MUX 5 Click Board™

Product Code: MIKROE-5423

How Does The MUX 5 Click Board™ Work? The MUX 5 Click Board™ is based on the MAX14661, a serially controlled, dual-channel analog multiplexer from Analog Devices. It allows any of the 16 pins to be connected to any of the common pins, routed to the AN or INT pins of the mikroBUS™ socket, simultaneously in any combination. The MAX14661 features Beyond-the-Rails™ capability, which mainly simplifies an analog design by eliminating the need for multiple power rails and allows ±5.5V signals to be passed with any supply configuration. It integrates bias circuitry to switch high-voltage (±25V) signals while operating from a low-voltage supply with low on-resistance and fast bandwidth speeds. This Click board™ is ideal for audio and data multiplexing, interface termination, switching, industrial measurement, and instrumentation systems. The MAX14661 allows using both I2C and SPI interfaces. Both modes provide individual control of each independent switch so that any combination of switches can be applied.

The selection can be made by positioning SMD jumpers labelled as COMM SEL in an appropriate position. Note that all the jumpers' positions must be on the same side, or the Click board™ may become unresponsive. While the I2C interface is selected, the MAX14661 allows choosing the least significant bit (LSB) of its I2C slave address using the SMD jumper labelled ADDR SEL. The MUX 5 Click Board™ also possesses an additional active-low shutdown pin, routed to the RST pin on the mikroBUS™ socket. When this pin is set to a low logic state, all registers are cleared, all switches are open, and the serial interface is not functional. All switch connections are open and tolerant of the full ±5.5V specified signal range. It is good to address that the MAX14661 consumes minimal power in this mode. The MUX 5 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 DAC Applications Can be used for various multiplexing applications like system diagnostics, data acquisition, signal switching, and many more On-board modules MAX14661 - analog multiplexer from Analog Devices Key Features Serially controlled, dual-channel, Beyond-the-Rails capability, selectable interface, low power consumption, high performance, flexible multiplexing, programmable shadow registers allow simultaneous updating, and more Interface I2C,SPI Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the MUX 5 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes B Channel Common Signal AN 1 AN PWM 16 NC Shutdown RST 2 RST INT 15 INT A Channel Common Signal 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 SCL I2C Clock SPI Data IN SDI 6 MOSI SDA 11 SDA I2C Data 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