SM320F2812-HT

www.ti.com

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SGUS062A –JUNE 2009 –REVISED APRIL 2010

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADC 16-Channel Analog Inputs

 

ADCINA[7:0]

 

 

 

 

Analog Input 0−3 V With Respect to ADCLO

 

 

 

 

 

 

 

 

ADCINB[7:0]

 

 

 

 

 

 

 

 

 

 

 

Connect to Analog Ground

 

Test Pin

 

ADCLO

 

 

 

 

 

 

 

 

 

 

ADCBGREFIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24.9 kW/20 kW (See Note C)

 

ADC External Current Bias Resistor

 

ADCRESEXT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 V

(See

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADC Reference Positive Input

 

ADCREFP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADC Reference Medium Input

 

ADCREFM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 V

Note D)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 mF − 10 mF

 

 

 

 

 

 

 

 

 

 

 

1 mF −10 mF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDDA1

 

 

 

 

 

 

 

Analog 3.3 V

 

 

 

 

 

 

 

 

 

 

 

ADC Analog Power

 

VDDA2

 

 

 

 

 

 

 

Analog 3.3 V

 

 

 

 

 

 

 

 

 

 

 

 

VSSA1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSSA2

 

 

 

 

 

 

 

Analog 3.3 V

 

 

 

 

 

 

 

 

 

 

 

ADC Reference Power

 

AVDDREFBG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AVSSREFBG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Analog 3.3 V

 

ADC Analog I/O Power

 

VDDAIO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSSAIO

 

 

 

 

 

 

 

Analog Ground

 

 

 

 

 

 

 

 

 

 

 

ADC Digital Power

 

VDD1

 

 

 

 

 

 

 

 

1.8 V Can use the same 1.8-V (or 1.9-V)

 

 

 

 

 

 

 

 

 

 

 

 

 

VSS1

 

 

 

 

Digital Ground

supply as the digital core but separate the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

two with a ferrite bead or a filter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES: A. External decoupling capacitors are recommended on all power pins.

B.Analog inputs must be driven from an operational amplifier that does not degrade the ADC performance.

C.Use 24.9 kΩ for ADC clock range 1 − 18.75 MHz; use 20 k Ω for ADC clock range 18.75 − 25 MHz.

D.It is recommended that buffered external references be provided with a voltage difference of (ADCREFP−ADCREFM) = 1 V $ 0.1% or better.

External reference is enabled using bit 8 in the ADCTRL3 Register at ADC power up. In this mode, the accuracy of external reference is critical for overall gain. The voltage ADCREFP−ADCREFM determines the overall accuracy . Do not enable internal references when external references are connected to ADCREFP and ADCREFM. See the TMS320x281x DSP Analog-to-Digital Converter (ADC) Reference Guide (literature number SPRU060) for more information.

Figure 4-6. ADC Pin Connections With External Reference

Copyright © 2009–2010, Texas Instruments Incorporated

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Texas Instruments SM320F2812-HT specifications Adclo Adcbgrefin, Avddrefbg Avssrefbg
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SM320F2812-HT specifications

The Texas Instruments SM320F2812-HT is a highly capable digital signal processor (DSP) specifically designed for high-performance and real-time applications in harsh environments. This part of the C2000 family of microcontrollers caters to applications in areas such as industrial automation, motor control, and power conversion, where reliability and durability under extreme temperature conditions are paramount.

One of the standout features of the SM320F2812-HT is its robust architecture based on a 32-bit fixed-point core. This allows for efficient execution of complex algorithms while maintaining a high processing speed. The processor operates at clock speeds of up to 150 MHz, enabling it to handle multiple tasks simultaneously with minimal latency.

The SM320F2812-HT boasts an impressive memory configuration that includes up to 128 KB of flash memory and 4 KB of RAM. The integrated memory supports efficient data handling and storage, making it ideal for demanding applications that require quick access to critical information. The device also features various peripherals, including analog-to-digital converters (ADCs), pulse width modulation (PWM) modules, and serial communication interfaces, which enhance its functionality in real-time processing and control tasks.

Furthermore, this DSP employs advanced control algorithms and supports various communication protocols, allowing it to interoperate seamlessly with other devices within a system. Its capabilities are further enhanced by Texas Instruments’ extensive development tools and software libraries, which enable developers to accelerate design cycles and improve overall efficiency.

With its high temperature rating, the SM320F2812-HT is designed to operate within a temperature range from -40°C to 125°C, making it particularly well-suited for use in automotive, aerospace, and other rugged environments where traditional components might fail. The high reliability and endurance of this microcontroller make it a preferred choice among engineers looking for durable solutions without compromising performance.

In summary, the Texas Instruments SM320F2812-HT represents a powerful blend of processing capabilities, memory architecture, and environmental resilience. Its features make it a go-to option for developers in search of a robust DSP for real-time applications, ensuring that it meets the rigorous demands of various industrial sectors while delivering consistent performance.
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