Product Highlights

Powerful Processing

Featuring Audience's next-generation, high-performance custom digital signal processor (DSP) core, the eS310 system-on-chip provides advanced processing for:

• Wideband and narrowband non-stationary noise suppression
• Close-talk, both transmit and receive
• Handheld speakerphone (HHS) mode
• Acoustic echo cancellation (AEC)
• Automatic receive voice equalization (VEQ) to boost voice above the ambient acoustic environment
• Parametric equalizer for enhancing audio playback
• Wideband HD voice listening experience over narrowband networks

Accessibility Features

To provide customization and personalization options for OEMs, the eS310 processor includes:

• Personal Receiver Equalization -- to allow customers to select a receive frequency response that matches their hearing characteristic
• Voice Stretch Mode – slows a calling party’s voice in real-time, retaining pitch accuracy, for improved comprehension during rapid conversations or for voice recording playback

Customization Features

To optimize performance, the eS310 processor includes:

• A post-equalization (Post-EQ) filter for voice color tuning and to allow handset manufacturers to manage frequency response
• A receive multi-band compander (MBC) to improve audio quality and offer speaker distortion compensation

Easy Integration

Enabling easy design-in, the eS310 processor includes:

• Audience’s AuViD 2.0 graphical software application to support the design and integration process, featuring step-by-step visual design tools to efficiently tune the audio features of the eS310 processor and customize voice capabilities
• Auto microphone calibration to eliminate costly testing and per-unit adjustments on the production line
• Graphical filter design tools for easy customization of Post-EQ and MBC filter design

Efficient Platform

Designed for energy efficiency, the low-power, high performance chip is:

• Packaged in a highly compact 3.5mm x 3.5mm, 49-pin BGA (0.4mm pitch).
• Meets RoHS and Green requirements
• Designed to fit any handset style or design configuration

Specifications

Power Supplies

• LDO 1.8V; I/O: 3.3V~1.8V
• Codec:  2.5V~3.3V

Host Interface

• Up to 1Mbps I2C interface
• Up to 3Mbps UART

Analog Audio Interface

• Two analog microphone inputs
• One analog auxiliary input
• Two analog line driver outputs

Digital Audio Interface

• Three I2S/PCM interfaces
• Supports digital microphone input