为260bit，其中LPC－LTP为72bit，RPE为188bit。
话音编码后的信号速率为13kbit/s。
同时话音编码器还提供话音活性检测(vAD)功能，即当有话音时，其SP信号为1；当无话音传输时，将SP示为0(即SID帧)。
13kbit/s 话音信号进入信道编码器进行编码。
对于话音信号的每20ms 段，信道编码器首先对话音信号中最重要的Ia 类50bit 进行分组编码(CRC 校验)，产生3bit 校验位，再与132bit 的Ib 类比特组成185bit ，再加上4个尾比特“0”，组合为189bit ，这189bit 再进入1/2速率卷积码编码器，该编码限制长度为5，最后产生出378bit 。
这378bit 再与话音信号中对无线信道最不敏感的II 类78bit 组成最终的456bit 组。
同样，对于信令信号，由控制器产生并送给信道编码器，首先按FIRE(法尔)码进行分组编码(称为块编码)，然后再进入1/2卷积编码，最后形成456bit 组。
PM66语音芯片资料
PM66语音芯片PM66系列是中青世纪科技公司于2009年推出的一款智能语音产品。
该系列芯片在使用方式及外部电路上基本可以和PM50系列兼容，但较PM50具有录音时间更长，放音音质更佳的优势，是一个整合了录放音电路，快闪存储，ADPCM编、解码器，功率放大器，稳压器等线路的全功能录放系统。
因为我们已经把它包装成标准的COB-28管脚，所以使用者可以很方便的将PM66设计整合到需要录放音的场合上，只需接上电源、喇叭、按键，PM66就是一个独立的声音播放系统。
★功能特点◎存储时间长 ( 40～4000秒) ◎ 8个输入脚，4个输出脚◎ 仅需电源、扬声器、按键即可工作◎ 自由组合录音段和声音段◎ 宽范围的采样频率 ( 4k～20kHz ) ◎ 弹性的工作电压( 3～5V )◎内置抗干扰精密稳压器◎ 多种LED闪烁频率设置( 1～12Hz )◎ 按键触发及串并行微控制器控制工作模式★电气特性工作电压： DC 3～5V工作电流：最大不超过 60 mA（PWM输出方式、接8欧姆喇叭时）静态电流：小于 2 uA★实物图片图1 PM66语音芯片实物图片（有DIP28，DIP16两种封装）图2 PM66编程器实物图1 PM66语音芯片型号及引脚定义（1）PM66系列按照录音时间区分，共有6种产品型号，下表为各种型号在不同的采样频率下可存放的时间对照表。
（2）PM66引脚定义及实际图片2 PM66的典型应用电路及控制方式（1）、并行模式、按键操作在PM66系列芯片的并行控制方式下可以分8段语音录放，K1～K8脚可以分别触发与其对应的8段语音（低有效），在烧录芯片的时候，可以设置为下降沿触发或者低电平触发。
K1～K8端口有内置上拉电阻和防抖动设计，可直接外接按键来触发放音。
也可用单片机口线直接对其操作。
如图1：图1 并行按键模式，PMW音频输出方式接线图连接扬声器的两种方式（PWM和DAC）音频输出方式的选择，首先需要在编程软件中设定，烧写芯片后按照以下说明连接。
完整word版,HS6288E多功能噪声分析仪说明书
HS6288E型多功能噪声分析仪使用说明书国营四三八○厂嘉兴分厂一概述HS6288E型多功能噪声分析仪是一种便携式智能化的噪声测量仪器，它集积分、噪声统计、噪声采集等几种功能于一体，在设计和功能上都有许多创新，能满足多种测量要求，主要性能指标符合JJG188—2002声级计检定规程要求。
本仪器具有大屏幕液晶显示，测量结果可长期保存在仪器内，最多可以存储500组单组数据和4组整时数据，通过内置RS-232C接口可在现场或事后用微型打印机打印出来或传送至计算机中。
本仪器结构紧凑、造型美观、功能多、自动化程度高，可用于环境噪声的测量，也可用于劳动保护、工业卫生及各种机器、车辆、船舶、电器等工业噪声测量。
二主要技术性能1传声器：Φ12.7mm(1/2″)驻极体测试电容传声器2测量范围：35dB~130dB3频率范围：20Hz~12.5kHz4频率计权：A、C计权5时间计权：快（F）、慢（S）6检波器特性：LMS真有效值，峰值因数37级量程：设高、中、低三档，每档线性范围≥60dB。
8测量时间设定：10s、1min、5min、10min、15min、20min、30min 、1h、8h、24h、24h整时、Man (人工)。
时钟：年、月、日、时、分、秒自动运行。
9自动测量功能：L A、Leq、、L N(L5、L10、L50、L90、L95)、SD、Lmax、Lmin、Ld、Ln、Ldn等10测量数据自动存储:500组。
