Overview
The ADSP-2189MKST-300 is a digital signal processor (DSP) microcomputer produced by Analog Devices Inc. This device is optimized for high-speed numeric processing and digital signal processing applications. It integrates the ADSP-2100 family base architecture, which includes three computational units (ALU, multiplier/accumulator, and shifter), two data address generators, and a powerful program sequencer. The processor features extensive on-chip memory, low power consumption, and various interface options, making it suitable for a wide range of applications, including battery-operated portable equipment.
Key Specifications
| Specification | Detail |
|---|---|
| Instruction Rate | 75 MIPS (37.57 MHz external clock) |
| Supply Voltage | 2.5V with 3.3V I/O tolerance |
| On-Chip Memory | 32K words (24-bit) of program RAM, 48K words (16-bit) of data RAM |
| Computational Units | ALU, Multiplier/Accumulator (MAC), and Shifter |
| DMA Ports | 16-bit internal DMA port, 8-bit DMA port to byte memory |
| Serial Ports | Two serial ports (SPORT 0 and SPORT 1) |
| Timer | Programmable 16-bit interval timer with prescaler |
| Interrupt Capabilities | Extensive interrupt capabilities with interrupt vector table and sensitivity control |
| Package | 100-lead LQFP (14mm x 14mm) |
| Power Consumption | 0.4 mA/MIPS |
Key Features
- High Performance: The ADSP-2189M operates at 75 MIPS with a 37.57 MHz external clock, making it suitable for high-speed numeric and DSP applications.
- Low Power: The device features low power consumption with a 2.5V supply voltage and 0.4 mA/MIPS, ideal for battery-operated devices.
- Extensive On-Chip Memory: Includes 32K words of program RAM and 48K words of data RAM, reducing the need for external memory.
- Flexible I/O Structure: Supports 2.5V or 3.3V operation with all inputs tolerating up to 3.6V, and features a byte memory interface for data tables and program overlays.
- Advanced Computational Units: Includes an ALU, MAC, and shifter, supporting arithmetic, logic, and multiprecision computations.
- Programmable Timer and DMA Ports: Features a programmable 16-bit interval timer and multiple DMA ports for high-speed data transfer.
- Extensive Interrupt Capabilities: Supports various interrupt modes and sensitivity control, enhancing system responsiveness.
Applications
- Digital Signal Processing: Ideal for applications requiring high-speed DSP, such as audio processing, image processing, and telecommunications.
- Portable Equipment: Suitable for battery-operated devices due to its low power consumption features.
- Embedded Systems: Can be used in various embedded systems requiring high performance and low power, such as industrial control systems and medical devices.
- Audio Systems: Supports audio interfaces and can be integrated with audio codecs like the AD73322, making it suitable for audio processing applications.
Q & A
- What is the instruction rate of the ADSP-2189M?
The ADSP-2189M operates at 75 MIPS with a 37.57 MHz external clock.
- What is the supply voltage of the ADSP-2189M?
The device operates at 2.5V with 3.3V I/O tolerance.
- How much on-chip memory does the ADSP-2189M have?
The ADSP-2189M has 32K words (24-bit) of program RAM and 48K words (16-bit) of data RAM.
- What computational units are included in the ADSP-2189M?
The device includes an ALU, Multiplier/Accumulator (MAC), and Shifter.
- Does the ADSP-2189M support DMA operations?
Yes, it features a 16-bit internal DMA port and an 8-bit DMA port to byte memory.
- What type of timer is available on the ADSP-2189M?
The device includes a programmable 16-bit interval timer with prescaler.
- How many serial ports does the ADSP-2189M have?
The ADSP-2189M has two serial ports (SPORT 0 and SPORT 1).
- What is the package type of the ADSP-2189M?
The device is available in a 100-lead LQFP package.
- What are the power consumption characteristics of the ADSP-2189M?
The device consumes 0.4 mA/MIPS.
- Can the ADSP-2189M be used in battery-operated devices?
Yes, due to its low power consumption features, it is suitable for battery-operated portable equipment.
