Texas Instruments MSC1211 manual 4 J4 Analog Inputs, 5 J7 External Reference Input

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I/O Connectors and Signals

3.3.4J4: Analog Inputs

Terminal block J4 is the main analog input to the MSC1211EVM, as is defined in Table 3–8. One terminal is provided for each of the nine MSC1211 differen- tial inputs. Each terminal is connected to the MSC1211 through a 1kΩ resistor.

Table 3–8. J4: Analog Inputs

Terminal

Terminal

MSC1211

 

Number

Name

Pin Number

Function

 

 

 

 

1

AN0

18

Analog Input 0

 

 

 

 

2

AN1

19

Analog Input 1

 

 

 

 

3

AN2

20

Analog Input 2

 

 

 

 

4

AN3

21

Analog Input 3

 

 

 

 

5

AN4

22

Analog Input 4

 

 

 

 

6

AN5

23

Analog Input 5

 

 

 

 

7

AN6/EXTD

24

Analog Input 6 and

 

 

 

Digital Low Voltage Detect

 

 

 

 

8

AN7/EXTA

25

Analog Input 7 and

 

 

 

Analog Low Voltage Detect

 

 

 

 

9

AINCOM

26

Analog Common

 

 

 

 

10

AGND

17, 27

Analog Ground

 

 

 

 

3.3.5J7: External Reference Input

The MSC1211EVM has an onboard 2.5V/1.25V bandgap reference. If a lower- noise reference source or a reference with a different voltage is desired, it can be connected to square pin connector J7. The reference source (onboard or external) is selected using pins 1 and 2 of J7. Bypassing for the reference in- puts is provided by C17 and C18. To use the internal REFOUT signal, connect pins 1 and 2 together.

Table 3–9. J7: External Reference Input

Terminal

 

Number

Function

 

 

1

AGND— Analog Ground

 

 

2

REF IN–

 

 

3

VDAC1/(REF+ for MSC1211)

 

 

4

REF IN+/REFOUT

 

 

5

Open

 

 

6

AVDD

Operation3-9

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions About This Manual Read This FirstTrademarks Contents Tables FiguresTopic IntroductionEVM System Overview MSC1211 DescriptionAnalog Inputs Power RequirementsPrototyping Area Host Computer RequirementsGetting Started Unpacking the MSC1211EVM Default Configration Quick StartFactory Jumper Settings Default ConfigurationJumper identifier Description Default Setting Unpacking the MSC1211EVMQuick Start CD-Rom ContentsRide Raisonance Integrated Development Environment Operand Definition Downloader Operand DefinitionsOperation Jumpers Switches Connectors and Signals Circuit DescriptionsJumper/Function Reference Jumpers4 JMP3 I2C Data SCL Enable 3 JMP3 I2C Data SDA Enable5 JMP5 Avdd Power Source Select 6 JMP6 Dvdd Power Source SelectReset Switch SwitchesINT Switch 3 SW3 Configuration SwitchSW5 Configuration Control Switch 5 SW5 Emulation and Control Switch1 J8 Serial0 RS-232 Connector I/O Connectors and SignalsPin Signal RS-232 Direction Number Name At board Function J8 RS-232 Port Pinout2 J9 Serial1 RS-232 Connector Unregulated Power Input Connector 3 J6, JMP5, JMP6, B1 Power ConnectorsB1 9V Battery Connector Positive power supply inputJ4 Analog Inputs 4 J4 Analog Inputs5 J7 External Reference Input J7 External Reference Input10.TP1-6 Test Points 6 TP1-6 Test PointsCircuit Descriptions Power Supply1 MSC1211 Programming and Host CommunicationPhysical Description Processor Schematic SchematicsPower and Analog Inputs Schematic Printed Circuit Board Layout Component LocationsPower-Supply CE Certification Bill of Materials Bill of MaterialsPhysical Description JMP1-JMP4

MSC1211 specifications

Texas Instruments MSC1211 is a highly integrated, low-power microcontroller designed specifically for applications requiring high accuracy and precision in signal processing. As a member of the Texas Instruments Microcontroller family, the MSC1211 targets industrial automation, medical instrumentation, and portable measurement devices, making it a versatile choice for designers across various industries.

One of the standout features of the MSC1211 is its 16-bit ADC (Analog-to-Digital Converter) that boasts a resolution of 16 bits, which enables the microcontroller to accurately convert analog signals into digital data. This high resolution makes it suitable for applications where precision is paramount, such as in medical devices that require accurate readings from sensors. The device can achieve sampling rates up to 1 kSPS (kilo Samples Per Second), making it efficient for real-time signal processing.

Another key characteristic of the MSC1211 is its low power consumption. The microcontroller employs advanced power management features, allowing it to operate in various power modes, making it ideal for battery-operated devices. The sleep mode dramatically reduces power consumption, extending the operational life of portable equipment significantly.

The MSC1211 features a built-in digital signal processor (DSP) that facilitates efficient data processing and filtering, enabling complex algorithms to be executed on the captured signals in real-time. This capability simplifies design considerations for developers, reducing the need for external DSP chips and enhancing system integration.

Connectivity is another significant aspect of the MSC1211. It supports standard communication protocols such as SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit), making it easy to interface with a variety of sensors and peripherals. This flexibility is crucial in today's interconnected world, allowing developers to design scalable systems that can accommodate future upgrades and enhancements.

Moreover, the microcontroller incorporates onboard memory, including RAM and Flash memory, ensuring ample storage for application codes and operational data. The flexibility in memory allocation allows developers to optimize their applications, balancing memory usage with processing speed.

In summary, the Texas Instruments MSC1211 microcontroller stands out for its high-resolution ADC, low power consumption, integrated DSP capabilities, and flexible communication options. These features make it an exceptional choice for applications in diverse fields such as medical devices, industrial automation, and portable measurement systems, ensuring precision and efficiency in performance.
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