DM300027 Microchip Technology, DM300027 Datasheet - Page 53

• Manufacturer Part Number: DM300027
• Description: BOARD DEV STARTER PIC24 28-PIN
• Manufacturer: Microchip Technology
• Type: MCUr

Specifications of DM300027

• Contents: Board, Cables, CD, Sample Part
• Processor To Be Evaluated: dsPIC30F/PIC24F/dsPIC33F
• Data Bus Width: 16 bit
• Interface Type: USB
• Silicon Manufacturer: Microchip
• Core Architecture: PIC, DsPIC
• Core Sub-architecture: PIC24, DsPIC30, DsPIC33
• Silicon Core Number: PIC24F, DsPIC30F, DsPIC33F
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: dsPIC30F/33F and PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Summary
Microchip’s Quarter Brick DC/DC Converter Reference
Design provides an easy method to evaluate the power, and
features of SMPS dsPIC® Digital Signal Controllers in high
density quarter brick DC-DC converters for Intermediate Bus
Architectures (IBA). This reference design is implemented
using a single dsPIC33F “GS” digital-power DSC that
provides the full digital control of the power conversion and
system management functions. As shown in this reference
design, the dsPIC33F ‘GS’ device enable designers to
easily and cost effectively create products using advanced
switching techniques such as Phase Shift Full Bridge (PSFB)
topology that lower switching losses and enable efficiencies
as high as 94%. The Quarter Brick DC/DC Converter
Reference Design is royalty-free when used in accordance
with the licensing agreement.
Key Features
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Summary
This application note describes the procedure to port the
open source Helix MP3 decoder algorithm onto Microchip’s
PIC32MX 32-bit microcontrollers (MCUs). The source code
provided with this document demonstrates a MP3 player
application using the Helix MP3 decoder. The MP3 player
application uses Microchip’s USB stack to read MP3 files
from a USB flash drive (thumb drive), and the Microchip
graphics stack to implement a Graphical User Interface (GUI)
with touch screen support.
The Helix MP3 decoder is available as both floating
point and fixed point implementations. The fixed point
implementation is considered for porting the algorithm onto
the PIC32MX microcontroller. The algorithm runs on any
32-bit fixed point processor and is coded entirely in the C
language with options to replace certain code sections with
optimized assembly instructions.
Quarter Brick DC/DC Converter Reference Design
Ready-to-Use Solution
Porting the Helix MP3 Decoder onto Microchip’s
PIC32MX 32-bit MCUs
Application Note: AN1367 • Ready-to-Use Solution
Primary and secondary MOSFET control
Active current share
Remote ON/OFF
Proven Software Source Code
Proven Software Source Code
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Multimedia Expansion Board
(DM320005)
The Helix MP3 decoder provides Layer 3 support for MPEG-1,
MPEG-2 and MPEG-2.5. It supports variable bit rates,
constant bit rates and stereo and mono audio formats.
Quarter Brick DC/DC Converter
Reference Design
Programmable soft start
Controlled fall time
Voltage, current, temperature monitoring and protection
Configurable output voltage
Full digital control
Supports dsPIC33F devices
www.microchip.com/16bit • www.microchip.com/32bit
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