DSPIC33FJ128GP708-I/PT Microchip Technology, DSPIC33FJ128GP708-I/PT Datasheet - Page 16

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DSPIC33FJ128GP708-I/PT

Manufacturer Part Number
DSPIC33FJ128GP708-I/PT
Description
IC DSPIC MCU/DSP 128K 80TQFP
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr

Specifications of DSPIC33FJ128GP708-I/PT

Program Memory Type
FLASH
Program Memory Size
128KB (128K x 8)
Package / Case
80-TFQFP
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
CAN, I²C, IrDA, LIN, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
69
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 24x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Product
DSCs
Data Bus Width
16 bit
Processor Series
DSPIC33F
Core
dsPIC
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
69
Data Ram Size
16 KB
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
876-1001 - DSPIC33 BREAKOUT BOARDDM300024 - KIT DEMO DSPICDEM 1.1DV164033 - KIT START EXPLORER 16 MPLAB ICD2MA330012 - MODULE DSPIC33 100P TO 84QFPMA330011 - MODULE DSPIC33 100P TO 100QFPDM300019 - BOARD DEMO DSPICDEM 80L STARTERDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32AC164328 - MODULE SKT FOR 80TQFPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
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Manufacturer
Quantity
Price
Part Number:
DSPIC33FJ128GP708-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC33FJ128GP708-I/PT
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16
Line Echo Cancellation Library
This library provides a function to cancel electrical line echoes caused
by 2- to 4-wire conversion hybrids in telephone lines. The library can be
used in long distance voice communication applications, especially in
links involving satellite networks and intercontinental long haul networks,
as well as digital networks, such as Voice over IP (VoIP). This library is
fully compliant with the ITU-T G.168 recommendation. The library can be
used for full-duplex operation. It handles 0-4 kHz audio bandwidth (8 kHz
sampling of 16-bit speech data).
Speech Recognition
Automatic Speech Recognition (ASR) for the dsPIC DSCs supports a
variety of voice-activated applications like handset and home appliance
control. A Speech Word Library Builder and a Speech Recognition Software
Library make up the ASR software suite.
Speech Encoding/Decoding Libraries
Three options exist for a variety of speech compression/encoding and decompression/decoding applications:
Noise Suppression Library
This application library suppresses
the noise interference in a speech
signal, such as ambient noise
picked up by a microphone while
capturing speech. This algorithm
is particularly useful for systems
such as hands-free phones,
speakerphones, intercoms and
headsets where an isolated noise
reference is not available. The
algorithm handles 0-4 kHz audio
bandwidth and provides 10-20 dB of
noise reduction. The library also includes
some sample rate conversion functions
to support input/output sampling rates of
9.6 kHz, 11.025 kHz and 12 kHz.
Acoustic Echo Cancellation Library
This library provides a function to eliminate the echo
generated in the acoustic path between a speaker and a
microphone, such as in a speakerphone or an intercom
system. This library is fully compliant with the G.167
standard and provides 16, 32 or 64 ms echo delays.
It handles 0-4 kHz audio bandwidth and provides echo
cancellation of 40-50 dB. It also includes some sample rate
conversion functions to support input/output sampling rates
of 9.6 kHz, 11.025 kHz and 12 kHz.
Libraries for Speech Applications
Vocoder
G.726A
SPEEX
G.711
G.711 is available for free. The library is an implementation of the ITU-T G.711 standard which uses A-law or u (mu)- law
companding to achieve 2: 1 compression.
G.726A is an implementation of the ITU-T G.726 Annex A standard which uses Adaptive Differential Pulse Code Modulation
(ADPCM) encoding algorithm. It can achieve up to an 8:1 compression ratio depending on output bit rate selected.
SPEEX is a popular standard in the LINUX workstation community which has been adapted for the dsPIC DSC. It uses Code
Excited Linear Prediction (CELP) encoding pioneered for cellular applications. It can achieve a 16:1 compression ratio.
Data Rate (16-bit)
16-bit Embedded Control Solutions
Incoming
8 kHz
8 kHz
8 kHz
16 to 40 kbps
64 kbps
Output
8 kbps
Rate
Speech Quality
4.3 -– 4.5
4.3 -– 4.5
3.7 -– 4.2
(MOS)
Near End
Speech
Far End
Speech
MIPS
FAR END
15
19
1
Speech Recognition Library features:
• Speaker independent recognition
• PC-based word library builder
• Up to 100 word vocabulary (American English)
• Supports multiple noise profiles
• Suitable for many voice control applications
Flash
(KB)
33
User Application
3
6
Line Cancellation Library features:
• 8 kHz sampling rate
• Full duplex
• Compliant with ITU-T G.168
• Royalty-free, one-time license
Acoustic Echo
Cancellation
Receive Path
recommendations
Send Path
Adaptive
Filter
-
+
RAM
(KB)
3.6
5.4
4
NEAR END
Near End
Speech
PIC24/dsPIC DSC
dsPIC DSC
dsPIC DSC
Target
Far End
Speech
ECHO

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