Alif Semiconductor Announces BLE and Matter Wireless Microcontroller With Neural Co-Processor for AI/ML Workloads
April 10, 2024
News
PLEASANTON, California – Alif Semiconductor announced the launch of the Balletto family, a Bluetooth® Low Energy (BLE) wireless microcontroller to feature hardware optimization for AI/ML workloads.
Supplied in an ultra-small WLCSP package, the Balletto™ MCU allows manufacturers to implement advanced AI/ML functions such as speech recognition, adaptive noise cancellation, vocal targeting, and beam forming in true wireless stereo (TWS) earbuds, and sensor fusion in consumer wearables and other space-constrained devices.
Per the company, the Balletto family supports performance capability in audio and sensor functions thanks to its DSP and AI/ML capabilities and large on-die memory. The device’s Arm® Cortex®-M55 core, which achieves an EEMBC CoreMark® score of 704 at 160MHz, includes the Arm Helium™ M-profile vector extension (MVE), providing a 500% improvement in DSP performance.
Alongside the Cortex-M55 CPU, Balletto includes an Arm Ethos™-U55 Neural Processing Unit (NPU), designed to perform up to 46 GOPS and backed by a 2MB tightly coupled memory (TCM), extends the audio capabilities with hardware acceleration of AI/ML models. According to the company, neural network processing performance is up to 15x better than a Cortex-M4 processor can achieve, producing ideal results in audio encoding/decoding functions, including the high-bit-rate, low-latency LC3 codec that underpins the BLE Auracast TM broadcast audio technology.
Balletto features Alif Semiconductor’s aiPMTM technology, which can dynamically power only the logic and associated memory that are in use at any given time, thus achieving low overall system power consumption. The aiPM power management unit implements four system-level power modes including a Stop mode which draws just 700nA.
Thanks to its separate processor and memory, Balletto’s radio supports concurrent Bluetooth LE 5.3 and Thread operations via a single on-chip antenna, making it ideal for use in home automation networks and systems that support the Matter protocol. In addition, exceptional receive sensitivity of -101dBm and advanced algorithms help with interference avoidance from other devices, and coexistence with the other protocols sharing the 2.4GHz frequency band.
Balletto also has a dual-PA architecture: a high-power amplifier (HPA) provides a +10dBm output for maximum range and signal strength; via the low-power amplifier (LPA), the output is +4dBm for optimized power consumption.
Balletto includes a multi-layered security fabric first introduced in Alif Semiconductors’ Ensemble family of MCUs and fusion processors. It is governed by an advanced secure enclave with its dedicated processor and memory providing hardware root of trust and chain of custody.
Other key features of Balletto are:
- Digital interfaces including I3C, USB-HS (480Mbps), and twin CAN-FD channels
- Analog Front End with high-precision ADCs, including a 24-bit Sigma-Delta, DAC
- Up to 2MB of high-speed MRAM and 2MB of zero-wait state SRAM
- Octal SPI interface
- Up to 77 GPIOs including I/Os for audio input/output
- Camera interface
- MIPI display interface
- 2D GPU
- Sensor hub functionality
For more information, visit: www.alifsemi.com.
Tiera Oliver is the assistant managing editor at Embedded Computing Design. She is responsible for web content editing, product news, and story development. She also manages, edits, and develops content for ECD podcasts, including Embedded Insiders.
She utilizes her expertise in journalism and content management to oversee editorial content, coordinate with editors, and ensure high-quality output across web, print, and multimedia platforms. She manages diverse projects, assists in the production of digital magazines, and hosts company podcasts by conducting in-depth interviews with industry leaders to deliver engaging and insightful discussions.
Tiera attended Northern Arizona University, where she received her bachelor's in journalism and political science. She was also a news reporter for the student-led newspaper, The Lumberjack.
