Deliver data and control signals where you need them most thanks to the MAX41460 and PIC18F57Q43

ISM TX Click is based on the MAX41460, a UHF sub-GHz ISM/SRD transmitter designed to transmit On-Off Keying (OOK), Amplitude- Shift Keying (ASK), Frequency-Shift Keying (FSK), and Gaussian (G)FSK (or 2GFSK) data from Analog Devices. The crystal-based architecture of the MAX41460 provides greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. It integrates a fractional phase-locked loop (PLL), so a single, low-cost crystal of 16MHz used on this Click board™ can generate commonly used worldwide sub-GHz frequencies. A buffered clock-out signal makes the device compatible with almost any MCU or code-hopping generator. The MAX41460 features a fast oscillator Wake-Up upon data activity detection and has an Auto-Shutdown feature to extend battery life. This Click board™ has four major operating states: Shutdown, Stand-By, Programming, and Transmitter-Enabled Mode.

These states describe the Power-ON/Power-OFF status of the transmitter's three primary internal circuit blocks: the crystal oscillator (XO), the PLL synthesizer, and a high-efficiency, open-drain switching-mode power amplifier (PA). To ensure the MAX41460 enters the shutdown state after Power-On, the DATA pin must be held low at Power-On. The PA pin is used to adjust the frequency with only frequency-dependent components required for the external antenna-matching network that are connected so that the frequency of this Click board™ is fixed to 433.92MHz. The MAX41460 communicates with MCU using the standard SPI serial interface with a maximum frequency of 20 MHz. The device can support two types of SPI transactions: register access only and register access, followed by data transmission. In both Shutdown and Stand-By states, programming through the SPI interface is not allowed. Configuration register values are retained in all

states unless changed by programming or if the device is powered off. This Click board™, alongside the power LED indicator, has an additional green LED indicator labeled as DATA used to visually indicate the successful transmission of data across the SPI interface. ISM TX Click possesses the SMA antenna connector, and it can be used for connecting the appropriate antenna that MIKROE has in its offer, such as Rubber Antenna GSM/GPRS Right Angle. This antenna is an excellent choice for all GSM/GPRS applications and supports a range of frequencies and bands. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

PIC18F57Q43 Curiosity Nano evaluation kit is a cutting-edge hardware platform designed to evaluate microcontrollers within the PIC18-Q43 family. Central to its design is the inclusion of the powerful PIC18F57Q43 microcontroller (MCU), offering advanced functionalities and robust performance. Key features of this evaluation kit include a yellow user LED and a responsive

mechanical user switch, providing seamless interaction and testing. The provision for a 32.768kHz crystal footprint ensures precision timing capabilities. With an onboard debugger boasting a green power and status LED, programming and debugging become intuitive and efficient. Further enhancing its utility is the Virtual serial port (CDC) and a debug GPIO channel (DGI

GPIO), offering extensive connectivity options. Powered via USB, this kit boasts an adjustable target voltage feature facilitated by the MIC5353 LDO regulator, ensuring stable operation with an output voltage ranging from 1.8V to 5.1V, with a maximum output current of 500mA, subject to ambient temperature and voltage constraints.