The document introduces the features and characteristics of the ADM331 single chip DSP motor controller. The controller adopts ADSP-2100 base architecture and features a 26 MIPS fixed-point DSP core, single cycle instruction execution, independent computational units, powerful program sequencer, etc. It is suitable for applications such as washing machines, refrigerator compressors, fans, pumps, and industrial variable speed drives.
The ADMC331 is a low-cost, single-chip controller designed for AC induction motors, permanent magnet synchronous motors, brushless DC motors, and switched reluctance motors. It integrates a 26 MIPS fixed-point DSP core with a complete set of motor control peripherals to facilitate fast and efficient development of motor controllers.
Key features include a 16-bit PWM generator, a 16-bit watchdog timer, multiple serial ports, and seven analog input channels. The device supports various boot load protocols and includes preprogrammed mathematical and motor control functions such as vector transformations.
| DSP Core Speed | 26 MIPS |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Voltage | +5 V |
| Program Memory RAM | 2K x 24-bit |
| Program Memory ROM | 2K x 24-bit |
| Data Memory RAM | 1K x 16-bit |
| PWM Resolution | 16-bit |
| Analog Input Channels | Seven |
The ADMC331 is suitable for AC induction motors, permanent magnet synchronous motors, brushless DC motors, and switched reluctance motors.
The absolute maximum rating for the supply voltage (VDD) is +7.0 V.
The device operates in an ambient temperature range of –40 °C to +85 °C.