DSPIC33FJ128GP708-I/PT Microchip Technology, DSPIC33FJ128GP708-I/PT Datasheet - Page 55

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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
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC33FJ128GP708-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
DSPIC33FJ128GP708-I/PT
Manufacturer:
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Quantity:
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11.9
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
• Any microphone-based application that needs to
• Any application that needs to eliminate noise
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
• Full compliance with the Microchip C30
• Precompiled library archive files
• Highly optimized assembly code, utilizing DSP
• Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
• 10-20 dB noise reduction depending on type of
• “dsPIC30F Noise Suppression Library User’s Guide”
• Demo application source code is provided
• Accessory Kit available for purchase includes:
TABLE 11-5:
© 2005 Microchip Technology Inc.
Noise Suppression
Sample Rate Conversion
Encoding system
eliminate undesired noise
interference from signals received over a
communication channel
assembly application program
C Compiler, Assembler and Linker
instructions and advanced addressing modes
noise
audio cable, headset, oscillators, microphone,
speaker, DB9 M/F RS-232 cable, DB9M-DB9M
null modem adapter and can be used for library
evaluation
Note:
Algorithm
Noise Suppression Library
The user application might require an
additional 1 KB-1.5 KB for data buffering
(application-dependent).
RESOURCE REQUIREMENTS
MIPS
1.0
3.3
2.6 KB 0.5 KB
Flash
7 KB
RAM
1 KB
Preliminary
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
• Full compliance with the Microchip C30
• Precompiled library archive files
• Highly optimized assembly code, utilizing DSP
• Echo cancellation for 16, 32 or 64 ms echo delay
• Fully tested for compliance with G.167
• Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate
• Convergence Rate: up to 43 dB/sec.,
• Echo Cancellation: Up to 50 dB, typically > 40 dB
• “dsPIC30F Acoustic Echo Cancellation Library
• Demo application source code is provided
• Accessory Kit available for purchase
TABLE 11-6:
AEC – 64 ms Echo Tail
AEC – 32 ms Echo Tail
AEC – 16 ms Echo Tail
Sample Rate Conversion
assembly application program
C Compiler, Assembler and Linker
instructions and advanced addressing modes
or ‘tail length’ (configurable)
specifications for in-car applications
typically > 30 dB/sec.
User’s Guide”
Note:
Algorithm
The user application might require an
additional 2 KB-2.5 KB for data buffering
(application-dependent).
RESOURCE REQUIREMENTS
MIPS
dsPIC33F
16.5
10.5
7.5
1.0
DS70155C-page 53
2.6 KB 0.5 KB
Flash
6 KB
6 KB
6 KB
5.7 KB
3.4 KB
2.6 KB
RAM

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