参数资料
型号: DSPIC33FJ12GP201-I/P
厂商: Microchip Technology
文件页数: 53/90页
文件大小: 0K
描述: IC DSPIC MCU/DSP 12K 18DIP
产品培训模块: Asynchronous Stimulus
标准包装: 25
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: I²C,IrDA,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 13
程序存储器容量: 12KB(12K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 6x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 18-DIP(0.300",7.62mm)
包装: 管件
配用: DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
AC164327-ND - MODULE SKT FOR 64TQFP
2005 Microchip Technology Inc.
Preliminary
DS70155C-page 55
dsPIC33F
11.13 Speech Encoding/Decoding
Library
The Speech Encoding/Decoding Library performs toll-
quality voice compression and voice decompression.
The library is based on a modified version of the Speex
speech encoder/decoder source code and features a
16:1 compression ratio. It samples speech at 8 kHz and
compresses it to a data rate of 8 kbps. Storing
compressed
speech
for
playback
requires
approximately 1 KB of memory for each second of
speech. The library is especially suitable for the
following voice-based applications:
Answering Machines
Building and Home Safety Systems
Intercoms
Smart Appliances
Voice Recorders
Walkie-Talkies
Any Application using Message Playback
A PC-based speech encoder utility program allows you
to create your own encoded speech files for playback.
Encoded speech files are made from either a PC
microphone or existing WAV file. Once you create the
encoded speech files, they are added to your MPLAB
C30 project, just like a regular source file, and built into
your application. The speech encoder utility allows you to
select four target memory areas to store your speech file:
program Flash memory, RAM and external Flash
memory. External Flash memory allows you to store
many minutes of speech (1 minute of speech requires
60 KB) and it is supported through a general purpose I/O
port.
Key features of the Speech Encoding/Decoding Library
include:
PESQ-based Mean Opinion Score: 3.7-4.2
(out of 5.0)
Code Excited Linear Prediction (CELP) based
coding
2 Analog Input Interfaces – codec or on-chip ADC
2 Analog Output Interfaces – codec or
on-chip PWM
Optional Voice Activity Detection
Storing compressed speech requires 1 KB of
memory per second of speech
Royalty-free (only one-time license fee)
Full compliance with Microchip MPLAB C30
C Compiler Language Tools
“dsPIC30F Speech Encoding/Decoding Library
User’s Guide”
Designed to run on dsPICDEM 1.1 General
Purpose Development Board (DM300014)
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相关代理商/技术参数
参数描述
dsPIC33FJ12GP201T-I/SO 功能描述:数字信号处理器和控制器 - DSP, DSC 12KB FLSH 1KB RAM 16B DSC nanoWatt RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
DSPIC33FJ12GP202-E/ML 功能描述:数字信号处理器和控制器 - DSP, DSC 12KB FLSH 1024BRAM 16B nanoWatt RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
DSPIC33FJ12GP202-E/SO 功能描述:数字信号处理器和控制器 - DSP, DSC 12KB FLSH 1024BRAM 16B nanoWatt RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
DSPIC33FJ12GP202-E/SP 功能描述:数字信号处理器和控制器 - DSP, DSC 12KB FLSH 1024BRAM 16B nanoWatt RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT
dsPIC33FJ12GP202-E/SS 功能描述:数字信号处理器和控制器 - DSP, DSC 12KB Flash 1KB RAM21 I/O 16B nanoWatt RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT