GENERAL DESCRIPTION
●The ADMCF326 is a low cost, single-chip DSP-based controller, suitable for permanent magnet synchronous motors, ac induction motors, and brushless dc motors. The ADMCF326 integrates a 20 MIPS, fixed-point DSP core with a complete set of motor control and system peripherals that permits fast, efficient devel opment of motor controllers.
●FEATURES
●20 MIPS Fixed-Point DSP Core
● Single Cycle Instruction Execution (50 ns)
● ADSP-21xx Family Code Compatible
● Independent Computational Units
● ALU
● Multiplier/Accumulator
● Barrel Shifter
● Multifunction Instructions
● Single Cycle Context Switch
● Powerful Program Sequencer
● Zero Overhead Looping
● Conditional Instruction Execution
● Two Independent Data Address Generators
●Memory Configuration
● 512 24-Bit Program Memory RAM
● 512 16-Bit Data Memory RAM
● 4K 24-Bit Program Memory ROM
● 4K 24-Bit Program Flash Memory
● Three Independent Programmable Sectors
● Security Lock Bit
● 10K Erase/Program Cycles
●Three-Phase 16-Bit PWM Generator
● 16-Bit Center-Based PWM Generator
● Programmable Dead Time and Narrow Pulse Deletion
● Edge Resolution to 50 ns
● 150 Hz Minimum Switching Frequency
● Double/Single Duty Cycle Update Mode Control
● Programmable PWM Pulsewidth
● Special Crossover Function for Brushless DC Motors
● Individual Enable and Disable for Each PWM Output
● High Frequency Chopping Mode for Transformer
● Coupled Gate Drives
● External PWMTRIP Pin
●Integrated ADC Subsystem
● Six Analog Inputs
● Acquisition Synchronized to PWM Switching Frequency
● Internal Voltage Reference
●9-Pin Digital I/O Port
● Bit Configurable as Input or Output
● Change of State Interrupt Support
●Two 8-Bit Auxiliary PWM Timers
● Synthesized Analog Output
● Programmable Frequency
● 0% to 100% Duty Cycle
● Two Programmable Operational Modes
● Independent Mode/Offset Mode
●16-Bit Watchdog Timer
●Programmable 16-Bit Internal Timer with Prescaler
●Double Buffered Synchronous Serial Port
●Hardware Support for UART Emulation
●Integrated Power-On Reset Function Options
●28-Lead SOIC and PDIP Packages Available
●TARGET APPLICATIONS
●Washing Machines, Refrigerator Compressors, Fans, Pumps, Industrial Variable Speed Drives
●MOTOR TYPES
●AC Induction Motors
●Permanent Magnet Synchronous Motors (PMSM)
●Brushless DC Motors (BDCM)
