Digital Walkie Talkie
The NXP Airfast® RF power portfolio brings extreme ruggedness and high gain to mobile radio applications. The high gain of our devices helps eliminate amplification stages and reduce system cost. Plus, the high efficiency of the portfolio allows customers to use smaller heatsinks and housing while improving reliability. The broadband capability of the mobile radio devices enables full performance across each band.
Product Details
Supported Devices
Processors and Microcontrollers
K2x / KS2x USB
- K24_120: Kinetis® K24-120 MHz, Full-Speed USB, 256KB SRAM Microcontrollers (MCUs) based on Arm® Cortex®-M4 Core
Sensors
Accelerometers
- FXLS8974CF: ±2g/±4g/±8g/±16g, Low-Power 12-Bit Digital IoT Accelerometer
Audio
Car Audio Amplifiers
- TDF8530TH: I2C-Bus Controlled Quad Channel 45 W / 2 Ω Class-D Power Amplifier with Full Diagnostics
Features
Arm® Cortex®-M4 core
- Flexible low-power modes with power and clock gating for optimal peripheral activity and recovery times. Stop currents of <340 nA, run currents of 250 µA/MHz, 4.5 µs wake-up from Stop mode
- Full memory and analog operation down to 1.71 volts for extended battery life
- Low-leakage wake-up unit with up to seven internal modules and 16 pins as wake-up sources in low-leakage stop (LLS)/very low-leakage stop (VLLS) modes
- Low-power timer for continuous system operation in reduced power state
Mixed-Signal Capability
- Two high-speed, 16-bit analog-to-digital converters (ADCs) with configurable resolution. Single or differential output mode operation for improved noise rejection. 500 ns conversion time achievable with programmable delay block triggering
- Two 12-bit digital-to-analog converters (DACs) for analog waveform generation for audio applications
- Three high-speed comparators providing fast and accurate motor over-current protection by driving PWMs to a safe state
- Analog voltage reference provides an accurate reference to analog blocks, ADC and DAC, and replaces external voltage references to reduce system cost
Performance
- Arm Cortex-M4 core + DSP. 120 MHz, single-cycle MAC, single instruction multiple data (SIMD) extensions, single precision floating point unit
- Up to 16-channel DMA for peripheral and memory servicing with reduced CPU loading and faster system throughput
- Crossbar switch enables concurrent multi-leader bus accesses, increasing bus bandwidth
- Independent flash banks allow concurrent code execution and firmware updating with no performance degradation or complex coding routines
Connectivity and Communications
- USB 2.0 On-The-Go (full-speed) with USB transceiver. Intelligent design with embedded 48 MHz oscillator allowing for USB crystal-less system design. Device charge detect optimizes charging current/time for portable USB devices enabling longer battery life. Low-voltage regulator supplies up to 120 mA off-chip at 3.3 volts to power external components from 5 volts input
- Up to six UARTs with IrDA support including one UART with ISO7816 smart card support. Variety of data size, format and transmission/reception settings supported for multiple industrial communication protocols
- Inter-IC Sound (I²S) serial interface for audio system interfacing
- CAN module for industrial network bridging
- Three DSPI and three I²C