DV251001 Microchip Technology, DV251001 Datasheet - Page 26

• Manufacturer Part Number: DV251001
• Description: KIT DEVELOPMENT CAN MCP2510
• Manufacturer: Microchip Technology

Specifications of DV251001

• Main Purpose: Interface, CAN Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2510, MCP2515
• Primary Attributes: Stand alone CAN Controller with SPI
• Silicon Manufacturer: Microchip
• Application Sub Type: CAN
• Kit Application Type: Interface
• Silicon Core Number: MCP2510, MCP2515
• Kit Contents: Board Cable Power Supply CD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Lead Free Status / RoHS Status: na, Lead free / RoHS Compliant
• Other names: DV251001R; DV251001R

dsPIC30F Speech Encoding/Decoding Library
The dsPIC30F Speech Encoding/Decoding Library
performs toll-quality voice compression and voice
decompression. The library is based on a modified
version of Speex source code and features a 16:1
compression ratio. It samples speech at 8 kHz and
compresses it to a rate of 8 kbps. Storing compressed
speech for playback requires approximately 1 Kbyte of
memory for each second of speech.
Features
Key features of the library include:
• Fixed 8 kHz sample rate
• Fixed 8 kbps output rate
• PESQ-based Mean Opinion Score: 3.7-4.2 (out of 5.0)
• Code Excited Linear Prediction (CELP)-based coding
• Two analog input interfaces – codec or on-chip
• Two analog output interfaces – codec or
• Optional Voice Activity Detection
• Playback-only applications will benefit from the
• Storing compressed speech requires 1 KB of
• Off-chip support for playback of long speech samples
• Royalty free (only one-time license fee)
• Full compliance with Microchip MPLAB
• “dsPIC30F Speech Encoding/Decoding Library
• Designed to run on dsPICDEM™ 1.1 Demonstration
DS30177T-page 20
Ordering Information:
SW300070-EVAL
SW300070-5K
SW300070-25K
SW300070-100K
DS70146
Development Systems Ordering Guide
12-bit ADC
on-chip PWM
Speech Encoder Utility. It allows you to make
encoded speech files from your desktop using a PC
microphone or WAV file
memory per second of speech
C Compiler Tools
User’s Guide” (DS70154) is provided to help the user
understand and use the library
Board (DM300014)
dsPIC30F Speech Encoder/Decoder Library Software License (Evaluation Only)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 5K units)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 25K units)
dsPIC30F Speech Encoder/Decoder Library Software License (Up to 100K units)
“dsPIC30F Speech Encoding/Decoding Library Product Overview”
®
C30
Resource Requirements
Decoder:
Playback Interface: Si-3000 Audio codec or PWM
Computational Power: 3 MIPS
Program Flash Memory: 15 KB
RAM*: 3.2 KB
Encoder:
Sampling Interface: Si-3000 Audio codec or 12-bit ADC
Computational Power: 19 MIPS (worst case)
Program Flash Memory: 33 KB
RAM*: 5.4 KB (1.2 KB is scratch)
* Full-duplex support is presently not possible due to RAM requirements,
but support will be provided with future devices. Half-duplex support is
now possible and requires 6.8 KB of RAM.
© 2005 Microchip Technology Inc.