Products > Integrated Circuits (ICs) > Audio ICs > B300W35A109XXG
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Manufacturer :
ON Semiconductor, LLC
Package/Case :
Product Categories :
Audio Processor
B300W35A109XXG PDF
RoHs Status:
Pb-free Halide free

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B300W35A109XXG Product Details

BelaSigna® 300 is an ultra-low power, high fidelity monaural audio processor for portable communication devices that delivers superior audio clarity without compromising size or battery life.BelaSigna 300 provides the basis for superior audio performance in devices susceptible to noise and echo. Its unique patented dual-core architecture enables multiple advanced algorithms to run simultaneously, while maintaining ultra-low power consumption. With little-to-no impact on battery life or form factor, the miniature ultra-low-power, single chip solution is ideal for use in portable devices.With domain expertise and best-in-class algorithms, ON Semiconductor and our network of solution partners can help you develop and launch products quickly. BelaSigna 300 chips are backed by a comprehensive suite of development tools, hands-on training and full technical support.


  • Load-balanced dual-core DSP architecture optimized for audio processing
  • Powerful computing: 24-bit precision computing enables software like advanced adaptive noise reduction and echo can
  • Ultra-low power consumption: typically 1-10 mA
  • Extended battery life: Industry leading ultra-low power consumption enables longer operation in active and standby modes without sacrificing performance or increasing battery size.
  • Miniature form factor: 3.63 x 2.68 mm PCB area with few external components
  • Miniature size: One of the smallest audio processing systems available, the 35-ball WLCSP package can be designed into new or existing PCB layouts with little or no impact on the size of the end product
  • Input Stage: - 88 dB system dynamic range extendable to 110 dB- A/D sample rates from 8.0 to 60 kHz- 4 independent channels
  • Ultra-high audio fidelity: Input A/Ds can be configured to provide a a dynamic range of up to 110 dB. Combined with extremely low system noise and low group delay, the BelaSigna 300 processor is capable of exceptional audio quality.
  • Output stage: - High-fidelity Class-D output drives speakers directly- 25 mA maximum acoustic power output
  • Unmatched design flexibility: The CFX/HEAR dual-core architecture has unmatched flexibility with a 24-bit open-programmable DSP core and a highly configurable accelerator signal processing engine. BelaSigna® 300 delivers the flexibility of a generic DSP with the power consumption and size of a fixed-function ASIC.
  • Flexible Input Output Controller (IOC) to offload digital signal moves from the DSP
  • Complete solution: Algorithm development, from software building blocks to full algorithm suites, best-in-class development tools, technical support, and training are all available
  • Supports advanced adaptive audio processing algorithms with extremely low group delay
  • 128-bit AES advanced encryption to protect manufacturer and user data
  • Seamless connection to other systems and HMI devices such as buttons, potentiometers and LEDs
  • External clock input up to 40 MHz


  • Digital Audio Processing
  • Mobile Phones
  • Hands-free kits
  • Wireless headsets
  • Other portable audio devices
  • Electrocardiograph
  • Pulse Oximeter

Technical Parameters

Function Audio Signal Processor Operating Temperature -40??C ~ 85??C (TA)
Applications Digital Audio Interfacing Specifications 12.8kHz
Number of Channels 4 Package / Case 35-VFBGA, WLCSP
Interface GPIO, I2C, PCM, SPI, UART Supplier Device Package 35-WLCSP (3.63x2.68)
Voltage Supply 0.9V ~ 2V

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