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Home > Embedded ICs > Embedded - Digital Signal Processors & Controllers (DSP, DSC) > ADMC401BSTZ
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ADMC401BSTZ

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ADMC401BSTZ Overview

The ADMC401 is a single-chip DSP-based controller, suitable for high performance control of ac induction motors (ACIM), permanent magnet synchronous motors (PMSM), brushless dc motors (BDCM) and switched reluctance (SR) motors in industrial applications. The ADMC401 integrates a 26 MIPS, fixed-point DSP core with a complete set of motor control peripherals that permits fast motor control in a highly integrated environment. 

The DSP core of the ADMC401 is the ADSP-2171 which is completely code compatible with the ADSP-21xx DSP family (as well as other members of the integrated motor controllers of the ADMC3xx family) and combines three computational units, data address generators and a program sequencer. The computational units comprise an ALU, a multiplier/accumulator (MAC) and a barrel shifter. The DSP core also adds instructions for bit manipulation, squaring (x2), biased rounding and global interrupt masking. In addition, two flexible double-buffered, bidirectional synchronous serial ports are included in the ADMC401. 

The ADMC401 provides 2K × 24-bit internal program memory RAM, 2K × 24-bit internal program memory ROM and 1K × 16-bit internal data memory RAM. The program and data memory RAM can be boot loaded through the serial port from either a serial E2PROM, through a UART connection (either from external host microprocessor or from the Motion Control Debugger) or via a synchronous serial interface from a host microprocessor. Alternatively, the internal program and data memory RAM may be booted from an external device across the address and data buses. The program memory ROM includes a monitor that adds software debugging features through the serial port.

Additionally, the ADMC401 device adds significant external memory and peripheral expansion capabilities by making available the full address and data bus of the DSP core. This feature permits expansion of both external program and data memory and means that the DSP core can address up to 14K × 24 bits of external program memory and up to 13K × 16 bits of external data memory. 

The ADMC401 contains a number of special purpose, motor control peripherals. The first is a high performance, 8-channel, 12-bit ADC system with dual channel simultaneous sampling ability across 4 pair of inputs. An internal precision voltage reference is also available as part of the ADC system. In addition, a three-phase, 16-bit, center-based PWM generation unit can be used to produce high-accuracy PWM signals with minimal processor overhead. The ADMC401 also contains a flexible incremental encoder interface unit for position sensor feedback; two adjustable-frequency auxiliary PWM outputs, 12 lines of digital I/O; a 2-channel event capture system; a 16-bit watchdog timer; two 16-bit interval timers (one of which can be linked to the encoder interface unit) and an interrupt controller that manages all peripheral interrupts. Finally, the ADMC401 contains an integrated power-on-reset (POR) circuit that can be used to generate the required reset signal for the device on power-on.

Features

  • 26 MIPS Fixed-Point DSP Core
  • Memory Configuration
  • High Resolution Multichannel ADC
  • Voltage Reference
  • Three-Phase 16-Bit PWM Generation Unit
  • Incremental Encoder Interface Unit
  • See data sheet for additional features

Applications

-

Specifications

  • Clock Rate 26MHz

  • Operating Temperature -40℃ ~ 85℃ (TA)

  • Type Fixed Point

  • Non-Volatile Memory ROM (6 kB)

  • Package / Case 144-LQFP

  • Voltage - Core 5.00V

  • Voltage - I/O 5.00V

  • Mounting Type Surface Mount

  • Interface Serial Port

  • Supplier Device Package 144-LQFP (20x20)

  • On-Chip RAM 8kB

Circuit Diagram

ADMC401BSTZ
ADMC401BSTZ
ADMC401BSTZ

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