參數(shù)資料
型號： DSPIC33FJ128GP706-I/PT
廠商： Microchip Technology
文件頁數(shù)： 51/90頁
文件大?。?/td> 0K
描述： IC DSPIC MCU/DSP 128K 64TQFP
產(chǎn)品培訓(xùn)模塊： dsPIC33F DMAC
Introduction to dsPIC33F Architecture Part 1
Asynchronous Stimulus
Introduction to dsPIC33F Architecture Part 2
特色產(chǎn)品： PIC24FJ/33FJ MCUs & dsPIC? DSCs
標(biāo)準(zhǔn)包裝： 160
系列： dsPIC™ 33F
核心處理器： dsPIC
芯體尺寸： 16-位
速度： 40 MIP
連通性： CAN，I²C，IrDA，LIN，SPI，UART/USART
外圍設(shè)備： AC'97，欠壓檢測/復(fù)位，DMA，I²S，POR，PWM，WDT
輸入/輸出數(shù)： 53
程序存儲器容量： 128KB（128K x 8）
程序存儲器類型： 閃存
RAM 容量： 16K x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 18x10b/12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 64-TQFP
包裝： 托盤
產(chǎn)品目錄頁面： 654 (CN2011-ZH PDF)
配用： DM300024-ND - KIT DEMO DSPICDEM 1.1
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
MA330012-ND - MODULE DSPIC33 100P TO 84QFP
MA330011-ND - MODULE DSPIC33 100P TO 100QFP
DM300019-ND - BOARD DEMO DSPICDEM 80L STARTER
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
AC164327-ND - MODULE SKT FOR 64TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
2005 Microchip Technology Inc.
Preliminary
DS70155C-page 53
dsPIC33F
11.9
Noise Suppression Library
The dsPIC DSC Noise Suppression Library provides a
function to suppress the effect of noise interfering with
a speech signal. This function is useful for microphone-
based applications which have a potential for incoming
speech getting corrupted by ambient noise captured by
a microphone. It is especially suitable for systems in
which an acoustically isolated noise reference is not
available, such as:
Hands-Free Cell Phone Kits
Speakerphones
Intercoms
Teleconferencing Systems
Headsets
As a front end to a Speech Recognition or Speech
Encoding system
Any microphone-based application that needs to
eliminate undesired noise
Any application that needs to eliminate noise
interference from signals received over a
communication channel
The Noise Suppression Library uses an 8 kHz sampling
rate. However, the library includes sample rate
conversion functions that ensure interoperability with
libraries and speech sampling peripherals configured for
higher sampling rates (9.6 kHz, 11.025 kHz or 12 kHz).
Key features of the Noise Suppression Library include:
All functions can be called from either a ‘C’ or
assembly application program
Full compliance with the Microchip C30
C Compiler, Assembler and Linker
Precompiled library archive files
Highly optimized assembly code, utilizing DSP
instructions and advanced addressing modes
Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
10-20 dB noise reduction depending on type of
noise
“dsPIC30F Noise Suppression Library User’s Guide”
Demo application source code is provided
Accessory Kit available for purchase includes:
audio cable, headset, oscillators, microphone,
speaker, DB9 M/F RS-232 cable, DB9M-DB9M
null modem adapter and can be used for library
evaluation
TABLE 11-5:
RESOURCE REQUIREMENTS
11.10 Acoustic Echo Cancellation Library
The
Acoustic
Echo
Cancellation
(AEC)
Library
provides a function to eliminate echo generated in the
acoustic path between a speaker and a microphone.
This function is useful for speech and telephony
applications in which a speaker and a microphone are
located in close proximity to each other and therefore,
susceptible to signals propagating from the speaker to
the
microphone
resulting
in
a
perceptible
and
distracting echo effect at the far end. It is especially
suitable for these applications:
Hands-Free Cell Phone Kits
Speakerphones
Intercoms
Teleconferencing Systems
For hands-free phones intended to be used in compact
environments, such as a car cabin, this library is fully
compliant with the G.167 standard for Acoustic Echo
Cancellation.
Like the Noise Suppression Library, the Acoustic Echo
Cancellation
Library
also
includes
sample
rate
conversion functions.
Key features of the AEC Library include:
All functions can be called from either a ‘C’ or
assembly application program
Full compliance with the Microchip C30
C Compiler, Assembler and Linker
Precompiled library archive files
Highly optimized assembly code, utilizing DSP
instructions and advanced addressing modes
Echo cancellation for 16, 32 or 64 ms echo delay
or ‘tail length’ (configurable)
Fully tested for compliance with G.167
specifications for in-car applications
Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
Convergence Rate: up to 43 dB/sec.,
typically > 30 dB/sec.
Echo Cancellation: Up to 50 dB, typically > 40 dB
“dsPIC30F Acoustic Echo Cancellation Library
User’s Guide”
Demo application source code is provided
Accessory Kit available for purchase
TABLE 11-6:
RESOURCE REQUIREMENTS
Algorithm
MIPS
Flash
RAM
Noise Suppression
3.3
7 KB
1 KB
Sample Rate Conversion
1.0
2.6 KB
0.5 KB
Note:
The user application might require an
additional 1 KB-1.5 KB for data buffering
(application-dependent).
Algorithm
MIPS
Flash
RAM
AEC – 64 ms Echo Tail
16.5
6 KB
5.7 KB
AEC – 32 ms Echo Tail
10.5
6 KB
3.4 KB
AEC – 16 ms Echo Tail
7.5
6 KB
2.6 KB
Sample Rate Conversion
1.0
2.6 KB
0.5 KB
Note:
The user application might require an
additional 2 KB-2.5 KB for data buffering
(application-dependent).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
dsPIC33FJ128GP706T-I/PT 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 40MIPS 128KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ128GP708A-E/PT 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16Bit 40MIPS 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ128GP708A-I/PT 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16Bit 40MIPS 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ128GP708AT-I/PT 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16Bit 40MIPS 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ128GP708-E/PT 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16B MCU DSP 80LD 40MIPS 128KB FLASH RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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