IA700CQ

Digital Signal Processor Dsp Overview

The Syntiant IA700CQ is an AiSonic Ultra-Low Power Audio Edge Processor featuring Voice Wake and Voice ID keyword detectors with a two-second buffer. It utilizes a custom HemiDelta Lite DSP core optimized for audio processing, offering 248 Kbytes of RAM (168 Kbytes user-accessible) and 64 Kbytes of ROM. The device supports TDM/I2S and PDM interfaces, enabling integration with digital microphones and host processors via I2C, UART, or SPI. Designed for battery-powered applications, it provides machine learning capabilities with TensorFlow Lite support in a compact 24-pin QFN package.

Digital Signal Processor Dsp Feature Summary

• Audio-optimized Xtensa 64-bit two-way SIMD DSP core with up to 100 MHz clock rate
• 248 KB on-chip RAM including 168 KB available for custom algorithms and code
• Supports up to two PDM microphone inputs for dual-mic beamforming and stereo PDM output
• Integrated Voice Wake and Voice ID keyword detection with continuous listening capability

Digital Signal Processor Dsp Applications

• Remote controls
• Smart home devices
• Headsets and true wireless earbuds
• Near field voice activated controls
• Internet of Things (IoT) Devices

Digital Signal Processor Dsp Procurement Notes

Verify the specific suffix 'CQ' against the manufacturer's official documentation to confirm temperature range and packaging specifications. Ensure that the ordering part number matches the exact variant required for the target application environment. Cross-reference the datasheet revision AUD-ESP-00517 v1.0 for any updates to electrical characteristics or mechanical dimensions prior to procurement.

Digital Signal Processor Dsp Selection Notes

Select the IA700CQ for applications requiring ultra-low power voice activation and edge ML processing. Confirm interface compatibility with the host system, as only one control interface (I2C, UART, or SPI) can be active simultaneously. Evaluate memory requirements against the 168 KB user-accessible RAM limit for custom algorithm deployment. Ensure power supply rails match the specified VDD_IO (1.8V) and VDD_LDOD/A (1.1V) levels.

Digital Signal Processor Dsp Part Context

The IA700CQ belongs to the Knowles (formerly Syntiant) IA700 series of audio edge processors. This series is designed to offload voice processing tasks from main application processors, thereby extending battery life in portable devices. The CQ designation typically indicates a specific commercial grade or packaging variant within the broader IA700 family, which includes other configurations for different thermal or operational requirements.

Digital Signal Processor Dsp Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult the manufacturer's official documentation or authorized distributors for qualified alternatives. Any replacement must maintain compatibility with the HemiDelta DSP architecture or require significant firmware and hardware redesign.