MA300015 Microchip Technology, MA300015 Datasheet - Page 25

• Manufacturer Part Number: MA300015
• Description: MODULE PLUG-IN DSPIC30F 80QFP
• Manufacturer: Microchip Technology

Specifications of MA300015

• Accessory Type: Plug-in Module (PIM) - dsPIC30F6010A
• Peak Reflow Compatible (260 C): Yes
• Mcu Supported Families: DsPICDEM 1.1 Plus
• Leaded Process Compatible: Yes
• Supported Devices: DsPIC30F6010A
• Development Tool Type: Hardware - Daughter Card
• Silicon Manufacturer: Microchip
• Core Architecture: DsPIC
• Core Sub-architecture: DsPIC30
• Silicon Core Number: DsPIC30F
• Silicon Family Name: DsPIC30F6xxx
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: dsPICDEM Boards (DM300014 or DM300019)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Full-duplex operation
Computational Power:
Program Flash Memory:
PIC24/dsPIC® DSC
G.711 Speech Encoding/Decoding Library
Summary
The PIC4/dsPIC® Digital Signal Controller (DSC) G.711
Speech Encoding/Decoding Library performs toll-quality
voice compression and voice decompression. The library
is an implementation of the ITU-T G.711 standard on the
dsPIC DSC. The encoding algorithm used is either A-law
or μ-law companding (user-selectable), and features a :1
compression ratio. G.711 uses minimal computational
resources, and a well-defined API makes it easy to
integrate with the application.
The G.711 library can be used for both half-duplex and
full-duplex systems. However, due to its high output data
rate, it is most suitable for full-duplex communications
applications that do not need to store the encoded
speech for subsequent playback. Some target
applications include:
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A flexible analog interface gives your design several
options to consider. The speech encoder samples
speech at 8 kHz using either an external codec or the on-
chip 1-bit Analog-to-Digital Converter (ADC). The speech
decoder plays decoded speech through an external
codec or the on-chip Pulse Width Modulator (PWM).
Storing compressed speech for playback requires 8 KB of
memory for each second of speech.
A PC-based Speech Encoder Utility program creates
encoded speech files for playback. Encoded speech files
are made from either a PC microphone or existing WAV
file. Once the encoded speech files are created, they
are added to an MPLAB® IDE project, just like a regular
source file, and built into the application.
Resource Requirements
Intercoms
Emergency phones
Walkie-talkies
Mobile hands-free kits
Digital radios
Voice-over-IP telephony
1 MIPS
3 KB
www.microchip.com
Features
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Devices Supported
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dsPIC30F6014
dsPIC30F6014A
dsPIC30F6013
dsPIC30F6013A
dsPIC30F601
ey features of the G.711 Speech Encoding/Decoding Library:
5.0)
Utility. Encoded files can be created from the desktop using
a PC microphone or WAV file.
second of speech
language tools
Library User’s Guide assists in using the library
Development Board
Fixed 8 kHz input sample rate
Fixed 64 kbps output data rate
PESQ-based Mean Opinion Score (MOS): 4.3 to 4.5 (out of
A-law or μ-law based coding
Two analog input interfaces – codec or on-chip ADC
Two analog output interfaces – codec or on-chip PWM
Playback-only applications benefit from the Speech Encoder
Storing compressed speech requires 8 KB of memory per
FREE library
Full compliance with Microchip’s MPLAB® C30 C compiler
PIC4/dsPIC DSC G.711 Speech Encoding/Decoding
Designed to run on dsPICDEM™ 1.1 General Purpose
dsPIC30F601A
dsPIC30F6011
dsPIC30F6011A
dsPIC30F5013
dsPIC30F5011
dsPIC33FXXXGPXXX
DS01033C-5