NDP115
Neural Decision Processor
Always-on Speech & Sensor-Fusion Processor
The Syntiant® NDP115 Neural Decision Processor™ is a special purpose chip deep learning and is ideal for always-on applications in battery powered devices and other power constrained systems. The NDP115 applies neural processing to run multiple applications simultaneously with minimal power consumption. Built using the Syntiant Core 2™ programmable deep learning architecture, NDP115 is designed to natively run multiple Deep Neural Networks (DNN) on a variety of architectures, such as CNN, RNN and fully connected networks. NDP115 brings a level of ML performance that delivers 25x the tensor throughput compared to the Syntiant Core 1™ embedded in Syntiant’s NDP100 and NDP101 devices, and is able to run speech inferences at a mere 280 microwatts. A programmable HiFi 3 DSP is available for flexible feature extraction classical audio processing.
The NDP115 supports dozens of application-defined audio sequences for a variety of use cases including:
- Far-field, near-field and close-talk voice interface
- Multiple wake words and local commands
- Acoustic Echo Cancellation (AEC), noise suppression, beamforming
- Speech enhancement
- Speaker identification and verification
- Acoustic event and scene classification
- Multi-sensor fusion
BLOCK DIAGRAM

KEY FEATURES & BENEFITS
- Syntiant Core 2TM neural processor
- Support for concurrent neural networks
- Embedded user programmable HiFi-3 DSP with 144KB 64 bit data RAM and 64KB 64 bit instruction RAM
- Deeply embedded Arm Cortex MO microcontroller for device management with 48KB SRAM, dual-timers, and UART functionality
- Direct input of PCM audio and support for up to 5 audio streams
- I2C controller and target modes for sensor control and integration
- Up to 13 GPIO pins
- Flexible clock generation
- Onboard firmware decryption and authentication
- 25-ball WLBGA package (0.4mm pitch)
APPLICATIONS
Connect the real world to the digital world with our cost-saving, next-generation edge AI interface that greatly improves the user’s experience by bringing speech, vision, and sensor processing to your device.

Mobile Phones

Earbuds & Hearing Aids

Smart Watches

Smart Home

IOT Endpoints

Personal Computers