11显示器：大屏幕液晶显示具有模拟表针、背光源显示等功能。
12输出接口：交流输出、直流输出、RS-232C接口。
13延伸电缆：视用户要求可配5米、10米、15米、20米14电源：5节LR6(5号) 高能碱性电池，并设有外接电源插入插孔。
15外形尺寸：l×b×h(mm) 290×80×3016质量：480g17环境条件：温度-10℃～50℃、相对湿度 20%～90%三工作原理与主要功能1 内有日历时钟，关机后还可长期准确运行，不用每次开机重新设定。
康佳电视进入总线方法
康佳彩电总线进入方法详解1．康佳彩电18大系列K/N系列、SK系列、S系列、SE系列、SA系列、A系列、C系列、E系列、F系列、ST系列、TA8880CN机芯（画中画系列）、倍频机芯、W机芯（背投系列）、T系列(数字高清)、I系列(数字高清)、M、FM系列(数字高清)、FG、FT系列(数字高清)、MV系列(数字高清)。
2.1 K/N系列2.1.1彩电配置一览表主要IC：超级芯片TDA9380或TDA93832.1.2总线调整方法机型：TDA9380掩膜后的型号为CKP1402SA，代表机型有：P2162K、T2168K、T2168N、P2179K、T2176N、T2176K等；TDA9383掩膜后的型号为CKP1403SA，代表机型有：T3468K、P3460K、P2960K、P2961K、P2962K、P2962K1、P2998K、T2975K、T2968K、T2976K、T2968N、P2562K、P2579K、T2568K、T2568N按MENU(菜单)键调出菜单显示(注：菜单显示时间为10s)，在菜单未消失前连续按回看键5次便可进入工厂调整菜单。
按MENU键可依次选择菜单1到菜单4。
选中需调整的菜单后，可用节目+/-键选择需调整的项目(选中后变为红色)；用音量控制键调节选中项目的参数值，直至符合要求为止。
当所有调试完成后，再按一次回看键即可退出总线调整模式，回到正常收看状态。
2.1.3总线故障故障现象：接收PAL-I制信号时，伴音音轻且有杂音。
检修提示：进入维修状态，在维修菜单5内设有伴音制式设定项目，其中SOUND FILTER 即是伴音滤波器选择设定项目，数据为"00"时，选择内部SIF电路处理全制式伴音信号；"01"时，选择外部电路处理6.5MHz伴音信号；"02"时，选择外部电路处理6.0MHz伴音信号；"03"时，选择外部电路处理全制式伴音信号。
WT588D语音芯片及模块详细资料V1.8
8、脚位描述....................................................................................................................................................................... 5
6、WT588D 语音芯片应用方框图.......................................................................................................................................... 4
12.5、一线串口控制模式 ...........................................................................................................................................16
8.4、LQFP32 封装引脚对应表 ...................................................................................................................................... 8
5、应用领域....................................................................................................................................................................... 4