This design demonstrates a smart speaker that utilizes wireless functions like Wi-Fi and Bluetooth® to stream music and also respond to voice commands for hands-free operation. The RZ/A1LC is an advanced MPU design featuring high levels of performance with 2MB of on-chip SRAM and a 400MHz Arm® Cortex®-A9 core to implement any functions required. Additional analog features are wrapped around the MPU, including a Class-D audio solution, the ISL97634 for controlling multiple LEDs with a wide range of PWM dimming control capabilities, and a complete power management solution.

System Benefits:

  • Arm® Cortex®-A9 core running at 400MHz with 2MB of on-chip SRAM. Supports DRAM-less solution with low cost. Low power MCU supports BLE.
  • High performance, low input voltage and high PSRR LDO. Highly efficient, synchronous buck delivering up to 2A of continuous output current. PWM boost LED driver allowing up to 7 LEDs.
  • High performance Class-D audio amplifiers with digital switching controller


Related Products

Product Description Featured Document Ordering
RZ/A1LC RZ/A1LC is the most cost-effective part in the RZ/A1 family with an Arm® Cortex®-A9 core running at 400MHz and 2MB of on-chip SRAM to support frame-buffers on-chip RZ/A1LC User's Hardware Manual Select Specific Device
RL78/G1D Bluetooth® low energy microcontrollers for smart connectivity, with the lowest level of current consumption in the industry. Compact module with built-in 32MHz crystal resonator for RF chip and antenna (already certified) is also available Datasheet Select Specific Device
LED Driver      
ISL97634 White LED Driver with PWM Dimming Datasheet Buy/Sample
Audio Amplifier      
D2-81412 D2-1 Family for Manufacturers of High-Performance Class-D Audio Amplifiers Datasheet Buy/Sample
ISL80510 High Performance 1A LDO Datasheet Buy/Sample
Buck Converter      
ISL80020A Compact Synchronous Buck Converter Datasheet Buy/Sample