AC164033 Microchip Technology, AC164033 Datasheet - Page 26
![ADAPTER 28QFN TO 18DIP](/photos/9/1/90145/ac164033_sml.jpg)
AC164033
Manufacturer Part Number
AC164033
Description
ADAPTER 28QFN TO 18DIP
Manufacturer
Microchip Technology
Specifications of AC164033
Module/board Type
Socket Module - DIP
Convert From
28-QFN
Convert To
18-DIP
Connector Type
IC Adapter
Kit Contents
Adapter 28L QFN To 18L DIP For PICSTART Plus & PROMATE II W/AC164012
No. Of Contacts
18
Socket Mounting
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
PRO MATE - II™/PRO MATE™
For Use With
AC164010 - MODULE SKT PROMATEII DIP/SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
AC164033R
AC164033R
AC164033R
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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.
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