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Mikroelektronika d.o.o.

Horloge Gen 6 Click Board

Horloge Gen 6 Click Board

SKU: MIKROE-4973

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€11,95 EUR hors taxes
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€11,95 EUR hors taxes
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Key Features

Faible consommation d'énergie, haute précision, fonctionnement d'oscillateur astable, sortie programmable, fonction d'activation/réinitialisation, etc.
Basé sur l'oscillateur RC MIC1557 de Microchip Technology
Peut être utilisé pour des applications telles que la génération d'impulsions, la minuterie de précision, la génération de temporisation, etc.
mikroBUS : interfaces SPI et GPIO

Overview

La carte Click Board™ Clock Gen 6 est une carte complémentaire compacte représentant une solution d'oscillateur numérique. Cette carte comprend le MIC1557, un oscillateur CMOS RC IttyBitty conçu pour fournir des impulsions rail-to-rail pour une temporisation précise ou une génération de fréquence de Microchip Technology. Le MIC1557 possède une connexion de seuil et de déclenchement unique, connectée en interne, pour un fonctionnement astable (oscillateur) uniquement. Il dispose également d'un signal de commande d'activation/réinitialisation acheminé vers la broche RST de la prise mikroBUS™, qui contrôle l'alimentation de polarisation vers les circuits internes de l'oscillateur et optimise la consommation d'énergie utilisée pour la mise sous/hors tension de l'oscillateur. De plus, il offre la possibilité de sélectionner la fréquence souhaitée programmée via un potentiomètre numérique, le MAX5401. Cette carte Click™ convient à la génération d'impulsions, à la minuterie de précision, à la génération de temporisation et à des applications similaires.

La carte Click™ Clock Gen 6 est prise en charge par une bibliothèque compatible mikroSDK, qui comprend des fonctions qui simplifient le développement logiciel. Cette carte Click™ est livrée sous la forme d'un produit entièrement testé, prêt à être utilisé sur un système équipé du socket mikroBUS™.

How Does The Clock Gen 6 Click Board™ Work?

The Clock Gen 6 Click Board™ as its foundation uses the MIC1557, a low-power digital frequency solution providing the logic for creating a simple RC oscillator circuit from Microchip Technology. The MIC1557 offers rail-to-rail pulses for precise frequency generation alongside a single threshold and trigger connection, internally connected, for astable (oscillator) operation only with programmable output frequency and enable/reset control signal intended as an oscillator with a Shutdown capability.

Clock Gen 6 Click inner

As mentioned before, the astable oscillator switches between two states, ON and OFF, producing a continuous square wave. The MIC1557 is optimized for this function by tying the two comparator inputs together, the threshold and trigger pins (THR and TRG), forming a T/T pin. The external capacitor charges slowly through the external resistor presented in the form of a digital potentiometer by which the user can pass through the frequency range and thus adjust the desired output.

By replacing the resistor with a digital potentiometer, the user can easily program frequency output as performed on this Click board™. For this purpose, the digital potentiometer MAX5401, which communicates with the MCU via 3-Wire SPI serial interface, is used to set the resistance on the MIC1557 OUT line, adjusting the frequency up to 5MHz.

Alongside SPI communication, this Click board™ also uses one additional pin. The Enable pin, labelled as EN and routed to the RST pin of the mikroBUS™ socket, optimizes power consumption and is used for power ON/OFF purposes (controls the bias supply to the oscillator's internal circuitry). When the MIC1557 is deselected, the supply current is less than 1μA, and the device is placed in a Shutdown state. Forcing the EN pin low resets the device by setting the flip flop, causing the output to a low logic state.

ThClock Gen 6 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.

SPECIFICATIONS

 

Type Clock generator
Applications Can be used for applications such as pulse generation, precision timer, time-delay generation, and more
On-board modules MIC1557 - RC oscillator from Microchip Technology
Key Features Low power consumption, high precision, astable oscillator operation, programmable output, enable/reset feature, and more
Interface GPIO,SPI
Compatibility mikroBUS
Click board size S (28.6 x 25.4 mm)
Input Voltage 3.3V or 5V

 

PINOUT DIAGRAM

This table shows how the pinout on Clock Gen 6 Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
  NC 1 AN PWM 16 NC  
Enable EN 2 RST INT 15 NC  
SPI Chip Select CS 3 CS RX 14 NC  
SPI Clock SCK 4 SCK TX 13 NC  
SPI Data OUT SDO 5 MISO SCL 12 NC  
SPI Data IN SDI 6 MOSI SDA 11 NC  
Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply
Ground GND 8 GND GND 9 GND Ground

ONBOARD SETTINGS AND INDICATORS

Label Name Default Description
LD1 PWR - Power LED Indicator
JP1 VCC SEL Left Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V

CLOCK GEN 6 CLICK ELECTRICAL SPECIFICATIONS

Description Min Typ Max Unit
Supply Voltage 3.3 - 5 V
Frequency Range - - 5 MHz
Operating Temperature Range -40 +25 +85 °C

 

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